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A Technical Creation
If any
PLC unlock and Backup needs.
Please contact with us.
01737-610897
01910887570
If any
PLC unlock and Backup needs.
Please contact with us.
01737-610897
#
*Urgent Vacancy* Announcement
Company Name : A group of company.
Position : Electrician (Maintenance)
Vacancy : 01
Educational Qualification :Minimum HSC
Experience : Minimum 4 years of knit dyeing and finishing floor.
Salary : 25-30k
Job Location : Narayanganj
Interested candidates inbox to me.
(Just SMS allowed)
01737-610897
Deadline for CV Sending : Urgent
Please stay with us..
Pentagon Engineering - YouTube Share your videos with friends, family, and the world
Job opportunity in a woven dyeing group company.
Post : Service Engineer
Experience : 5years
(loom controller, sizeing machine control card, Inverter, PLC,HMI,DCS,SMPS,IPS,UPS Etc repair works)
EPZ, Isshordi,Pabna.
Salary: 40k to 50k tk
Minimum Diploma in Ent/ET
Contact with me via comment box.
Assalamualaikum
Dear All
Pentagon Engineering is a centre for All kind of Electronics circuit boards repair works like as
Any types of
1.Inverter / VFD
2.Converter
3.PLC
4.HMI
5.DCS
6.Emergency Modules
7.Baseband Sensor
8.Centering Guider Controller
9. Actuator
10.Power Supply
11.Servo Controller
12.Swing Machine controller
13.Burner Controller
14.Selvage guider
15.IPS, UPS & Stabilizer
16. Screw Compressor Controller.
17.Magnet Controller
18.Loadcell controller
19.Waight balance
20. Servo motor pump
21. Motor Valve
22. PRV
23. knitting machine controller
24. Speed controller
25. Dosing Controller
All types and brand of Electronics circuit boards repair works.
Engr. Firoz Mahmud
Manager (Electronics Lab)
Pentagon Engineeringâĸ
+8801737610897
Our V900 series inverter's software has been fully upgraded with built-in heavy load and constant pressure water supply program. Please consult me for the latest quotation.
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ā§§. āĻĒā§āĻ°āĻžāĻāĻŽāĻžāĻ°āĻŋ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨: 230 KV, 132 KV
ā§¨. āĻ¸ā§āĻā§āĻ¨ā§āĻĄāĻžāĻ°āĻŋ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨: 66KV, 33KV
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āĻ°ā§āĻĨāĻžā§ āĻļāĻ°ā§āĻ, āĻŽāĻŋāĻĄāĻŋāĻ¯āĻŧāĻžāĻŽ āĻāĻŦāĻ āĻ˛āĻ āĻ˛āĻžāĻāĻ¨ā§āĻ° āĻŦā§āĻļāĻŋāĻˇā§āĻā§āĻ¯( Feature of short, medium and long Line):
ā§§. āĻļāĻ°ā§āĻ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨: āĻ¯āĻĻāĻŋ āĻā§āĻ¨ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ā§āĻ° āĻĻā§āĻ°ā§āĻā§āĻ¯ 80KM āĻāĻ° āĻāĻŽ āĻšāĻ¯āĻŧ āĻāĻŦāĻ āĻ˛āĻžāĻāĻ¨ āĻā§āĻ˛ā§āĻā§āĻ 20KV āĻāĻ° āĻāĻŽ āĻšāĻ¯āĻŧ āĻ¤āĻŦā§ āĻ¤āĻžāĻā§ āĻļāĻ°ā§āĻ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ āĻŦāĻ˛ā§āĨ¤
ā§¨. āĻŽāĻŋāĻĄāĻŋā§āĻžāĻŽ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨: āĻ¯āĻĻāĻŋ āĻā§āĻ¨ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ā§āĻ° āĻĻā§āĻ°ā§āĻā§āĻ¯ 80 āĻāĻŋāĻ˛ā§āĻŽāĻŋāĻāĻžāĻ°ā§āĻ° āĻŦā§āĻļāĻŋ āĻāĻŋāĻ¨ā§āĻ¤ā§ 200KM āĻāĻ° āĻāĻŽ āĻšāĻ¯āĻŧ āĻāĻŦāĻ āĻ˛āĻžāĻāĻ¨ āĻā§āĻ˛ā§āĻā§āĻ 20KV āĻāĻ° āĻŦā§āĻļāĻŋ āĻāĻŋāĻ¨ā§āĻ¤ā§ 100 KV āĻāĻ° āĻāĻŽ āĻšāĻ¯āĻŧ āĻ¤āĻŦā§ āĻ¤āĻžāĻā§ āĻŽāĻŋāĻĄāĻŋāĻ¯āĻŧāĻžāĻŽ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ āĻŦāĻ˛ā§āĨ¤
ā§Š. āĻ˛āĻ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨: āĻ¯āĻĻāĻŋ āĻā§āĻ¨ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ā§āĻ° āĻĻā§āĻ°ā§āĻā§āĻ¯ 200KM āĻāĻ° āĻŦā§āĻļāĻŋ āĻšāĻ¯āĻŧ āĻāĻŦāĻ āĻ˛āĻžāĻāĻ¨ āĻā§āĻ˛ā§āĻā§āĻ 100KV āĻāĻ° āĻŦā§āĻļāĻŋ āĻšāĻ¯āĻŧ āĻ¤āĻŦā§ āĻ¤āĻžāĻā§ āĻ˛āĻ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ āĻŦāĻ˛ā§āĨ¤
*āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻĒāĻāĻŋāĻļāĻ¨(Transposition in Transmission Line): āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻĒāĻāĻŋāĻļāĻ¨ āĻāĻ°āĻ˛ā§ āĻĒā§āĻ°āĻ¤ā§āĻ¯ā§āĻ āĻ˛āĻžāĻāĻ¨ā§āĻ° āĻā§ āĻāĻ¨ā§āĻĄāĻžāĻā§āĻāĻžāĻ¨ā§āĻ¸ āĻā§āĻ¯āĻžāĻĒāĻžāĻ¸āĻŋāĻā§āĻ¯āĻžāĻ¨ā§āĻ¸ āĻ¸āĻŽāĻžāĻ¨ āĻšāĻ¯āĻŧ āĻĢāĻ˛ā§ āĻā§āĻ˛ā§āĻā§āĻ āĻ°ā§āĻā§āĻ˛ā§āĻļāĻ¨ āĻĒāĻ°āĻŋāĻŦāĻšāĻ¨ āĻĻāĻā§āĻˇāĻ¤āĻž āĻ
āĻĒā§āĻā§āĻˇāĻžāĻā§āĻ¤ āĻāĻ¨ā§āĻ¨āĻ¤ āĻšāĻ¯āĻŧāĨ¤
*āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ (Distribution Line): āĻā§āĻ°āĻžāĻšāĻ āĻĒāĻ°ā§āĻ¯āĻžāĻ¯āĻŧā§ āĻ
āĻ°ā§āĻĨāĻžā§ āĻĻā§āĻāĻžāĻ¨āĻĒāĻžāĻ āĻŦāĻžāĻĄāĻŧāĻŋāĻāĻ° āĻļāĻŋāĻ˛ā§āĻĒ-āĻāĻžāĻ°āĻāĻžāĻ¨āĻž āĻĒā§āĻ°āĻā§āĻ¤āĻŋ āĻ¸ā§āĻĨāĻžāĻ¨ā§ āĻŦā§āĻĻā§āĻ¯ā§āĻ¤āĻŋāĻ āĻĒāĻžāĻāĻ¯āĻŧāĻžāĻ° āĻĒā§āĻāĻā§ āĻĻā§āĻāĻ¯āĻŧāĻž āĻŦāĻž āĻŦāĻŋāĻ¤āĻ°āĻ¨ā§āĻ° āĻāĻ¨ā§āĻ¯ āĻ¯ā§ āĻ¸āĻžāĻ°ā§āĻāĻŋāĻ āĻāĻĄāĻŧā§ āĻ¤ā§āĻ˛āĻž āĻšāĻ¯āĻŧ āĻ¸ā§āĻāĻŋ āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨āĨ¤ āĻāĻ¤ā§ āĻ
āĻ¨ā§āĻ āĻļāĻžāĻāĻž āĻĨāĻžāĻā§ āĻāĻŦāĻ āĻ
āĻ¸āĻāĻā§āĻ¯ āĻā§āĻ¯āĻžāĻĒāĻŋāĻāĻ¯āĻŧā§āĻ° āĻŽāĻžāĻ§ā§āĻ¯āĻŽā§ āĻ¸āĻžāĻ°ā§āĻāĻŋāĻ¸ āĻ¸āĻāĻ¯ā§āĻā§āĻ¤ āĻĨāĻžāĻā§āĨ¤āĻā§āĻ˛ā§āĻā§āĻ āĻāĻ° āĻāĻŋāĻ¤ā§āĻ¤āĻŋāĻ¤ā§āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ āĻĻā§āĻ āĻĒā§āĻ°āĻāĻžāĻ°:
ā§§. āĻĒā§āĻ°āĻžāĻāĻŽāĻžāĻ°āĻŋ āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨: 11 KV, 6.6 KV, 3.3 KV.
ā§¨. āĻ¸ā§āĻā§āĻ¨ā§āĻĄāĻžāĻ°āĻŋ āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨: 400V, 220V.
*āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ¸āĻŋāĻ¸ā§āĻā§āĻŽ āĻāĻŦāĻ āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨ āĻ¸āĻŋāĻ¸ā§āĻā§āĻŽā§ āĻ¸āĻ°āĻŦāĻ°āĻžāĻš āĻ āĻāĻ° āĻ§āĻ°āĻ¨ (Supply and Supply style in Transmission and Distribution system):
āĻŦā§āĻĻā§āĻ¯ā§āĻ¤āĻŋāĻ āĻĒāĻžāĻāĻ¯āĻŧāĻžāĻ° āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻāĻ° āĻā§āĻˇā§āĻ¤ā§āĻ°ā§ AC 3Phase-3wire āĻĒāĻĻā§āĻ§āĻ¤āĻŋ āĻ¸āĻ°ā§āĻŦāĻžāĻ§āĻŋāĻ āĻĒā§āĻ°āĻāĻ˛āĻŋāĻ¤āĨ¤ āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨ āĻāĻ° āĻā§āĻˇā§āĻ¤ā§āĻ°ā§ AC 3Phase-4wire āĻĒāĻĻā§āĻ§āĻ¤āĻŋ āĻŦāĻšā§āĻ˛ āĻŦā§āĻ¯āĻŦāĻšā§āĻ¤āĨ¤ āĻāĻāĻžāĻĄāĻŧāĻž āĻ āĻ¯ā§ āĻ¸āĻāĻ˛ āĻĒāĻĻā§āĻ§āĻ¤āĻŋāĻ¤ā§ āĻŦā§āĻĻā§āĻ¯ā§āĻ¤āĻŋāĻ āĻĒāĻžāĻāĻ¯āĻŧāĻžāĻ° āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨ āĻāĻ°āĻž āĻ¯āĻžāĻ¯āĻŧ āĻ¤āĻž āĻšāĻ˛ā§:
1. DC system: (DC two wire, DC two wire main pointed earthed, DC three phase system.)
2. Single phase AC system: (Single phase two wire, AC two wire main pointed earthed, Single phase three wire.)
3. 2phase AC system: (Two phase three wire, Two phase four wire)
4. 3phase AC system: (Three phase three wire, Three phase four wire.)
*āĻā§āĻ°ā§āĻĄ āĻ¸āĻŋāĻ¸ā§āĻā§āĻŽ (Grid system): āĻāĻāĻžāĻ§āĻŋāĻ āĻĒāĻžāĻāĻ¯āĻŧāĻžāĻ° āĻĒā§āĻ˛ā§āĻ¯āĻžāĻ¨ā§āĻā§āĻ° āĻā§āĻĒāĻžāĻĻāĻŋāĻ¤ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§ āĻļāĻā§āĻ¤āĻŋ āĻā§ āĻāĻāĻāĻŋ āĻ¨ā§āĻāĻāĻ¯āĻŧāĻžāĻ°ā§āĻā§āĻ° āĻāĻāĻ¤āĻžāĻ¯āĻŧ āĻ¨āĻŋāĻ°ā§āĻĻāĻŋāĻˇā§āĻ āĻāĻā§āĻ āĻŽāĻžāĻ¨ā§āĻ° āĻā§āĻ˛ā§āĻā§āĻ¯ā§ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ā§āĻ° āĻŽāĻžāĻ§ā§āĻ¯āĻŽā§ āĻ¸āĻŽā§āĻŽāĻŋāĻ˛āĻŋāĻ¤ āĻ¸āĻ°āĻŦāĻ°āĻžāĻš āĻāĻ°āĻžāĻ° āĻŦā§āĻ¯āĻŦāĻ¸ā§āĻĨāĻž āĻā§ āĻā§āĻ°āĻŋāĻĄ āĻŦāĻ˛ā§āĨ¤
*āĻĢāĻŋāĻĄāĻžāĻ°(Feeder): āĻŦāĻŋāĻāĻŋāĻ¨ā§āĻ¨ āĻāĻ¨āĻŦāĻšā§āĻ˛ āĻāĻ˛āĻžāĻāĻž āĻļāĻŋāĻ˛ā§āĻĒāĻžāĻā§āĻāĻ˛ āĻŦāĻž āĻāĻŦāĻžāĻ¸āĻŋāĻ āĻāĻ˛āĻžāĻāĻžāĻ¯āĻŧ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§ āĻŦāĻŋāĻ¤āĻ°āĻŖā§āĻ° āĻāĻ¨ā§āĻ¯ āĻāĻā§āĻ āĻā§āĻ˛ā§āĻā§āĻ āĻāĻĒāĻā§āĻ¨ā§āĻĻā§āĻ° āĻŦāĻž āĻā§āĻ°ā§āĻĄ āĻāĻĒāĻā§āĻ¨ā§āĻĻā§āĻ° āĻĨā§āĻā§ āĻŦāĻŋāĻāĻŋāĻ¨ā§āĻ¨ āĻ˛ā§āĻĄ āĻ¸ā§āĻ¨ā§āĻāĻžāĻ°ā§ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§ āĻ¸āĻ°āĻŦāĻ°āĻžāĻšā§āĻ° āĻ¨āĻŋāĻŽāĻŋāĻ¤ā§āĻ¤ā§ āĻ¯ā§ āĻŦā§āĻĻā§āĻ¯ā§āĻ¤āĻŋāĻ āĻ˛āĻžāĻāĻ¨ āĻ¨āĻŋāĻ°ā§āĻŽāĻŋāĻ¤ āĻšāĻ¯āĻŧ āĻ¤āĻžāĻā§āĻ āĻĢāĻŋāĻĄāĻžāĻ° āĻŦāĻ˛ā§ āĻ
āĻ°ā§āĻĨāĻžā§ āĻāĻāĻž āĻšāĻ˛ā§ āĻāĻā§āĻ āĻā§āĻ˛ā§āĻā§āĻ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§ āĻāĻĒāĻā§āĻ¨ā§āĻĻā§āĻ° āĻšāĻ¤ā§ āĻ¨āĻŋāĻŽā§āĻ¨āĻāĻžāĻĒ āĻāĻ° āĻŦāĻŋāĻĻā§āĻ¯ā§ā§ āĻāĻĒāĻā§āĻ¨ā§āĻĻā§āĻ° āĻŽāĻ§ā§āĻ¯ā§ āĻ¸āĻāĻ¯ā§āĻā§āĻ¤ āĻ˛āĻžāĻāĻ¨āĨ¤
*āĻĢāĻŋāĻĄāĻžāĻ°ā§āĻ° āĻŦā§āĻļāĻŋāĻˇā§āĻā§āĻ¯ (Feature of Feeder):
ā§§. āĻĢāĻŋāĻĄāĻžāĻ°ā§ āĻā§āĻ¨ āĻā§āĻ¯āĻžāĻĒāĻŋāĻ āĻĨāĻžāĻā§āĻ¨āĻžāĨ¤
ā§¨. āĻāĻžāĻ°ā§āĻ¨ā§āĻ āĻĄā§āĻ¨ā§āĻ¸āĻŋāĻāĻŋ āĻ¸āĻ°ā§āĻŦāĻ¤ā§āĻ° āĻ¸āĻŽāĻžāĻ¨ āĻĨāĻžāĻā§āĨ¤
ā§Š. āĻāĻžāĻ°ā§āĻ¨ā§āĻ āĻā§āĻ¯āĻžāĻĒāĻžāĻ¸āĻŋāĻāĻ° āĻāĻ° āĻāĻĒāĻ° āĻāĻŋāĻ¤ā§āĻ¤āĻŋ āĻāĻ°ā§ āĻĢāĻŋāĻĄāĻžāĻ° āĻĄāĻŋāĻāĻžāĻāĻ¨ āĻāĻ°āĻž āĻšāĻ¯āĻŧāĨ¤
ā§Ē. āĻāĻšāĻž āĻāĻāĻāĻŋ āĻŽā§āĻāĻž āĻāĻā§āĻ¤āĻŋāĻ° āĻā§āĻŦāĻ˛, āĻ¯āĻž āĻ¸āĻžāĻŦ-āĻ¸ā§āĻā§āĻļāĻ¨ āĻĨā§āĻā§ āĻā§āĻ¨ āĻāĻ˛āĻžāĻāĻžāĻ¯āĻŧ āĻĒāĻžāĻāĻ¯āĻŧāĻžāĻ° āĻāĻŋāĻ¤āĻ°ā§āĻ° āĻāĻ¨ā§āĻ¯ āĻŦā§āĻ¯āĻŦāĻšā§āĻ¤ āĻšāĻ¯āĻŧāĨ¤
ā§Ģ. āĻā§āĻ˛ā§āĻā§āĻ āĻĄā§āĻ°āĻĒāĻā§ āĻ¤āĻ¤ āĻā§āĻ°ā§āĻ¤ā§āĻŦ āĻĻā§āĻāĻ¯āĻŧāĻž āĻšāĻ¯āĻŧ āĻ¨āĻž āĻāĻžāĻ°āĻ¨ āĻā§āĻˇāĻ¤āĻŋāĻĒā§āĻ°āĻŖā§āĻ° āĻŦā§āĻ¯āĻŦāĻ¸ā§āĻĨāĻž āĻŦāĻŋāĻĻā§āĻ¯āĻŽāĻžāĻ¨āĨ¤
*āĻšāĻžāĻ-āĻā§āĻ˛ā§āĻā§āĻ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ā§āĻ° āĻ¸ā§āĻŦāĻŋāĻ§āĻž (Advantage of High voltage Transmission Line):
ā§§. High Voltage Power transmission āĻ āĻā§āĻ¤āĻ¨ āĻāĻŽ āĻ˛āĻžāĻā§āĨ¤
ā§¨. High Voltage āĻ Transmission line āĻāĻ° āĻĻāĻā§āĻˇāĻ¤āĻž āĻŦā§āĻĻā§āĻ§āĻŋ āĻĒāĻžā§āĨ¤
ā§Š. High Voltage Transmission line āĻāĻ° āĻā§āĻ˛ā§āĻā§āĻ āĻĄā§āĻ°āĻĒ āĻāĻ° āĻšāĻžāĻ° āĻāĻŽāĨ¤
ā§Ē. Transmission line āĻāĻ° Voltage āĻŦā§āĻļā§ āĻšāĻ˛ā§ Line Current āĻāĻ° āĻĒāĻ°āĻŋāĻŽāĻžāĻ¨ āĻāĻŽā§ āĻ¯āĻžā§, āĻĢāĻ˛ā§ Line āĻ˛āĻ¸ āĻāĻ° āĻŽāĻžāĻ¨ āĻāĻŽ āĻšā§āĨ¤
*āĻ˛ā§-āĻā§āĻ˛ā§āĻā§āĻ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻāĻ° āĻ¸ā§āĻŦāĻŋāĻ§āĻž (Advantage of Low voltage Transmission Line):
ā§§. Line support āĻāĻ° āĻĒāĻ°āĻŋāĻŽāĻžāĻ¨ āĻāĻŽ āĻ˛āĻžāĻā§ āĻŦāĻ˛ā§ āĻāĻ°āĻ āĻāĻŽ āĻšā§āĨ¤
ā§¨. Transmission āĻāĻ°āĻ āĻāĻŽ āĻšā§āĨ¤
ā§Š. Ground Clearance & Conductor Spacing āĻāĻŽ āĻšāĻ˛ā§āĻ āĻā§āĻ¨ā§ āĻ¸āĻŽāĻ¸ā§āĻ¯āĻž āĻšā§āĻ¨āĻžāĨ¤
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āĻĒāĻ°ā§āĻŦāĻ ā§¨ (āĻāĻ āĻĒāĻ°ā§āĻŦā§ āĻĨāĻžāĻāĻā§ āĻāĻ°ā§āĻ¨āĻž āĻāĻĢā§āĻā§āĻ, āĻ¸ā§āĻāĻŋāĻ¨ āĻāĻĢā§āĻā§āĻ, āĻĒā§āĻ°āĻā§āĻ¸āĻŋāĻŽāĻŋāĻāĻŋ āĻāĻĢā§āĻā§āĻ, āĻĢā§āĻ°āĻžāĻ¨ā§āĻāĻŋ āĻāĻĢā§āĻā§āĻ, āĻā§āĻ°āĻŋāĻāĻŋāĻāĻžāĻ˛ āĻĄāĻŋāĻ¸āĻ°āĻžāĻĒā§āĻāĻŋāĻ āĻā§āĻ˛ā§āĻā§āĻ, āĻāĻŋāĻā§ā§āĻžāĻ˛ āĻā§āĻ°āĻŋāĻāĻŋāĻāĻžāĻ˛ āĻā§āĻ˛ā§āĻā§āĻ)
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āĻāĻ°ā§āĻ¨āĻž āĻāĻĢā§āĻā§āĻ (Corona Effect): āĻ¯āĻāĻ¨ āĻĻā§āĻāĻŋ āĻāĻ¨ā§āĻĄāĻžāĻā§āĻāĻ°ā§āĻ° āĻāĻ¸ā§āĻĒā§āĻ¸āĻŋāĻ āĻŦā§āĻ¯āĻžāĻ¸ā§āĻ° āĻ¤ā§āĻ˛āĻ¨āĻžāĻ¯āĻŧ āĻŦā§āĻļāĻŋ āĻ
āĻŦāĻ¸ā§āĻĨāĻžāĻ¯āĻŧ āĻ°ā§āĻā§ āĻ¤āĻžāĻĻā§āĻ° āĻāĻĄāĻŧāĻžāĻāĻĄāĻŧāĻŋ AC Voltage āĻĒā§āĻ°āĻ¯āĻŧā§āĻ āĻāĻ°ā§ āĻ§ā§āĻ°ā§ āĻ§ā§āĻ°ā§ āĻŦā§āĻĻā§āĻ§āĻŋ āĻāĻ°āĻž āĻšāĻ¯āĻŧ āĻ¤āĻāĻ¨ āĻāĻāĻāĻŋ āĻŦāĻŋāĻļā§āĻˇ āĻĒāĻ°ā§āĻ¯āĻžāĻ¯āĻŧ āĻāĻ¸ā§āĨ¤ āĻāĻ āĻŦāĻŋāĻļā§āĻˇ āĻĒāĻ°ā§āĻ¯āĻžāĻ¯āĻŧ āĻāĻ¨ā§āĻĄāĻžāĻā§āĻāĻ°ā§āĻ° āĻāĻžāĻ°āĻĒāĻžāĻļā§āĻ° āĻŦāĻžāĻ¤āĻžāĻ¸ Electrostatic stress āĻšāĻ¯āĻŧā§ āĻāĻ¯āĻŧāĻ¨āĻŋāĻ¤ āĻšāĻ¯āĻŧ āĻāĻŦāĻ āĻŦāĻžāĻ¤āĻžāĻ¸ā§ āĻāĻ¨ā§āĻ¸ā§āĻ˛ā§āĻļāĻ¨ āĻā§āĻā§āĻā§ āĻ¯āĻžāĻ¯āĻŧāĨ¤ āĻ āĻ
āĻŦāĻ¸ā§āĻĨāĻžāĻ¯āĻŧ āĻšāĻžāĻ˛āĻāĻž āĻŦā§āĻā§āĻ¨āĻŋ āĻ°āĻļā§āĻŽāĻŋ āĻĻā§āĻāĻž āĻ¯āĻžāĻ¯āĻŧ āĻāĻŦāĻ āĻāĻāĻ¨ āĻā§āĻ¯āĻžāĻ¸ā§āĻ° āĻ¸ā§āĻˇā§āĻāĻŋ āĻšāĻ¯āĻŧ āĻ¸ā§āĻāĻžāĻ āĻāĻ°ā§āĻ¨āĻž āĻ¨āĻžāĻŽā§ āĻĒāĻ°āĻŋāĻāĻŋāĻ¤āĨ¤
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āĻāĻ°ā§āĻ¨āĻžāĻ° āĻĒā§āĻ°āĻāĻžāĻŦ (Influence of Corona):
ā§§. āĻāĻ¨ā§āĻĄāĻžāĻāĻāĻ°ā§āĻ° āĻāĻžāĻ°āĻĒāĻžāĻļā§ āĻŦā§āĻā§āĻ¨āĻŋ āĻ°āĻļā§āĻŽāĻŋ āĻĻā§āĻāĻž āĻ¯āĻžāĻ¯āĻŧāĨ¤
ā§¨. āĻāĻāĻ¨ āĻā§āĻ¯āĻžāĻ¸ā§āĻ° āĻ¸ā§āĻˇā§āĻāĻŋ āĻšāĻ¯āĻŧāĨ¤
ā§Š. āĻĒāĻžāĻā§āĻžāĻ° āĻ˛āĻ¸ āĻšāĻ¯āĻŧāĨ¤
ā§Ē. āĻšāĻžāĻ°āĻŽā§āĻ¨āĻŋāĻā§āĻ¸ āĻāĻžāĻ°ā§āĻ¨ā§āĻā§āĻ° āĻ¸ā§āĻˇā§āĻāĻŋ āĻšāĻ¯āĻŧāĨ¤
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āĻāĻ°ā§āĻ¨āĻž āĻāĻ° āĻ¸ā§āĻŦāĻŋāĻ§āĻž (Advantage of Corona):
ā§§. āĻ¸āĻžāĻ°ā§āĻ āĻā§āĻ˛ā§āĻā§āĻ āĻāĻ° āĻĢāĻ˛ā§ āĻ¸ā§āĻˇā§āĻ āĻā§āĻ°āĻžāĻ¨āĻāĻŋāĻ¯āĻŧā§āĻ¨ā§āĻ āĻāĻĢā§āĻā§āĻ āĻā§ āĻ¸ā§āĻŽāĻŋāĻ¤ āĻ°āĻžāĻā§ āĻŦāĻ˛ā§ āĻ¸ā§āĻāĻ āĻāĻŋāĻ¯āĻŧāĻžāĻ° āĻāĻ° āĻ¸ā§āĻĢāĻāĻŋ āĻŦāĻžāĻ˛ā§āĻŦ āĻšāĻŋāĻ¸ā§āĻŦā§ āĻāĻžāĻ āĻāĻ°ā§
ā§¨. āĻāĻ°ā§āĻ¨āĻžāĻ° āĻāĻžāĻ°āĻ¨ā§ āĻĒāĻ°āĻŋāĻŦāĻžāĻšāĻŋāĻĻā§āĻŦā§ā§āĻ° āĻŽāĻ§ā§āĻ¯ā§ āĻāĻ˛ā§āĻāĻā§āĻ°ā§āĻ¸ā§āĻā§āĻ¯āĻžāĻāĻŋāĻ āĻ¸ā§āĻā§āĻ°ā§āĻ¸ā§āĻ° āĻŽāĻžāĻ¨ āĻšā§āĻ°āĻžāĻ¸ āĻĒā§āĻ¯āĻŧā§ āĻĨāĻžāĻā§āĨ¤ āĻāĻžāĻ°āĻ¨ āĻāĻ¸āĻŽāĻ¯āĻŧ āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§āĻ° āĻāĻžāĻ°āĻĒāĻžāĻļā§āĻ° āĻŦāĻžāĻ¤āĻžāĻ¸ āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§ āĻšāĻŋāĻ¸ā§āĻŦā§ āĻāĻžāĻ āĻāĻ°ā§ āĻāĻŦāĻ āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§āĻ° āĻāĻžāĻ°ā§āĻā§āĻ¯āĻŧāĻžāĻ˛ āĻŦā§āĻ¯āĻžāĻ¸ āĻŦā§āĻĻā§āĻ§āĻŋ āĻĒāĻžāĻ¯āĻŧāĨ¤
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āĻāĻ°ā§āĻ¨āĻž āĻāĻ° āĻ
āĻ¸ā§āĻŦāĻŋāĻ§āĻž (Disadvantage of Corona) :
ā§§. āĻĒāĻžāĻā§āĻžāĻ° āĻ˛āĻ¸ āĻšāĻ¯āĻŧāĨ¤
ā§¨. āĻĻāĻā§āĻˇāĻ¤āĻž āĻšā§āĻ°āĻžāĻ¸ āĻĒāĻžāĻ¯āĻŧāĨ¤
ā§Š. āĻāĻāĻ¨ āĻā§āĻ¯āĻžāĻ¸ā§āĻ° āĻ¸ā§āĻˇā§āĻāĻŋ āĻšāĻ¯āĻŧāĨ¤
ā§Ē. āĻā§āĻ¯āĻžāĻŽāĻŋāĻā§āĻ¯āĻžāĻ˛ āĻ°āĻŋāĻāĻāĻļāĻ¨ āĻāĻ° āĻāĻžāĻ°āĻŖā§ āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§ āĻā§āĻˇāĻ¯āĻŧāĻĒā§āĻ°āĻžāĻĒā§āĻ¤ āĻšāĻ¯āĻŧāĨ¤
ā§Ģ. āĻ¨āĻŋāĻāĻāĻŦāĻ°ā§āĻ¤ā§ āĻāĻŽāĻŋāĻāĻ¨āĻŋāĻā§āĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ā§ āĻŦāĻŋāĻā§āĻ¨ āĻ¸ā§āĻˇā§āĻāĻŋ āĻāĻ°ā§āĨ¤
ā§Ŧ. āĻāĻ¨āĻ¸ā§āĻ˛ā§āĻāĻ° āĻ āĻĒā§āĻā§āĻ° āĻŽāĻ§ā§āĻ¯ā§ āĻĢā§āĻ˛āĻžāĻļ āĻāĻāĻžāĻ° āĻā§āĻ˛ā§āĻā§āĻ āĻāĻ° āĻ¸ā§āĻˇā§āĻāĻŋ āĻšāĻ¯āĻŧāĨ¤
ā§. āĻĒā§āĻ°āĻā§āĻ° āĻšāĻžāĻ°ā§āĻŽāĻ¨āĻŋāĻā§āĻ¸ āĻāĻ° āĻā§āĻĒāĻ¤ā§āĻ¤āĻŋ āĻšāĻ¯āĻŧāĨ¤
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āĻā§āĻ°āĻŋāĻāĻŋāĻā§āĻ¯āĻžāĻ˛ āĻĄāĻŋāĻ¸āĻ°āĻžāĻĒā§āĻāĻŋāĻ āĻā§āĻ˛ā§āĻā§āĻ (Critical Disruptive Voltage): āĻ¸āĻ°ā§āĻŦāĻ¨āĻŋāĻŽā§āĻ¨ āĻ¯ā§ āĻĢā§āĻ-āĻā§-āĻ¨āĻŋāĻāĻā§āĻ°āĻžāĻ˛ āĻā§āĻ˛ā§āĻā§āĻā§ āĻāĻ°ā§āĻ¨āĻž āĻ¸āĻāĻāĻāĻŋāĻ¤ āĻšāĻ¯āĻŧ āĻ¤āĻžāĻā§ āĻā§āĻ°āĻŋāĻāĻŋāĻā§āĻ¯āĻžāĻ˛ āĻĄāĻŋāĻ¸āĻ°āĻžāĻĒā§āĻāĻŋāĻ āĻā§āĻ˛ā§āĻā§āĻ āĻŦāĻ˛āĻž āĻšāĻ¯āĻŧāĨ¤
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āĻāĻŋāĻā§āĻ¯āĻŧāĻžāĻ˛ āĻā§āĻ°āĻŋāĻāĻŋāĻā§āĻ¯āĻžāĻ˛ āĻā§āĻ˛ā§āĻā§āĻ (Visual Critical Voltage): āĻ¸āĻ°ā§āĻŦāĻ¨āĻŋāĻŽā§āĻ¨ āĻ¯ā§ āĻĢā§āĻ-āĻā§-āĻ¨āĻŋāĻāĻā§āĻ°āĻžāĻ˛ āĻā§āĻ˛ā§āĻā§āĻā§ āĻāĻ°āĻ¨āĻžāĻ° āĻāĻ˛ā§ āĻāĻžāĻ°āĻĒāĻžāĻļā§ āĻĻā§āĻļā§āĻ¯āĻŽāĻžāĻ¨ āĻšāĻ¯āĻŧ āĻ¤āĻžāĻā§ āĻāĻŋāĻā§āĻ¯āĻŧāĻžāĻ˛ āĻā§āĻ°āĻŋāĻāĻŋāĻā§āĻ¯āĻžāĻ˛ āĻā§āĻ˛ā§āĻā§āĻ āĻŦāĻ˛āĻž āĻšāĻ¯āĻŧāĨ¤
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āĻ¸ā§āĻāĻŋāĻ¨ āĻāĻĢā§āĻā§āĻ (Skin Effect) : āĻāĻ¸āĻŋ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§ āĻĒā§āĻ°āĻŦāĻžāĻš āĻā§āĻ¨ āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§āĻ° āĻŽāĻ§ā§āĻ¯ āĻĻāĻŋāĻ¯āĻŧā§ āĻĒā§āĻ°āĻŦāĻžāĻšāĻŋāĻ¤ āĻšāĻāĻ¯āĻŧāĻžāĻ° āĻ¸āĻŽāĻ¯āĻŧ āĻ¸ā§ āĻĒāĻ°āĻŋāĻŦāĻžāĻšāĻŋāĻ° āĻāĻŋāĻ¤āĻ°ā§ āĻĒā§āĻ°āĻŦā§āĻļ āĻ¨āĻž āĻāĻ°ā§ āĻāĻšāĻžāĻ° āĻ¸āĻžāĻ°āĻĢā§āĻ¸ āĻĻāĻŋāĻ¯āĻŧā§ āĻĒā§āĻ°āĻŦāĻžāĻšāĻŋāĻ¤ āĻšāĻ¤ā§ āĻā§āĻˇā§āĻāĻž āĻāĻ°ā§ āĻāĻāĻžāĻā§ āĻ¸ā§āĻāĻŋāĻ¨ āĻāĻĢā§āĻā§āĻ āĻŦāĻ˛ā§āĨ¤
āĻ¸ā§āĻāĻŋāĻ¨ āĻāĻĢā§āĻā§āĻ āĻāĻ° āĻāĻžāĻ°āĻ¨ā§ āĻ˛āĻžāĻāĻ¨ā§āĻ° āĻ°ā§āĻāĻŋāĻ¸ā§āĻā§āĻ¯āĻžāĻ¨ā§āĻ¸ āĻŦā§āĻĻā§āĻ§āĻŋ āĻĒāĻžāĻ¯āĻŧ, āĻĢāĻ˛ā§ āĻ˛āĻžāĻāĻ¨ āĻ˛āĻ¸āĻ āĻŦā§āĻĻā§āĻ§āĻŋ āĻĒāĻžāĻ¯āĻŧāĨ¤
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āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ā§ āĻ¸ā§āĻāĻŋāĻ¨ āĻāĻĢā§āĻā§āĻā§āĻ° āĻĒā§āĻ°āĻāĻžāĻŦ (Influence of Skin Effect in Transmission Line): āĻ¸ā§āĻāĻŋāĻ¨ āĻāĻĢā§āĻā§āĻ āĻāĻ° āĻāĻžāĻ°āĻ¨ā§ āĻ˛āĻžāĻāĻ¨ā§ āĻ°ā§āĻāĻŋāĻ¸ā§āĻā§āĻ¨ā§āĻ¸ āĻŦā§āĻĻā§āĻ§āĻŋ āĻĒāĻžāĻ¯āĻŧ āĻĢāĻ˛ā§ āĻ¯āĻāĻ¨ āĻāĻžāĻ°ā§āĻ¨ā§āĻ āĻĒā§āĻ°āĻŦāĻžāĻšāĻŋāĻ¤ āĻšāĻ¯āĻŧ āĻ¤āĻāĻ¨ āĻ˛āĻ¸āĻ āĻŦā§āĻĻā§āĻ§āĻŋ āĻĒāĻžāĻ¯āĻŧāĨ¤ āĻ˛āĻžāĻāĻ¨ā§āĻ° āĻŦā§āĻ¯āĻžāĻ¸ āĻŦā§āĻĻā§āĻ§āĻŋ āĻĒā§āĻ˛ā§ āĻ¸ā§āĻāĻŋāĻ¨ āĻāĻāĻĢā§āĻā§āĻāĻ āĻŦā§āĻĻā§āĻ§āĻŋ āĻĒāĻžā§āĨ¤ āĻāĻāĻžāĻĄāĻŧāĻž āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ āĻ āĻāĻ¨ā§āĻĄāĻžāĻā§āĻāĻ°ā§āĻ° āĻāĻāĻžāĻ°ā§āĻ° āĻāĻĒāĻ° āĻ¸ā§āĻāĻŋāĻ¨ āĻāĻĢā§āĻā§āĻ āĻ¨āĻŋāĻ°ā§āĻāĻ° āĻāĻ°ā§āĨ¤
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āĻ¸ā§āĻāĻŋāĻ¨ āĻāĻĢā§āĻā§āĻ āĻāĻŽāĻžāĻ¨ā§āĻ° āĻāĻĒāĻžāĻ¯āĻŧ (Way of Reduce the Skin Effect):
ā§§. āĻāĻ¨ā§āĻĄāĻžāĻā§āĻāĻ°ā§āĻ° āĻŦā§āĻ¯āĻžāĻ¸āĻžāĻ°ā§āĻ§ āĻāĻŽāĻŋāĻ¯āĻŧā§āĨ¤
ā§¨. āĻ¨āĻ¨ āĻŽā§āĻ¯āĻžāĻāĻ¨ā§āĻāĻŋāĻ āĻĒāĻĻāĻžāĻ°ā§āĻĨ āĻŦā§āĻ¯āĻŦāĻšāĻžāĻ° āĻāĻ°ā§āĨ¤
ā§Š. āĻĢāĻžāĻĒāĻž āĻ¸āĻŋāĻ˛āĻŋāĻ¨ā§āĻĄāĻžāĻ° āĻāĻā§āĻ¤āĻŋāĻ° āĻāĻ¨ā§āĻāĻžāĻā§āĻāĻ° āĻŦā§āĻ¯āĻŦāĻšāĻžāĻ° āĻāĻ°ā§āĨ¤
ā§Ē. āĻŦā§āĻ¯āĻžāĻ°ā§āĻ˛ āĻāĻā§āĻ¤āĻŋāĻ° āĻāĻ¨ā§āĻāĻžāĻā§āĻāĻ° āĻŦā§āĻ¯āĻŦāĻšāĻžāĻ° āĻāĻ°ā§āĨ¤
ā§Ģ. āĻ¸ā§āĻā§āĻ¯āĻžāĻ¨ā§āĻĄāĻžāĻ°ā§āĻĄ āĻāĻ¨ā§āĻĄāĻžāĻāĻāĻ° āĻŦā§āĻ¯āĻŦāĻšāĻžāĻ° āĻāĻ°ā§āĨ¤
ā§Ŧ. āĻā§āĻ¯āĻžāĻ˛āĻŽā§āĻ¨āĻŋāĻ¯āĻŧāĻžāĻŽ āĻāĻ¨ā§āĻĄāĻžāĻāĻāĻ° āĻŦā§āĻ¯āĻŦāĻšāĻžāĻ° āĻāĻ°ā§āĨ¤
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āĻĒā§āĻ°āĻā§āĻ¸āĻŋāĻŽāĻŋāĻāĻŋ āĻāĻĢā§āĻā§āĻ (Proximity Effect): āĻ¯āĻāĻ¨ āĻāĻāĻāĻŋ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§-āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§āĻ° āĻĒāĻžāĻļā§ āĻāĻ°ā§āĻāĻāĻŋ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§-āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§ āĻĨāĻžāĻā§ āĻ¤āĻāĻ¨ āĻāĻ° āĻĢā§āĻ˛āĻžāĻā§āĻ¸ āĻĒāĻžāĻļā§āĻ° āĻāĻžāĻ°ā§āĻ¨ā§āĻ-āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§āĻ¤ā§ āĻāĻ¨ā§āĻĄāĻŋāĻāĻ¸āĻĄ āĻšāĻ¯āĻŧāĨ¤ āĻāĻ āĻĢā§āĻ˛āĻžāĻā§āĻ¸ āĻāĻ° āĻĢāĻ˛āĻžāĻĢāĻ˛ āĻāĻāĻ¯āĻŧ āĻāĻ¨ā§āĻĄāĻžāĻāĻāĻ°ā§āĻ° āĻĻā§āĻ°āĻŦāĻ°ā§āĻ¤ā§ āĻ
āĻ°ā§āĻ§āĻžāĻāĻļā§āĻ° āĻā§āĻ¯āĻŧā§ āĻ¨āĻŋāĻāĻāĻŦāĻ°ā§āĻ¤ā§ āĻ
āĻ°ā§āĻ§āĻžāĻāĻļā§ āĻŦā§āĻļāĻŋ āĻĻā§āĻāĻž āĻĻā§āĻ¯āĻŧāĨ¤ āĻĢāĻ˛ā§ āĻ
āĻ¸āĻŽ āĻāĻžāĻ°ā§āĻ¨ā§āĻ āĻŦāĻ¨ā§āĻāĻ¨ āĻšāĻ¤ā§ āĻĨāĻžāĻā§ āĻāĻŦāĻ āĻ¸ā§āĻāĻŋāĻ¨ āĻāĻĢā§āĻā§āĻā§āĻ° āĻ¨ā§āĻ¯āĻžā§ āĻ°ā§āĻāĻŋāĻ¸ā§āĻā§āĻ¯āĻžāĻ¨ā§āĻ¸ āĻŦā§āĻĻā§āĻ§āĻŋ āĻĒāĻžāĻ¯āĻŧāĨ¤ āĻāĻ āĻāĻāĻ¨āĻžāĻā§ āĻĒā§āĻ°āĻā§āĻ¸āĻŋāĻŽāĻŋāĻāĻŋ āĻāĻĢā§āĻā§āĻ āĻŦāĻ˛ā§āĨ¤
(āĻŦāĻŋāĻāĻĻā§āĻ°āĻ āĻĒā§āĻ°āĻā§āĻ¸āĻŋāĻŽāĻŋāĻāĻŋ āĻāĻĢā§āĻā§āĻā§āĻ° āĻ¸āĻŽā§ āĻ¯āĻĻāĻŋ āĻāĻā§ āĻāĻžāĻ°ā§āĻ¨ā§āĻ āĻŦāĻšāĻŋāĻ āĻāĻ¨ā§āĻĄāĻžāĻā§āĻāĻ°ā§ āĻĒā§āĻ°āĻŦāĻžāĻšāĻŋāĻ¤ āĻāĻžāĻ°ā§āĻ¨ā§āĻā§āĻ° āĻŦāĻŋāĻĒāĻ°ā§āĻ¤āĻŽā§āĻā§ āĻĨāĻžāĻā§ āĻ¤āĻžāĻšāĻ˛ā§ āĻāĻā§ āĻāĻ¨ā§āĻĄāĻžāĻā§āĻāĻ°ā§āĻ° āĻĒāĻžāĻļāĻžāĻĒāĻžāĻļāĻŋ āĻ¸āĻāĻ¯ā§āĻā§āĻ¤ āĻ
āĻāĻļā§āĻ° āĻĻāĻŋāĻā§ āĻāĻžāĻ°ā§āĻ¨ā§āĻ āĻĄā§āĻ¨āĻ¸āĻŋāĻāĻŋ āĻŦā§āĻĻā§āĻ§āĻŋ āĻĒāĻžā§āĨ¤ āĻāĻ° āĻ¯āĻĻāĻŋ āĻāĻžāĻ°ā§āĻ¨ā§āĻ āĻāĻāĻ āĻĻāĻŋāĻā§ āĻĒā§āĻ°āĻŦāĻžāĻšāĻŋāĻ¤ āĻšā§ āĻ¤āĻžāĻšāĻ˛ā§ āĻĒāĻžāĻļāĻžāĻĒāĻžāĻļāĻŋ āĻ¸ā§āĻĨāĻžāĻĒāĻŋāĻ¤ āĻ
āĻŦāĻ¸ā§āĻĨāĻžā§ āĻāĻā§ āĻāĻ¨ā§āĻĄāĻžāĻā§āĻāĻ°ā§āĻ° āĻĻā§āĻ°āĻŦāĻ°ā§āĻ¤ā§ āĻ
āĻāĻļā§āĻ° āĻĻāĻŋāĻā§ āĻāĻžāĻ°ā§āĻ¨ā§āĻ āĻĄā§āĻ¨āĻ¸āĻŋāĻāĻŋ āĻŦā§āĻĻā§āĻ§āĻŋ āĻĒāĻžā§āĨ¤)
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āĻĒā§āĻ°āĻā§āĻ¸āĻŋāĻŽāĻŋāĻāĻŋ āĻāĻĢā§āĻā§āĻā§āĻ° āĻĒā§āĻ°āĻāĻžāĻŦ (Influence of Proximity Effect):
āĻĒā§āĻ°āĻā§āĻ¸āĻŋāĻŽāĻŋāĻāĻŋ āĻāĻĢā§āĻā§āĻā§āĻ° āĻĒā§āĻ°āĻāĻžāĻŦā§ āĻāĻ¨ā§āĻĄāĻžāĻā§āĻāĻ°ā§ āĻ
āĻ¸āĻŽ āĻāĻžāĻ°ā§āĻ¨ā§āĻ āĻŦāĻ¨ā§āĻāĻ¨ā§āĻ° āĻ¸ā§āĻˇā§āĻāĻŋ āĻšāĻ¯āĻŧ āĻ āĻ°ā§āĻāĻŋāĻ¸ā§āĻā§āĻ¨ā§āĻ¸ āĻŦā§āĻĻā§āĻ§āĻŋ āĻĒāĻžāĻ¯āĻŧ āĻāĻŦāĻ āĻ¸ā§āĻ˛āĻĢ āĻ°āĻŋāĻ¯āĻŧā§āĻ¯āĻžāĻāĻā§āĻ¯āĻžāĻ¨ā§āĻ¸ āĻāĻ° āĻŽāĻžāĻ¨ āĻšā§āĻ°āĻžāĻ¸ āĻĒāĻžāĻ¯āĻŧāĨ¤
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āĻĒā§āĻ°āĻā§āĻ¸āĻŋāĻŽāĻŋāĻāĻŋ āĻāĻĢā§āĻā§āĻ āĻāĻŽāĻžāĻ¨ā§āĻ° āĻāĻĒāĻžāĻ¯āĻŧ (Way of Reduce the Proximity Effect):
ā§§. āĻĢā§āĻ°āĻŋāĻā§āĻ¯āĻŧā§āĻ¨ā§āĻ¸āĻŋ āĻ°ā§āĻā§āĻ āĻāĻŽ āĻ°ā§āĻā§āĨ¤
ā§¨. āĻāĻ¨ā§āĻĄāĻžāĻā§āĻāĻ°ā§āĻ° āĻāĻ¸ā§āĻĒā§āĻ¸āĻŋāĻ āĻŦā§āĻĻā§āĻ§āĻŋ āĻāĻ°ā§āĨ¤
ā§Š. āĻ¸ā§āĻā§āĻ¯āĻžāĻ¨ā§āĻĄāĻžāĻ° āĻāĻ¨ā§āĻĄāĻžāĻāĻāĻ° āĻŦā§āĻ¯āĻŦāĻšāĻžāĻ° āĻāĻ°ā§āĨ¤
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āĻĢā§āĻ°āĻžāĻ¨ā§āĻāĻŋ āĻāĻĢā§āĻā§āĻ (Ferranti Effect): āĻŽāĻžāĻāĻžāĻ°āĻŋ āĻ āĻ˛āĻŽā§āĻŦāĻž āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨ āĻ˛ā§āĻĄ āĻŦāĻŋāĻšā§āĻ¨ āĻ
āĻĨāĻŦāĻž āĻā§āĻŦ āĻ
āĻ˛ā§āĻĒ āĻ˛ā§āĻĄ āĻ¸āĻāĻ¯ā§āĻā§āĻ¤ āĻĨāĻžāĻāĻ˛ā§ āĻāĻāĻāĻŋ āĻ˛āĻŋāĻĄāĻŋāĻ āĻāĻžāĻ°ā§āĻāĻŋāĻ āĻāĻžāĻ°ā§āĻ¨ā§āĻ āĻĒā§āĻ°āĻŦāĻžāĻšā§āĻ° āĻāĻžāĻ°āĻŖā§ āĻĒā§āĻ°ā§āĻ°āĻ¨āĻĒā§āĻ°āĻžāĻ¨ā§āĻ¤ āĻ
āĻĒā§āĻā§āĻˇāĻž āĻā§āĻ°āĻšāĻŖ āĻĒā§āĻ°āĻžāĻ¨ā§āĻ¤ā§ āĻā§āĻ˛ā§āĻā§āĻā§āĻ° āĻŽāĻžāĻ¨ āĻŦā§āĻļāĻŋ āĻšāĻ¤ā§ āĻĻā§āĻāĻž āĻ¯āĻžāĻ¯āĻŧ āĻāĻ āĻĢā§āĻ¨ā§āĻŽā§āĻ¨āĻ¨ āĻā§ āĻĢā§āĻ°āĻžāĻ¨ā§āĻāĻŋ āĻāĻĢā§āĻā§āĻ āĻŦāĻ˛ā§āĨ¤
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āĻĒāĻ°ā§āĻŦ: ā§Š (āĻāĻ āĻĒāĻ°ā§āĻŦā§ āĻĨāĻžāĻāĻā§ āĻāĻāĻžāĻ°āĻšā§āĻĄ āĻ āĻāĻ¨ā§āĻĄāĻžāĻ°āĻā§āĻ°āĻžāĻāĻ¨ā§āĻĄ āĻ˛āĻžāĻāĻ¨ā§āĻ° āĻŦāĻŋāĻ¸ā§āĻ¤āĻžāĻ°āĻŋāĻ¤)
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āĻāĻāĻžāĻ°āĻšā§āĻĄ āĻ˛āĻžāĻāĻ¨ (Overhead Line): āĻāĻāĻžāĻ°āĻšā§āĻĄ āĻ
āĻ°ā§āĻĨāĻ āĻšāĻā§āĻā§ āĻŽāĻžāĻĨāĻžāĻ° āĻāĻĒāĻ°ā§āĨ¤ āĻŽāĻžāĻĨāĻžāĻ° āĻāĻĒāĻ° āĻĻāĻŋāĻ¯āĻŧā§ āĻ¯ā§ āĻ˛āĻžāĻāĻ¨āĻāĻž āĻāĻžāĻ¨āĻž āĻšāĻ¯āĻŧ āĻ¸ā§āĻāĻžāĻ āĻāĻāĻžāĻ°āĻšā§āĻĄ āĻ˛āĻžāĻāĻ¨āĨ¤
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āĻāĻāĻžāĻ°āĻšā§āĻĄ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ (Overhead Transmission): āĻāĻāĻžāĻ°āĻšā§āĻĄ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ā§āĻ° āĻā§āĻˇā§āĻ¤ā§āĻ°ā§ āĻ¸āĻ°ā§āĻŦā§āĻā§āĻ āĻ¸ā§āĻā§āĻ°ā§āĻ¸ āĻĒāĻ°ā§ āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§ āĻ āĻ¨āĻŋāĻāĻā§āĻ°āĻžāĻ˛ā§āĻ° āĻŽāĻ§ā§āĻ¯ā§āĨ¤ āĻ¸ā§āĻāĻ¨ā§āĻ¯ āĻ¸āĻžāĻļā§āĻ°āĻ¯āĻŧā§āĻ° āĻā§āĻˇā§āĻ¤ā§āĻ°ā§ āĻ¸āĻŽ āĻĒāĻžāĻāĻ¯āĻŧāĻžāĻ°, āĻ¸āĻŽāĻĻā§āĻ°āĻ¤ā§āĻŦ, āĻ¸āĻŽāĻ˛āĻ¸ā§ āĻĒāĻžāĻā§āĻžāĻ° āĻĒā§āĻ°ā§āĻ°āĻ¨ā§āĻ° āĻ¨āĻŋāĻŽāĻŋāĻ¤ā§āĻ¤ā§ āĻ¸āĻ°ā§āĻŦā§āĻā§āĻ āĻā§āĻ˛ā§āĻā§āĻ āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§āĻ āĻ¨āĻŋāĻāĻā§āĻ°āĻžāĻ˛ āĻ¤āĻžāĻ°ā§āĻ° āĻ¤āĻžāĻ° āĻŽāĻ§ā§āĻ¯ā§ āĻŦāĻŋāĻŦā§āĻāĻ¨āĻž āĻāĻ°āĻž āĻāĻžāĻ˛ā§āĨ¤
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āĻĒā§āĻ°āĻ§āĻžāĻ¨ āĻŦāĻŋāĻŦā§āĻā§āĻ¯ āĻŦāĻŋāĻˇā§āĻā§āĻ˛ā§ (Main consideration) : Cost, Life, Brittle, Weight, Resistance, Power loss, Tensil strength, Low specific-gravity, Temperature Co-efficient, shorter Sag.
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āĻāĻāĻžāĻ° āĻšā§āĻĄ āĻ˛āĻžāĻāĻ¨ā§ āĻŦā§āĻ¯āĻŦāĻšā§āĻ¤ āĻĒā§āĻ°āĻ§āĻžāĻ¨ āĻ
āĻāĻļ āĻ¸āĻŽā§āĻš āĻšāĻ˛ā§(Equipment of overheadline):
1. Conductor.
2. Supports.
3. Insulator.
4. Cross arms.
5. Others-phase plates.
6. Danger plate.
7. Lighting arrestors.
8. Anti-climbing wires.
9. Ground wires.
10. Bird guards.
11. Vibration damper.
12. Jumpers.
13. Fuses & Isolating switch.
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āĻāĻāĻžāĻ° āĻšā§āĻĄ āĻ˛āĻžāĻāĻ¨ā§ āĻŦā§āĻ¯āĻŦāĻšā§āĻ¤ āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§ āĻā§āĻ˛ā§ āĻšāĻ˛ā§ (Conductors of overhead line):
1. Hard Drawn Copper.
2. Cadmium copper conductor.
3. Steel cored copper conductor.
4. Copper weld conductor.
5. Aluminium.
6. Hard drawn Aluminum.
7. All aluminum conductor.
8. All aluminum alloy conductor.
9. Aluminum conductor steel reinforced. (ASCR) (ACCC)
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āĻāĻāĻžāĻ°āĻšā§āĻĄ āĻ˛āĻžāĻāĻ¨ā§ āĻŦā§āĻ¯āĻŦāĻšā§āĻ¤ āĻ¸āĻžāĻĒā§āĻ āĻā§āĻ˛āĻŋ āĻšāĻ˛ (Supports of overhead line):
1. Wooden poles. (A type, H type, T type)
2. Renforced concrete poleas. (11KV, 22KV, 33KV)
3. Tubular poles. (33KV)
4. Latticed poles. ( 33KV)
5. Griders. (33KV)
6. Rails (66KV, H frame)
7. Towers. (Narrow or board base type)
â
āĻ˛āĻžāĻāĻ¨ āĻ¸āĻžāĻĒā§āĻ°ā§āĻā§ āĻ¯ā§ āĻ¸āĻŽāĻ¸ā§āĻ¤ āĻā§āĻŖāĻžāĻŦāĻ˛ā§ āĻ¸āĻŽā§āĻš āĻĨāĻžāĻāĻž āĻāĻāĻŋāĻ¤ (essential qualities of line support):
ā§§. āĻ¯āĻžāĻ¨ā§āĻ¤ā§āĻ°āĻŋāĻāĻāĻžāĻŦā§ āĻļāĻā§āĻ¤ āĻ āĻŽāĻāĻŦā§āĻ¤
ā§¨.āĻāĻāĻ¨ā§ āĻšāĻžāĻ˛āĻāĻž
ā§Š. āĻĻāĻžāĻŽā§ āĻ¸āĻ¸ā§āĻ¤āĻž āĻ āĻĻā§āĻ°ā§āĻāĻ¸ā§āĻĨāĻžāĻ¯āĻŧā§
ā§Ē. āĻ°āĻā§āĻˇāĻŖāĻžāĻŦā§āĻā§āĻˇāĻŖ āĻāĻ°āĻ āĻāĻŽ āĻšāĻāĻ¯āĻŧāĻž āĻāĻāĻŋāĻ¤
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āĻāĻāĻžāĻ° āĻšā§āĻĄ āĻ˛āĻžāĻāĻ¨ā§ āĻŦā§āĻ¯āĻŦāĻšā§āĻ¤ āĻāĻ¨ā§āĻ¸ā§āĻ˛ā§āĻāĻ° (Insulators of overhead line):
1. Pin type.
2. Suspension/Disc type.
3. Strain type.
4. Shecle type.
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āĻāĻ¨āĻ¸ā§āĻ˛ā§āĻāĻ° āĻāĻ° āĻāĻĒāĻžāĻĻāĻžāĻ¨ ( Elements of insulator) : āĻāĻŋāĻ¨āĻžāĻŽāĻžāĻāĻŋ, āĻā§āĻ˛āĻžāĻ¸, āĻ¸ā§āĻāĻŋā§ā§āĻāĻžāĻāĻ, āĻĒāĻžāĻāĻ°ā§āĻā§āĻ¸āĨ¤ āĻ¤āĻŦā§ āĻ¸āĻŦāĻā§āĻ¯āĻŧā§ āĻāĻ¤ā§āĻ¤āĻŽ āĻāĻ¨ā§āĻ¸ā§āĻ°ā§āĻ° āĻāĻĒāĻžāĻĻāĻžāĻ¨ āĻšāĻ˛ā§ āĻāĻāĻāĻā§ āĻāĻŋāĻ¨āĻžāĻŽāĻžāĻāĻŋāĨ¤
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āĻāĻ¨ā§āĻ¸ā§āĻ˛ā§āĻāĻ°ā§āĻ° āĻā§āĻŖāĻžāĻŦāĻ˛ā§ āĻ¸āĻŽā§āĻš (Qualities of Insulator) : āĻ¯āĻžāĻ¨ā§āĻ¤ā§āĻ°āĻŋāĻāĻāĻžāĻŦā§ āĻļāĻā§āĻ¤ āĻ āĻŽāĻāĻŦā§āĻ¤, āĻāĻā§āĻāĻŽāĻžāĻ¨ā§āĻ° āĻŦā§āĻĻā§āĻ¯ā§āĻ¤āĻŋāĻ āĻ°ā§āĻ§ āĻ¸āĻŽā§āĻĒāĻ¨ā§āĻ¨, āĻāĻā§āĻ āĻŽāĻžāĻ¨āĻ¸āĻŽā§āĻĒāĻ¨ā§āĻ¨ āĻ°āĻŋāĻ˛ā§āĻāĻŋāĻ āĻĒāĻžāĻ°āĻŽāĻŋāĻāĻŋāĻāĻŋāĻāĻŋ, āĻĒāĻžāĻāĻāĻžāĻ° āĻ¸ā§āĻā§āĻ°ā§āĻā§āĻĨ āĻ āĻ¸ā§āĻĒāĻžāĻ°ā§āĻ āĻāĻāĻžāĻ° āĻā§āĻ˛ā§āĻā§āĻ āĻāĻ° āĻ
āĻ¨ā§āĻĒāĻžāĻ¤ āĻāĻā§āĻāĻŽāĻžāĻ¨āĻ¸āĻŽā§āĻĒāĻ¨ā§āĻ¨āĨ¤
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āĻāĻāĻžāĻ° āĻšā§āĻĄ āĻ˛āĻžāĻāĻ¨ā§ āĻāĻāĻžāĻ° āĻā§āĻ˛ā§āĻā§āĻ āĻ¤ā§āĻ°āĻŋ āĻšāĻāĻ¯āĻŧāĻžāĻ° āĻ
āĻā§āĻ¯āĻ¨ā§āĻ¤āĻ°ā§āĻŖ āĻāĻžāĻ°āĻŖ āĻšāĻ˛ā§:
āĻ°ā§āĻā§āĻ¨ā§āĻ¨ā§āĻ¸ āĻāĻ° āĻāĻ¨ā§āĻ¯,
āĻ¸ā§āĻāĻāĻŋāĻ āĻ
āĻĒāĻžāĻ°ā§āĻļāĻ¨,
āĻāĻ¨ā§āĻ¸ā§āĻ˛ā§āĻļāĻ¨ āĻ¨āĻˇā§āĻ āĻšāĻā§āĻž,
āĻāĻ°ā§āĻĨāĻŋāĻ āĻ
āĻ°ā§āĻĨāĨ¤
â
āĻāĻāĻžāĻ° āĻšā§āĻĄ āĻ˛āĻžāĻāĻ¨ā§ āĻāĻāĻžāĻ° āĻā§āĻ˛ā§āĻā§āĻ āĻā§āĻĒāĻ¨ā§āĻ¨ āĻšāĻāĻ¯āĻŧāĻžāĻ° āĻŦāĻžāĻšā§āĻ¯āĻŋāĻ āĻāĻžāĻ°āĻ¨ āĻšāĻ˛:
āĻĄāĻžāĻāĻ°ā§āĻā§āĻ āĻ˛āĻžāĻāĻā§āĻ¨āĻŋāĻ āĻ¸ā§āĻāĻāĨ¤
āĻāĻ˛ā§āĻāĻā§āĻ°āĻŋāĻ āĻāĻ¨ā§āĻĄāĻžāĻāĻļāĻ¨āĨ¤
â
āĻāĻāĻžāĻ°āĻšā§āĻĄ āĻĒāĻĻā§āĻ§āĻ¤āĻŋāĻ° āĻ¸ā§āĻŦāĻŋāĻ§āĻž āĻ
āĻ¸ā§āĻŦāĻŋāĻ§āĻž (Advantage and disadvantage of overhead line): āĻāĻ¨ āĻ¨āĻŋāĻ°āĻžāĻĒāĻ¤ā§āĻ¤āĻž āĻāĻŽ, āĻĒā§āĻ°āĻžāĻĨāĻŽāĻŋāĻ āĻāĻ°āĻ āĻāĻŽ, āĻ¸āĻŋāĻ¸ā§āĻā§āĻŽāĻ° āĻ¨āĻŽāĻ¨ā§ā§āĻ¤āĻž āĻŦā§āĻļāĻŋ, āĻĢāĻ˛ā§āĻ āĻāĻ° āĻĒāĻ°āĻŋāĻŽāĻžāĻ¨ āĻŦā§āĻļāĻŋ, āĻĢāĻ˛ā§āĻ āĻāĻŋāĻšā§āĻ¨āĻŋāĻ¤āĻāĻ°āĻŖ āĻ āĻŽā§āĻ°āĻžāĻŽāĻ¤ āĻāĻ°āĻž āĻ¸āĻšāĻ, āĻāĻžāĻ°ā§āĻ¨ā§āĻ āĻā§āĻ¯āĻžāĻĒāĻžāĻ¸āĻŋāĻāĻŋ āĻŦā§āĻļāĻŋ, āĻ¨āĻŋāĻāĻāĻŦāĻ°ā§āĻ¤ā§ āĻāĻŽā§āĻ¯ā§āĻ¨āĻŋāĻā§āĻļāĻ¨ āĻ¸āĻžāĻ°ā§āĻāĻŋāĻā§ āĻŦāĻžāĻ§āĻžāĻŦāĻŋāĻā§āĻ¨ āĻ āĻ¨āĻ¯āĻŧā§āĻā§āĻ° āĻ¸ā§āĻˇā§āĻāĻŋ āĻāĻ°ā§āĨ¤
â
āĻ¸ā§āĻĢāĻāĻŋ āĻĢā§āĻ¯āĻžāĻā§āĻāĻ° (safety factor): Puncture strength & Flash over voltage āĻāĻ° āĻ
āĻ¨ā§āĻĒāĻžāĻ¤āĻā§ āĻ¸ā§āĻĢāĻāĻŋ āĻĢā§āĻ¯āĻžāĻā§āĻāĻ° āĻŦāĻ˛ā§āĨ¤
â
āĻ¸ā§āĻā§āĻ°āĻŋāĻ āĻĻāĻā§āĻˇāĻ¤āĻž (String efficiency): āĻ¸ā§āĻā§āĻ°āĻŋāĻ āĻāĻ° āĻŽā§āĻ āĻā§āĻ˛ā§āĻā§āĻ āĻāĻŦāĻ āĻĄāĻŋāĻ¸ā§āĻā§āĻ° āĻ¸āĻāĻā§āĻ¯āĻž āĻā§āĻ¨ā§āĻ¤āĻ āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§āĻ° āĻ¸āĻŦāĻā§ā§ā§ āĻ¨āĻŋāĻāĻāĻŦāĻ°ā§āĻ¤ā§ āĻĄāĻŋāĻ¸ā§āĻā§āĻ° āĻā§āĻžāĻā§āĻŋāĻ¤ā§ āĻā§āĻ˛ā§āĻā§āĻā§āĻ° āĻ
āĻ¨ā§āĻĒāĻžāĻ¤āĻā§ āĻ¸ā§āĻā§āĻ°āĻŋāĻ āĻĻāĻā§āĻˇāĻ¤āĻž āĻŦāĻ˛ā§āĨ¤
â
āĻ¸ā§āĻ¯āĻžāĻ (Sag): āĻ¯ā§ āĻā§āĻ¨ā§ āĻāĻžāĻā§āĻžāĻ° āĻĻā§āĻāĻāĻŋāĻ° āĻ¯ā§ āĻŦāĻŋāĻ¨ā§āĻĻā§āĻ¤ā§ āĻ¤āĻžāĻ° āĻāĻžāĻ¨āĻž āĻŦāĻž āĻ¸āĻāĻ¯ā§āĻ āĻāĻ°āĻž āĻšā§ āĻ¸ā§ āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻĻā§āĻāĻŋāĻ° āĻ¸āĻāĻ¯ā§āĻāĻ¨āĻāĻžāĻ°ā§ āĻāĻ¨ā§āĻā§āĻŽāĻŋāĻ āĻāĻ˛ā§āĻĒāĻ¨āĻŋāĻ āĻ°ā§āĻāĻž āĻšāĻ¤ā§ āĻ¤āĻžāĻ°ā§āĻ° āĻ¸āĻ°ā§āĻŦā§āĻā§āĻ āĻā§āĻ˛ā§ āĻĒā§āĻž āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻĒāĻ°ā§āĻ¯āĻ¨ā§āĻ¤ āĻĻā§āĻ°ā§āĻ¤ā§āĻŦāĻā§ āĻā§āĻ˛ āĻŦāĻž āĻ¸ā§āĻ¯āĻžāĻ āĻŦāĻ˛ā§āĨ¤ āĻ
āĻ°ā§āĻĨāĻžā§ āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§āĻ° āĻ¸āĻ°ā§āĻŦāĻ¨āĻŋāĻŽā§āĻ¨ āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻāĻŦāĻ āĻ¸āĻžāĻĒā§āĻ°ā§āĻāĻĻā§āĻŦā§ā§āĻ° āĻ¸āĻŽāĻ¤āĻ˛ā§āĻ° āĻĒāĻžāĻ°ā§āĻĨāĻā§āĻ¯āĻā§ āĻ¸ā§āĻ¯āĻžāĻ āĻŦāĻž āĻā§āĻ˛ āĻŦāĻ˛āĻž āĻšā§āĨ¤
______________________________________
â
āĻāĻ¨ā§āĻĄāĻžāĻ° āĻā§āĻ°āĻžāĻāĻ¨ā§āĻĄ āĻ˛āĻžāĻāĻ¨ (Underground line): āĻ¯ā§ āĻŽāĻžāĻāĻŋāĻ° āĻ¨āĻŋāĻ āĻĻāĻŋā§ā§ āĻ¯ā§ āĻ˛āĻžāĻāĻ¨ āĻāĻžāĻ¨āĻž āĻšā§ āĻ¤āĻžāĻ āĻāĻ¨ā§āĻĄāĻžāĻ°āĻā§āĻ°āĻžāĻāĻ¨ā§āĻĄ āĻ˛āĻžāĻāĻ¨āĨ¤
āĻĒāĻžāĻā§āĻžāĻ° āĻ¯āĻĒāĻāĻ¨ āĻāĻ¨ā§āĻĄāĻžāĻ° āĻā§āĻ°āĻžāĻāĻ¨ā§āĻĄ āĻā§āĻ¯āĻžāĻŦāĻ˛ā§āĻ° āĻŽāĻžāĻ§ā§āĻ¯āĻŽā§ āĻĒāĻ°āĻŋāĻŦāĻšāĻ¨ āĻāĻ°āĻž āĻšā§ āĻ¤āĻāĻ¨ āĻĻā§āĻ āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§āĻ° āĻāĻ¨ā§āĻ¸ā§āĻ˛ā§āĻļāĻ¨ā§āĻ° āĻāĻĒāĻ° āĻŦā§āĻļā§ āĻāĻžāĻĒ āĻĒā§ā§āĨ¤ āĻāĻā§āĻˇā§āĻ¤ā§āĻ°ā§ āĻ¤āĻžāĻŽāĻžāĻ° āĻ¸āĻžāĻļā§āĻ°ā§ā§āĻ° āĻāĻ¨ā§āĻ¯ āĻĻā§āĻ āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§āĻ° āĻŽāĻ§ā§āĻ¯ā§ āĻ¸āĻ°ā§āĻŦā§āĻā§āĻ āĻā§āĻ˛ā§āĻā§āĻ āĻŦāĻŋāĻŦā§āĻāĻ¨āĻž āĻāĻ°āĻž āĻšā§āĨ¤
â
āĻāĻ¨ā§āĻĄāĻžāĻ°āĻā§āĻ°āĻžāĻāĻ¨ā§āĻĄ āĻā§āĻ¯āĻžāĻŦāĻ˛ (Underground Cable):
1. Low tension. (max 1KV).
2. High tension. (Max 11KV)
3. Super tension. (Max 33KV)
4. Extra High tension. (Max 66KV)
5. Extra super tension. (Max 132KV)
On the other hand:
1. Oil filled cable. (Single core oil filled cable used up to 132KV, Three core oil filled cable used up to 66KV)
A. Self contained circular type.
B. Self conteined flat type.
C. Pipe type.
3. Gas paessure cables. (External pressure cables, Internal pressure cable)
â
āĻāĻāĻāĻŋ āĻāĻ¨ā§āĻĄāĻžāĻ°āĻā§āĻ°āĻžāĻāĻ¨ā§āĻĄ āĻā§āĻ¯āĻžāĻŦāĻ˛ā§āĻ° āĻŦāĻŋāĻļā§āĻˇ āĻ
āĻāĻļāĻā§āĻ˛ā§ āĻšāĻ˛ā§(parts of underground cable):
1. Serving.
2. Armouring.
3. Bedding.
4. Lead sheath.
5. Paper insulation.
6. Conductor.
â
āĻāĻ¨ā§āĻĄāĻžāĻ°āĻā§āĻ°āĻžāĻāĻ¨ā§āĻĄ āĻ˛āĻžāĻāĻ¨ā§āĻ° āĻŦāĻŋāĻļā§āĻˇ āĻ¸ā§āĻŦāĻŋāĻ§āĻž (Special advantage of underground line):
> āĻĻā§āĻļā§āĻ¯āĻŽāĻžāĻ¨ āĻ¨ā§ āĻŦāĻ˛ā§ āĻĒāĻ°āĻŋāĻŦā§āĻļā§ āĻŦā§āĻ¯āĻāĻžāĻ¤ āĻ¸ā§āĻˇā§āĻāĻŋ āĻāĻ°ā§āĻ¨āĻžāĨ¤
> āĻ˛ā§ āĻāĻāĻŽāĻāĻĢ
> āĻāĻ°ā§āĻ¨āĻž āĻĄāĻŋāĻ¸āĻāĻžāĻ°ā§āĻ āĻ¨ā§āĻāĨ¤
> āĻŦā§āĻļ āĻĢāĻžā§āĻžāĻ° āĻāĻā§āĻ¨āĻžāĨ¤
> āĻŦāĻā§āĻ°āĻĒāĻžāĻ¤ āĻāĻ¨āĻŋāĻ¤ āĻā§āĻ¨ā§ āĻ¸āĻŽāĻ¸ā§āĻ¯āĻž āĻšā§āĻ¨āĻžāĨ¤
> āĻ¸āĻ°ā§āĻŦā§āĻā§āĻ āĻāĻ¨āĻ¨āĻŋāĻ°āĻžāĻĒāĻ¤ā§āĻ¤āĻž āĻŦāĻāĻžā§ āĻ°āĻžāĻā§
> āĻāĻ°ā§āĻŽāĻĻāĻā§āĻˇāĻ¤āĻž āĻāĻžāĻ˛ā§āĨ¤
> āĻŦā§āĻˇā§āĻāĻŋ, āĻ¤ā§āĻˇāĻžāĻ°āĻĒāĻžāĻ¤, āĻ§ā§ā§āĻž, āĻŦāĻā§āĻ°āĻĒāĻžāĻ¤ āĻ¸āĻš āĻ¯ā§āĻā§āĻ¨ā§ āĻĒā§āĻ°āĻžāĻā§āĻ¤āĻŋāĻ āĻĻā§āĻ°ā§āĻ¯ā§āĻā§ āĻŦā§āĻļā§ āĻ¨āĻŋāĻ°ā§āĻāĻ°āĻ¯ā§āĻā§āĻ¯āĨ¤
> āĻā§āĻ°āĻŋ āĻšāĻā§āĻžāĻ° āĻā§āĻ¨ā§ āĻ¸āĻŽā§āĻāĻŦāĻ¨āĻž āĻ¨āĻžāĻāĨ¤
> āĻŽā§āĻ¨ā§āĻā§āĻāĻ¨ā§āĻ¨ā§āĻ¸ āĻāĻ°āĻ āĻāĻŽāĨ¤
> āĻāĻžā§āĻāĻž āĻ
āĻĒāĻā§ āĻšā§āĻ¨āĻžāĨ¤
> āĻā§āĻŽāĻŋ āĻāĻŦāĻ āĻāĻŦāĻ¨ā§āĻ° āĻā§āĻ¯āĻžāĻ˛ā§ āĻāĻŽāĻžā§ āĻ¨āĻžāĨ¤
> āĻāĻā§āĻ āĻ¨āĻŋāĻ°ā§āĻāĻ°āĻ¯ā§āĻā§āĻ¯ āĻāĻŦāĻ āĻĒā§āĻ°āĻžāĻĒā§āĻ¯āĻ¤āĻžāĻ° āĻ¨āĻŋāĻļā§āĻāĻŋāĻ¤ āĻāĻ āĻ¸āĻŋāĻ¸ā§āĻā§āĻŽāĨ¤
â
āĻāĻ¨ā§āĻĄāĻžāĻ°āĻā§āĻ°āĻžāĻāĻ¨ā§āĻĄ āĻ˛āĻžāĻāĻ¨ā§āĻ° āĻ
āĻ¸ā§āĻŦāĻŋāĻ§āĻž (Disadvantage of Underground line):
> Primary cost is very high. (need 5X to 10X extra in compare of overhead line)
> Fault identification and maintenance is very difficult.
> Low current capacity.
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āĻĒāĻ°ā§āĻŦ: ā§Ē (āĻāĻ āĻĒāĻ°ā§āĻŦā§ āĻĨāĻžāĻāĻā§ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ā§āĻ° āĻŦāĻŋāĻ¸ā§āĻ¤āĻžāĻ°āĻŋāĻ¤)
āĻ¸āĻžāĻŦ āĻ¸ā§āĻā§āĻļāĻ¨ (Sub-station): āĻŦā§āĻĻā§āĻ¯ā§āĻ¤āĻŋāĻ āĻ¸āĻ°āĻŦāĻ°āĻžāĻš āĻŦā§āĻ¯āĻŦāĻ¸ā§āĻĨāĻžāĻ¯āĻŧ āĻāĻĒāĻā§āĻ¨ā§āĻĻā§āĻ° āĻ¸āĻ°āĻā§āĻāĻžāĻŽāĻžāĻĻāĻŋāĻ° āĻŦā§āĻ¯āĻŦāĻ¸ā§āĻĨāĻžāĻĒāĻ¨āĻž āĻ¯āĻžāĻšāĻž āĻŦāĻŋāĻāĻŋāĻ¨ā§āĻ¨ āĻĒā§āĻ°āĻāĻžāĻ° āĻŦā§āĻļāĻŋāĻˇā§āĻā§āĻ¯ āĻ¯ā§āĻŽāĻ¨ āĻā§āĻ˛ā§āĻā§āĻ, āĻāĻ¸āĻŋ āĻā§ āĻĄāĻŋāĻ¸āĻŋ, āĻĢā§āĻ°āĻŋāĻā§āĻ¯āĻŧā§āĻ¨ā§āĻ¸āĻŋ, āĻĒāĻžāĻāĻ¯āĻŧāĻžāĻ° āĻĢā§āĻ¯āĻžāĻā§āĻāĻ°, āĻĒā§āĻ°āĻā§āĻ¤āĻŋāĻ° āĻĒāĻ°āĻŋāĻŦāĻ°ā§āĻ¤āĻ¨ā§āĻ° āĻ¸āĻžāĻšāĻžāĻ¯ā§āĻ¯ āĻāĻ°ā§ āĻĨāĻžāĻā§āĨ¤ āĻāĻ āĻ§āĻ°āĻ¨ā§āĻ° āĻā§āĻ¨ā§āĻĻā§āĻ°āĻā§ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻŦāĻ˛āĨ¤
āĻŦāĻŋāĻĻā§āĻ¯ā§ā§ āĻā§āĻĒāĻžāĻĻāĻ¨ āĻā§āĻ¨ā§āĻĻā§āĻ° āĻāĻŦāĻ āĻā§āĻ°āĻžāĻšāĻā§āĻ° āĻŽāĻžāĻāĻāĻžāĻ¨ā§ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻāĻāĻāĻŋ āĻŽāĻžāĻ§ā§āĻ¯āĻŽāĻŋāĻā§ āĻ¸ā§āĻā§āĻļāĻ¨ āĻ¯ā§āĻāĻžāĻ¨ā§ āĻŦā§āĻĻā§āĻ¯ā§āĻ¤āĻŋāĻ āĻ¯āĻ¨ā§āĻ¤ā§āĻ°āĻĒāĻžāĻ¤āĻŋāĻ° āĻ¸āĻžāĻšāĻžāĻ¯ā§āĻ¯ā§ āĻāĻāĻžāĻ§āĻŋāĻ āĻĢāĻŋāĻĄāĻžāĻ°ā§āĻ° āĻŽāĻžāĻ§ā§āĻ¯āĻŽā§ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§ āĻļāĻā§āĻ¤āĻŋ āĻā§ āĻā§āĻ°āĻšāĻŖ āĻāĻ°ā§ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻĢāĻ°āĻŽāĻžāĻ°ā§āĻ° āĻ¸āĻžāĻšāĻžāĻ¯ā§āĻ¯ā§ āĻŦāĻŋāĻāĻŋāĻ¨ā§āĻ¨ āĻŽāĻžāĻ¨ā§āĻ° āĻ¸āĻ°āĻŦāĻ°āĻžāĻš āĻā§āĻ˛ā§āĻā§āĻā§ āĻ°ā§āĻĒāĻžāĻ¨ā§āĻ¤āĻ° āĻāĻ°āĻž āĻšāĻ¯āĻŧāĨ¤
āĻ¸āĻžāĻŦ āĻ¸ā§āĻā§āĻļāĻ¨ā§āĻ° āĻā§āĻ°ā§āĻ¤ā§āĻŦ (Importance of Sub-station):
ā§§. āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ āĻ¸āĻžāĻŦ āĻ¸ā§āĻā§āĻļāĻ¨ā§āĻ° āĻŽāĻ§ā§āĻ¯ā§ āĻĒāĻžāĻāĻ¯āĻŧāĻžāĻ° āĻšāĻžāĻāĻā§ āĻā§āĻĒāĻžāĻĻāĻŋāĻ¤ āĻŽāĻŋāĻĄāĻŋāĻ¯āĻŧāĻžāĻŽ āĻā§āĻ˛ā§āĻā§āĻāĻā§ āĻāĻā§āĻ āĻā§āĻ˛ā§āĻā§āĻā§ āĻŦā§āĻĻā§āĻ§āĻŋ āĻāĻ°ā§ āĻĻā§āĻ°ā§ āĻĒā§āĻ°āĻžāĻ¨ā§āĻ¤ā§ āĻĒā§āĻ°ā§āĻ°āĻŖ āĻāĻ°āĻž āĻ¯āĻžāĻ¯āĻŧāĨ¤
ā§¨. āĻ¸āĻžāĻŦ āĻˇā§āĻā§āĻļāĻ¨ā§āĻ° āĻŽāĻžāĻ§ā§āĻ¯āĻŽā§ āĻĒāĻžāĻāĻ¯āĻŧāĻžāĻ° āĻĢā§āĻ¯āĻžāĻā§āĻāĻ° āĻāĻ¨ā§āĻ¨āĻ¤āĻŋ āĻāĻ°āĻž āĻ¯āĻžā§āĨ¤
ā§Š. āĻĢā§āĻ°āĻŋāĻā§ā§ā§āĻ¨ā§āĻ¸ā§ āĻĒāĻ°āĻŋāĻŦāĻ°ā§āĻ¤āĻ¨ āĻāĻ°āĻžāĻ° āĻāĻ¨ā§āĻ¯ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ā§āĻ° āĻĒā§āĻ°āĻ¯āĻŧā§āĻāĻ¨ āĻšāĻ¯āĻŧāĨ¤
ā§Ē. āĻāĻ¸āĻŋ āĻā§ āĻĄāĻŋāĻ¸āĻŋ āĻŦāĻž āĻĄāĻŋāĻ¸āĻŋ āĻā§ āĻāĻ¸āĻŋ āĻ¤ā§ āĻĒāĻ°āĻŋāĻŦāĻ°ā§āĻ¤āĻ¨ āĻāĻ°āĻžāĻ° āĻāĻ¨ā§āĻ¯ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ā§āĻ° āĻĒā§āĻ°āĻ¯āĻŧā§āĻāĻ¨ āĻšāĻ¯āĻŧāĨ¤
ā§Ģ. āĻ¸ā§āĻāĻāĻŋāĻ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ā§āĻ° āĻŽāĻžāĻ§ā§āĻ¯āĻŽā§ āĻāĻ¨āĻāĻžāĻŽāĻŋāĻ āĻāĻŦāĻ āĻāĻāĻāĻā§āĻ¯āĻŧāĻŋāĻ āĻ˛āĻžāĻāĻ¨ā§ āĻ¸ā§āĻāĻāĻŋāĻ āĻ
āĻĒāĻžāĻ°ā§āĻļāĻ¨ā§ āĻ¸āĻŽā§āĻĒā§āĻ°ā§āĻŖ āĻāĻ°āĻž āĻšāĻ¯āĻŧāĨ¤
ā§Ŧ. āĻšāĻžāĻ āĻā§āĻ˛ā§āĻā§āĻ āĻ āĻ˛ā§ āĻā§āĻ˛ā§āĻā§āĻ āĻ¸ā§āĻāĻ āĻāĻŋāĻ¯āĻŧāĻžāĻ°, āĻ¸āĻžāĻ°ā§āĻāĻŋāĻ āĻŦā§āĻ°ā§āĻāĻžāĻ°, āĻāĻāĻ¸ā§āĻ˛ā§āĻāĻ°, āĻ°āĻŋāĻ˛ā§ āĻāĻ¤ā§āĻ¯āĻžāĻĻāĻŋ āĻ¸ā§āĻĨāĻžāĻĒāĻ¨ā§āĻ° āĻāĻ¨ā§āĻ¯ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻĒā§āĻ°āĻ¯āĻŧā§āĻāĻ¨ āĻšāĻ¯āĻŧāĨ¤
āĻāĻ¨āĻĄā§āĻ° āĻāĻŦāĻ āĻāĻāĻāĻĄā§āĻ° āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ā§āĻ° āĻāĻĒāĻžāĻĻāĻžāĻ¨ (Elements of indoor and outdoor Sub-station):
1. Primary breaking devices.
2. Transformer and its secondary switching device.
3. Switchgear lineup.
4. Lighting arrester.
5. Isolator.
6. Instrument transformer.
7. Power Transformer.
8. DC supply unit.
9. Panel board.
10. Control desk.
11. Earthing switch.
12. Relay.
13. Metres and instruments.
14. Transducer and SCADA.
15. Cables and bus ducts
16. Control and communication wire/cables and many more...
āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻ¸ā§āĻĨāĻžāĻĒāĻ¨ā§ āĻŽā§āĻ˛ āĻŦāĻŋāĻŦā§āĻā§āĻ¯ āĻŦāĻŋāĻˇā§ (Main consideration of build a Sub-station):
1. Primary voltage.
2. Secondary voltage.
3. Location.
4. Transformer type.
5. Primary breaking device type.
6. Secondary switching device type.
āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ā§āĻ° āĻĒā§āĻ°āĻāĻžāĻ° (kinds of Sub-station):
1. Transmission substation: āĻāĻ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ ā§¨ āĻ
āĻĨāĻŦāĻž āĻ¤āĻžāĻ° āĻ
āĻ§āĻŋāĻ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛āĻžāĻāĻ¨āĻā§ āĻ¸āĻāĻ¯ā§āĻā§āĻ¤ āĻāĻ°ā§āĨ¤ āĻāĻ āĻ§āĻ°āĻ¨ā§āĻ° āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻšāĻžāĻ āĻā§āĻ˛ā§āĻā§āĻ āĻ¸ā§āĻāĻ āĻŦā§āĻ¯āĻŦāĻšāĻžāĻ° āĻāĻ°ā§ āĻ˛āĻžāĻāĻ¨āĻā§ āĻ¸āĻāĻ¯ā§āĻā§āĻ¤ āĻ°āĻžāĻāĻžāĻ° āĻāĻ¨ā§āĻ¯ āĻāĻāĻ¸ā§āĻ˛ā§āĻāĻ° āĻĨāĻžāĻā§ āĻĢāĻ˛ā§āĻ āĻĻā§āĻ°āĻāĻ°āĻ¨ āĻ āĻŽā§āĻ°āĻžāĻŽāĻ¤ā§āĻ° āĻāĻ¨ā§āĻ¯āĨ¤ āĻāĻ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻĻā§āĻāĻāĻŋ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻā§āĻ˛ā§āĻā§āĻāĻā§ āĻāĻ¨āĻāĻžāĻ°ā§āĻ āĻāĻ°āĻžāĻ° āĻāĻ¨ā§āĻ¯ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻĢāĻ°āĻŽāĻžāĻ° āĻŦā§āĻ¯āĻŦāĻŋāĻšāĻžāĻ° āĻāĻ°ā§ā§ˇ āĻā§āĻ˛ā§āĻā§āĻ āĻāĻ¨ā§āĻā§āĻ°ā§āĻ˛ā§āĻ° āĻāĻ¨ā§āĻ¯ āĻā§āĻ¯āĻžāĻĒāĻžāĻ¸āĻŋāĻāĻ°, āĻ°āĻŋā§ā§āĻā§āĻāĻ° āĻ
āĻĨāĻŦāĻž āĻ¸ā§āĻā§āĻāĻŋāĻ VAR āĻŦā§āĻ¯āĻŦāĻšāĻžāĻ° āĻāĻ°ā§, āĻāĻāĻžāĻ¨āĻāĻžāĻ° āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻĢāĻ°āĻŽāĻžāĻ° āĻĢā§āĻ āĻļāĻŋāĻĢāĻāĻŋāĻ āĻāĻ° āĻŽāĻ¤ āĻāĻžāĻāĻ āĻāĻ°ā§ āĻĨāĻžāĻā§āĨ¤
2. terminal substation: āĻāĻžāĻ°ā§āĻŽāĻŋāĻ¨āĻžāĻ˛ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻāĻŽāĻ¨ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻ¯āĻž āĻĒāĻžāĻā§āĻžāĻ° āĻ¸āĻ°āĻŦāĻ°āĻžāĻšā§āĻ° āĻāĻā§āĻŦāĻžāĻ°ā§ āĻļā§āĻˇ āĻĒā§āĻ°āĻžāĻ¨ā§āĻ¤ā§ āĻ
āĻŦāĻ¸ā§āĻĨāĻžāĻ¨ āĻāĻ°ā§āĨ¤
3. Transformer substation: āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻĢāĻ°āĻŽāĻžāĻ° āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻāĻŽāĻ¨ āĻāĻāĻāĻŋ āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻ¯ā§āĻāĻžāĻ¨ā§ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻā§āĻ˛ā§āĻā§āĻ āĻ˛ā§āĻā§āĻ˛āĻā§ āĻ¸ā§āĻā§āĻĒ āĻĄāĻžāĻāĻ¨ āĻāĻ°āĻž āĻšā§, āĻāĻ°āĻĒāĻ° āĻāĻāĻžāĻā§ āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻ˛ā§āĻā§āĻ˛ā§ āĻ¨āĻŋā§ā§ āĻ¯āĻžāĻ āĻšā§ āĻāĻāĻāĻŋ āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ā§ āĻĒā§āĻ°ā§āĻ°āĻ¨ā§āĻ° āĻāĻ¨ā§āĻ¯āĨ¤ āĻāĻāĻžā§āĻž āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻĨā§āĻā§ āĻ¸āĻžāĻŦ-āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ˛ā§āĻā§āĻ˛ā§āĻ° āĻĒāĻžāĻā§āĻžāĻ° āĻāĻ¨ā§āĻĄāĻžāĻ¸ā§āĻā§āĻ°āĻŋāĻ¤ā§ āĻĻā§āĻā§āĻž āĻšā§āĨ¤
4. Distribution Substation: āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻā§āĻ°āĻžāĻšāĻā§āĻ° āĻā§āĻŦ āĻāĻžāĻā§āĻ āĻ
āĻŦāĻ¸ā§āĻĨāĻŋāĻ¤ āĻĨāĻžāĻā§āĨ¤ āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻāĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻĒāĻžāĻā§āĻžāĻ° āĻ
āĻĨāĻŦāĻž āĻ¸āĻžāĻŦ-āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻĒāĻžāĻā§āĻžāĻ°āĻā§ āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨ āĻ˛ā§āĻā§āĻ˛ā§ āĻ°ā§āĻĒāĻžāĻ¨ā§āĻ¤āĻ° āĻāĻ°ā§āĨ¤ āĻ¯āĻž āĻāĻ¨ā§āĻĄāĻžāĻ¸ā§āĻā§āĻ°āĻŋā§āĻžāĻ˛, āĻāĻŽāĻžāĻ°ā§āĻļāĻŋā§āĻžāĻ˛, āĻ°ā§āĻ¸āĻŋāĻĄā§āĻ¨ā§āĻ¸āĻŋā§āĻžāĻ˛ āĻāĻžāĻ¸ā§āĻāĻŽāĻžāĻ°āĻĻā§āĻ° āĻĻā§āĻā§āĻž āĻšā§āĨ¤ āĻāĻŦāĻ āĻāĻĻā§āĻ° āĻ¸ā§āĻā§āĻ¨ā§āĻĄāĻžāĻ°ā§ āĻāĻāĻāĻĒā§āĻ āĻ¨āĻŋāĻŽā§āĻ¨ āĻ˛ā§āĻā§āĻ˛ā§āĻ° āĻā§āĻ°āĻžāĻšāĻāĻĻā§āĻ° āĻŦāĻŋāĻ¤āĻ°āĻŖ āĻāĻ°āĻž āĻšā§āĨ¤
5. unit substation: āĻāĻāĻ¨āĻŋāĻ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻāĻāĻāĻŋ āĻāĻŽāĻ¨ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻ¯ā§āĻāĻžāĻ¨ā§ āĻāĻ˛ā§āĻā§āĻā§āĻ°āĻŋāĻā§āĻ¯āĻžāĻ˛āĻŋ āĻāĻŦāĻ āĻŽā§āĻāĻžāĻŽāĻŋāĻā§āĻ¯āĻžāĻ˛āĻŋ āĻ¸āĻāĻ¯ā§āĻā§āĻ¤ āĻāĻ āĻŦāĻž āĻāĻāĻžāĻ§āĻŋāĻ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻĢāĻ°āĻŽāĻžāĻ°āĻā§ āĻāĻŦāĻ āĻāĻ āĻŦāĻž āĻāĻāĻžāĻ§āĻŋāĻ āĻ¸ā§āĻāĻāĻāĻŋā§āĻžāĻ°ā§āĻ° āĻ¸āĻš āĻ
āĻŦāĻ¸ā§āĻĨāĻžāĻ¨ āĻāĻ°ā§āĨ¤ āĻ¸ā§āĻā§āĻ¨ā§āĻĄāĻžāĻ°ā§ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻāĻāĻāĻŋ āĻāĻāĻ¨āĻŋāĻ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ āĻ¨āĻžāĻŽā§ āĻ¸āĻāĻā§āĻāĻžā§āĻŋāĻ¤ āĻšā§ āĻ¯āĻžāĻ° ā§§āĻāĻāĻāĻā§ā§āĻŋāĻ āĻ¸āĻ°ā§āĻŦā§āĻā§āĻ ā§§ā§Ļā§Ļā§Ļ āĻā§āĻ˛ā§āĻā§āĻāĨ¤
7. collector substation. : āĻāĻāĻž āĻ¸ā§āĻĨāĻžāĻĒāĻŋāĻ¤ āĻĨāĻžāĻā§ āĻĄāĻŋāĻ¸ā§āĻā§āĻ°āĻŋāĻŦāĻŋāĻāĻļāĻ¨ āĻ¸āĻžāĻāĻĄā§āĻ° āĻŦāĻŋāĻĒāĻ°ā§āĻ¤ āĻĻāĻŋāĻā§ āĻ¯āĻž āĻ¸āĻžāĻ§āĻžāĻ°āĻ¨āĻ¤ āĻāĻžāĻ°āĻŦāĻžāĻāĻ¨ āĻāĻŋāĻāĻŦāĻž āĻāĻ°ā§āĻĒ āĻā§āĻ¨ā§ āĻā§āĻĒāĻžāĻĻāĻā§āĻ° āĻāĻ° āĻā§āĻ˛ā§āĻā§āĻāĻā§ āĻā§āĻ°ā§āĻĄā§ āĻ¯ā§āĻ āĻāĻ°ā§ āĻĻā§āĻā§āĻžāĻ° āĻāĻ¨ā§āĻ¯ āĻŦā§āĻ¯āĻŦāĻšāĻžāĻ° āĻšā§āĨ¤ āĻāĻ āĻ§āĻ°āĻ¨ā§āĻ° āĻŦāĻžāĻ¨āĻŋāĻā§āĻ¯āĻŋāĻ āĻā§āĻĒāĻžāĻĻāĻ āĻĒā§āĻ°āĻžā§ ā§Šā§ĢāĻā§āĻāĻŋ āĻāĻ° āĻŽāĻ¤ āĻā§āĻĒāĻžāĻĻāĻ¨ āĻāĻ°ā§ āĻ¯āĻž āĻ¸ā§āĻā§āĻĒ āĻāĻĒ āĻāĻ°ā§ āĻā§āĻ°āĻžāĻ¨ā§āĻ¸āĻŽāĻŋāĻļāĻ¨ āĻ¸āĻŋāĻ¸ā§āĻā§āĻŽā§ āĻ¯ā§āĻ āĻāĻ°ā§āĨ¤
āĻ¸āĻžāĻ°ā§āĻāĻŋāĻ¸ āĻ
āĻ¨ā§āĻ¯āĻžā§ā§ āĻ¸āĻžāĻŦāĻ¸ā§āĻā§āĻļāĻ¨ 2āĻĒā§āĻ°āĻāĻžāĻ° (Kinds of Sub-station according to service):
1. Static Substation.
2. Converting Substation.
āĻāĻžāĻ°ā§āĻ¯ā§āĻ° āĻāĻŋāĻ¤ā§āĻ¤āĻŋāĻ¤ā§ āĻā§ āĻĒā§āĻ°āĻāĻžāĻ° (Kinds of Sub-station according to Work):
1. Primary High voltage substation.
2. Secondary High voltage substation.
3. Industrial substation.
4. Power factor correction substation.
5. Frequency changer substation.
6. Direct current substation.
āĻŦā§āĻ¯āĻŦāĻšā§āĻ¤ āĻ¯āĻ¨ā§āĻ¤ā§āĻ°āĻĒāĻžāĻ¤āĻŋāĻ° āĻāĻĒāĻ° āĻāĻŋāĻ¤ā§āĻ¤āĻŋ āĻāĻ°ā§ āĻāĻžāĻ° āĻĒā§āĻ°āĻāĻžāĻ° (Kinds of Sub-station according to instrument):
1. Transformer substation.
2. Rotary substation.
3. Rectifier substation.
4. Motor generator substation.
-----------------------*āĻ¸āĻŽāĻžāĻĒā§āĻ¤*-------------------------
āĻļā§ā§āĻžāĻ° āĻāĻ°ā§ āĻāĻĒāĻ¨āĻžāĻ° āĻāĻžāĻŽāĻ˛āĻžāĻāĻ¨ā§ āĻ°ā§āĻā§ āĻĻāĻŋāĻ¤ā§ āĻĒāĻžāĻ°ā§āĻ¨, āĻ¯āĻžāĻ¤ā§ āĻĒā§āĻ°ā§ā§āĻāĻ¨ā§āĻ° āĻ¸āĻŽā§ āĻā§āĻ āĻŦā§āĻ˛āĻŋā§ā§ āĻ¨ā§āĻā§āĻž āĻ¯āĻžā§āĨ¤
āĻāĻŽāĻžāĻĻā§āĻ° āĻ˛ā§āĻāĻž āĻ¤āĻāĻ¨āĻ āĻ¸ā§āĻŦāĻžāĻ°ā§āĻĨāĻ āĻšāĻŦā§ āĻ¯āĻāĻ¨ āĻāĻĒāĻ¨āĻžāĻ°āĻž āĻāĻŋāĻā§ āĻļāĻŋāĻāĻ¤ā§ āĻĒāĻžāĻ°āĻŦā§āĻ¨āĨ¤ āĻāĻŽā§āĻ¨ā§āĻ āĻ¸ā§āĻāĻļāĻ¨ā§ āĻĒā§āĻˇā§āĻ āĻ¸āĻŽā§āĻĒāĻ°ā§āĻāĻŋāĻ¤ āĻ¯ā§āĻā§āĻ¨ā§ āĻĒā§āĻ°āĻļā§āĻ¨ āĻāĻ°āĻ¤ā§ āĻĒāĻžāĻ°ā§āĻ¨āĨ¤
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Expert Engineers: Our engineers are not only highly educated but also possess extensive experience in the field of inverter repair. Rest assured that your valuable device will be handled with utmost care and precision.
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Swift Turnaround: We know how inconvenient it can be to be without power. That's why we prioritize efficiency and aim for short delivery times after repairing your inverter. Say goodbye to long waiting periods and hello to uninterrupted power supply!
â
Quality Service: We believe in providing nothing less than the best to our valued customers. With Pentagon Engineering, you can expect superior inverter repair service that ensures the longevity and optimal performance of your device.
â
Convenient Location: You can find us in the heart of Kaliakoir, Gazipur. Our strategic location allows for easy access, making it hassle-free for you to drop off your inverter for repair.
đ§đ Our Inverter Repair Services Include: đđ§
âĄī¸ Diagnosing and fixing electrical faults
âĄī¸ Control card replacement and repair
âĄī¸ Circuit board repairs
âĄī¸ Component replacement
âĄī¸ System optimization and programming
âĄī¸ General maintenance and more!
Don't let a faulty inverter disrupt your daily life. Contact Pentagon Engineering today and let our skilled engineers restore the power in your home or workplace!
đ Call us now at 01737610897 to schedule an appointment or visit our service center at Kaliakoir,Gazipur. We are ready to serve you and solve all your inverter woes!
Pentagon Engineering
- Your One-Stop Solution for Inverter Repair in Bangladesh! đ ī¸đ
Mechanical Fitter needed for a Group of company.
Expert on Knit dying floor
Salary :20-22000/-
Duty :12hours
Location : Jorun,Kashempur, Gazipur.
Please contact with me via WhatsApp.
01737-610897
đđ§ Need Inverter Repair? Look No Further! đ§đ
Introducing Pentagon Engineering - Your Trusted Inverter Repair Service in Bangladesh! đ§đŠ
Are you facing issues with your inverter? Don't worry! Our team of highly educated and experienced engineers is here to provide you with top-notch inverter repair services. We understand the importance of having a functional inverter, and we strive to get yours up and running in no time!
Why Choose Pentagon Engineering for Inverter Repair? đ
â
Expert Engineers: Our engineers are not only highly educated but also possess extensive experience in the field of inverter repair. Rest assured that your valuable device will be handled with utmost care and precision.
â
Swift Turnaround: We know how inconvenient it can be to be without power. That's why we prioritize efficiency and aim for short delivery times after repairing your inverter. Say goodbye to long waiting periods and hello to uninterrupted power supply!
â
Quality Service: We believe in providing nothing less than the best to our valued customers. With Pentagon Engineering, you can expect superior inverter repair service that ensures the longevity and optimal performance of your device.
â
Convenient Location: You can find us in the heart of Kaliakoir, Gazipur. Our strategic location allows for easy access, making it hassle-free for you to drop off your inverter for repair.
đ§đ Our Inverter Repair Services Include: đđ§
âĄī¸ Diagnosing and fixing electrical faults
âĄī¸ Control card replacement and repair
âĄī¸ Circuit board repairs
âĄī¸ Component replacement
âĄī¸ System optimization and programming
âĄī¸ General maintenance and more!
Don't let a faulty inverter disrupt your daily life. Contact Pentagon Engineering today and let our skilled engineers restore the power in your home or workplace!
đ Call us now at 01737610897 to schedule an appointment or visit our service center at Kaliakoir,Gazipur. We are ready to serve you and solve all your inverter woes!
Pentagon Engineering
- Your One-Stop Solution for Inverter Repair in Bangladesh! đ ī¸đ
Eid Mubarak from Pentagon Engineering
On this joyous occasion of Eidul Adha-2023, Pentagon Engineering extends warm greetings to all our valued clients, partners, and associates. May this festive celebration bring you and your loved ones an abundance of blessings, joy, and prosperity.
Pentagon Engineering takes pride in being a leading provider of spare parts for the textile industry and offering top-notch electronic repair services. Our team of highly skilled engineers, with their extensive education and wealth of experience, is dedicated to solving problems efficiently and swiftly. Whether it's repairing inverters, knitting controllers, motherboards, sewing controllers, centering sensors, or any other electronic equipment, our experts are equipped to handle it all.
As we celebrate Eidul Adha, a time of reflection and gratitude, we express our heartfelt appreciation for your continued trust and support. It is your patronage and faith in our services that motivates us to continually strive for excellence.
May this Eid bring unity, harmony, and compassion among us all. May it be a time of sharing and caring, where the spirit of sacrifice and generosity shines through. Let us come together to commemorate this auspicious occasion with love, kindness, and respect for one another.
Once again, Eid Mubarak from the entire team at Pentagon Engineering. May this Eidul Adha fill your life with countless blessings and may your aspirations be fulfilled. We look forward to serving you with our utmost dedication and commitment in the days to come.
Warm regards,
Pentagon Engineering
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āĻŦāĻŋāĻāĻĻā§āĻ°āĻ: āĻāĻŽāĻžāĻĻā§āĻ° āĻ
āĻ¸āĻā§āĻ¤āĻ¨āĻ¤āĻžāĻ° āĻāĻžāĻ°āĻŖā§ āĻ¯ā§āĻ¨ā§ āĻ¨āĻŋāĻā§āĻ° āĻ āĻĒāĻ°āĻŋāĻŦāĻžāĻ°ā§āĻ° āĻ¸āĻĻāĻ¸ā§āĻ¯āĻĻā§āĻ° āĻāĻĻ āĻāĻˇā§āĻā§āĻ° āĻāĻžāĻ°āĻŖ āĻ¨āĻž āĻšāĻ¯āĻŧ,
āĻāĻŽāĻ°āĻž āĻ¸āĻāĻ˛ā§āĻ āĻāĻā§ āĻ
āĻ¨ā§āĻ¯ā§āĻ° āĻāĻ¨ā§āĻ¯.....!
āĻ¸āĻŦāĻžāĻ āĻā§ āĻāĻĻā§āĻ° āĻ
āĻā§āĻ°ā§āĻŽ āĻļā§āĻā§āĻā§āĻāĻž
āĻāĻĻ āĻŽā§āĻŦāĻžāĻ°āĻ
Repair Available!!!
Stock available.
Mitsubishi & Siemens communication and programming cables.. stock available.
đđđ§đđđ đ¨đ§ đđ§đ đĸđ§đđđĢđĸđ§đ
Stock available.
If your Need Contact with Us.
Stock available.
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Is your flatbed printing machine centering sensor causing you problems?
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Gazipur, 1710
All types of electrical products are supplied wholesale and retail.
Shaodaid Bazar Kaliganj Gazipur Dhaka
Gazipur, 1720
SOLAR IPS BD. All kind of solar solation īŋŊīŋŊīŋŊīŋŊīŋŊīŋŊīŋŊ
H#00013, Block-B, Building-03 (2nd & 3rd Floor), Ward-02, Boroichuti, Kaliakoir
Gazipur
Walton PCB & PCBA is an IPC certificated PCB manufacturing company of Bangladesh.
Keuya West Khanda, Chowrasta, Sreepur
Gazipur, MAWNA
Walton is the latest multinational electrical, electronics, automobiles and other appliances brand.
Kaliakair
Gazipur, 1750
This is a eletronics company. This company product is very good , Many kinds of electronics item
Bata Gate, Madhumita, Tongi
Gazipur
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