Electrical Engineering practice

2 places Dol stator connection

Full meaning:-
1) MC = Magnetic Contactor
2) NO = Normally Open
3) NC = Normally Close
4) AVR = Automatic Voltage Regulator
5) VFD = Variable Frequency Drive
6) MCB = Miniature Circuit Breaker
7) MCCB = Molded Case Circuit Breaker
8)HT = High Tension
9) LT = Low Tension
10) ATS = Automatic Transfer Switch
11) DB = Distribution Board
12) SDB = Sub Distribution Board
13) VCB = Vaccum Circuit Breaker
14) ACB = Air Circuit Breaker
15) BBT = Bus Bar Trunking System
16) MPCB = Motor Protection Circuit Breaker
17) DOF = Drop Out Fuse
18) PFI = Power Factor Improvement
19) HRC Fuse = High Rupturing Capacity
20) L1, L2, L3 = Supply Coil in three phase system
21) R, S, T = Input terminal of supply coil
22) U, V, W = Output terminal of Supply Coil
23) LBS = Load Break Switch
24) ELCB = Earth leakage Circuit Breaker
25) RCCB = Residual Current Circuit Breaker
26) OCB = Oil Circuit Breaker
27) PLC = Programmable Logic Controller
28) DCS = Distributed Control System
29) SCADA = Supervisory Control & Data Acquisition system
30) HMI = Human Machine Interface

ATS without Timer(Automatic Transfer Switch)

Reverse_Forward ..power and Control connection.

Automatic Transfer Switch(Ats)

ইলেকট্রিকের ওয়ারিং কমপ্লিট করার পর কি কি চেক করতে হয়...

পোলারিটি টেষ্ট,
আর্থ রেজিষ্টেন্স টেষ্ট,
ইন্সুলেশন রেজিষ্টন্স টেষ্ট,
সুইজ, চকেট, কন্টিউনিউটি টেষ্ট,
ইত্যাদি

Direct online stator (DOL) control and power connection.

Electrical instrument

Apnader jonno kaj ta kora...like abong follow diye pashe thakben

4-Gang Switch Connection

Amr nij Hate toyri akta Circuit Breaker list...most important for House wiring

16 Dol circuit.

Pfi calculation

3 phase ammeter connection

Single phase Generator with pdb connection

Ats connection

Star delta connection

3 Light 3 switch with Bell

4 way switch with calling bell.

Transformer

2 way switch connection

3 phase Ammeter connection

3 phase to single phase distribution

Single line diagram

Power -factor Improvement

Very need for industry...MDB

Three phase to single phase distribution