Answer / naveen

resettable protective device

Answer / jack

make and break unit for protection

Answer / pppp

It is automatically operated elcetrical switch which is designed to protect from overload and short circuit.

Answer / k.prakashchandra

Switch gear

Answer / randzu

Is an automated electrical power isolator, which under
fault/heathy conditions, breaks or make circuit of the
protected load or equipment through the command of
relay "refered to as the brain of electrical protection".
The combination of Circuit Breaker, Protection/Metering
Relay, Current/Voltage Transformers and Fuses make a
switchgear. Circuit Breaker alone CANNOT be regarded as a
Switchgear, as all the above mensioned equipment work
antagonistically to bring about the end result of
electrical system

Answer / kajanijam

ON Load Break Switch

Answer / deepesh

a device which diconnect the two contects

Answer / engrosamabinamjad

residual-current device (RCD), or residual-current circuit breaker (RCCB).

Answer / p.kamal

contoldevice

Which motor has high starting torque

2 Answers   Greenko,

do anyone out there know where to find a compleete list on acronyms/abbreviations used in offshore electric engineering. MCB - Micro Circuit Breaker, MCCB-Mouldes Case Circuit Breaker, ELCB-Earth Lekage Circuit Breaker, ELMCB- etc.....

0 Answers   Aibel,

How to test Power Transfomer vector group?

1 Answers   Bhel,

HOW WE CAN REDUCE THE CIRCUIT COMPLEX OF STAR-DELTA STARTER .BECAUSE NOW WE USING ONE TIMER RELAY & THREE CONTACTOR FOR MAIN,STAR & DELTA ?IF ANY IDEAS PLZ POST.THANK U

0 Answers  

How eddy current generation support the idea of train braking?

0 Answers  

PLZ EXPLAIN CORONA,SKIN,BIRD PALE,SPAN,SAG Effects of power cable.

0 Answers  

- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

0 Answers  

What is the difference between KW & KVA ?

10 Answers  

I have raw material for making Compact-Choke for flourscent lamp of 40 Watts. We are suppose to get 0.4 amps output at end. but we are getting 0.42 or 0.44 amps and above. We have done many testings in different but nothing worked out. Please suggest me how to get the correct output. We are using 1. core winding of 700 windings of aluminium 2. E-shape iron fillings and I-shape iron fillings to surround the winding.

6 Answers  

Why the transformers are rated in kva?

11 Answers   Birla, NTPC, Reddy Labs, Vijai Electricals,

What are the point of a single core cable to be earthed?

2 Answers   Alfanar, Jindal,

What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.

0 Answers   GNFC,