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

we use 3 phase supply for induction motor why not use two phase supply .

4 Answers   TLC,

there are 3 transformers each of 1500 kva and one transformer of 1000kva for a 11 floor building . total otgoing kw is 4066 kw. i need an extra 260 kw .is there any provision for that? what is the max kw that can be connected with these transformers?

2 Answers  

For 7.5kw star delta starter how to calculate 1. Mccb rating 2. Contactor rating 3. Over load relay rating

1 Answers   L&T, MAHINDRA,

how to calculate the cable size depending on the transformer rating

2 Answers  

Does the hysteresis loss is due to retentivity property of the material? or it is due to reluctance property?

2 Answers  

a transformer can have zero voltage regulation a)o pf b)1 pf c)lagg pf d)lead pf

2 Answers   SJVN,

What are test signals and their significance?

0 Answers  

can u tell the difference between star-star transformer and delta to delta transformer.

3 Answers   Videocon,

Why are transmission lines multiples of 11? Is it because of some historic reason ? Or is there a scientific base to it?

5 Answers  

whta does the middle finger stands in flemings left hand rule

3 Answers  

Ht panal kia hota ha?

1 Answers  

what is Ith current?

4 Answers