Answer / vinayak

For 6.6 KV Motor's VCB haves inbuilt interlock that if you
try to rack out VCB it will trip VCB and naturally trip
Motors. IS/IEC will not permit omit this intelock.

In Case if interlock not working, It will produce arching
and Noise at point of disconnection of contact.

Answer / jk

No doubt, It'll Trip the motor.

Answer / shahid mukhtar

there is a mechanical lock which inhibits breaker to
rackout in case of breaker close. so you cannot rackout
braker in close position.

Answer / sri rama murthy

electrical flash can take place as it happened in my
industry

how to calculate multiplying factor with ct ratio 400/5

1 Answers   KBPL,

---

HOW TO WORK A VFD?SAY SIMPLE METHOD

1 Answers   GE,

---

why so maney smaller size capacitor use instead of single Big size capacitor in apfc panel

1 Answers  

---

A wattmeter is marked 15 A/30A, 300V/600V and its scale is marked up to 4500 watt. When the meter is connected for 30A, 1600V, the pointer indicates 2000 watts. The actual power in the circuit in

1 Answers   Jindal,

---

HOW TO CALCULATE BATTERY BACKUP TIME & AH CAPACITY AGAINST UPS KVA RATING?

2 Answers  

---

---

why there using acb enclosure in big buildings

0 Answers   Tata Power,

---

description about dry type transformers

0 Answers  

---

what is the use of interposed & reverse voltage transformer

2 Answers   Anjani Steels,

---

What id difference between power and energy?

0 Answers  

---

How to calulate Locked rotor amper(LRA) for compressor type motors?

0 Answers   MAF Dalkia,

---

I have a reading off 1.5ohms at my mem my main c/b is rated at 40/6 amps in a domestic house and i was told to change it to a b curve c/b is this ok

0 Answers  

---

What are the different types of hydro schemes?

0 Answers  

---