Answer / tanmay kumar

No,we have to make it manually by reseting the operated relay.

Answer / jaydeep

FIRST OF ALL SWITCHGEAR ARE CONECTED AND THAN AFTER C.B.
ARE CONNECTED B'Z SWITCHGEAR ARE USED TO DISCONNECT OR
RECONNECTION OF THE SYSTEM FROM LIVE ENERGIES .

Answer / yusuf

Once the Fault Cleared the CB Can be closed automatically
using Auto Re closure Relays... Auto reclosing relays are
available on different brands like SIEMENS, ABB and etc.,

Answer / gavin

Circuit breaker miniture as found in a consumer unit or
air as in a switch panel. MCB will not auto reclose as per
BS7671.
ACB will auto reclose using shunt coil but not if earth
fault is not reset first manually

Answer / mg

There is autoreclose function in protection relay(autoreclose relays) if fault is cleared the relay give close command to CKT breaker.

Answer / iqbal.aizza

with the help of springs which are placed both sides of
contacts.

How the size of electic machine vary with the sped? Between slow and fast running machines of equal ratings, which one is more economical to design?

1 Answers  

What is the minimum percentage of power that a powerplant can support in ilanding mode ?

1 Answers  

What is the height of DA, DAL, DB, DC & DDE tower?

0 Answers  

how many maximum nos of add on contact we shd provide on 4 no contactor

1 Answers   Accenture,

I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?

0 Answers  

What is function of Diesel Generator?

2 Answers   Bhel,

electricity bill multiplication factor 487.20xconsumption=total unit in kwh. what is 487.20 ?

1 Answers   Spec International,

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2 Answers  

WHAT IS MEANT BY BTU OF AIR CONDITIONERS.

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why test lamp didn't glow across 500v megger?

4 Answers   Aurobindo,

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What's ND relay & it's functions?

2 Answers