Answer Posted / shy11am

S.D.F Stand for 'SWITCH Disconnector Fuse' Unit with
Tripple pole neutral(R,Y,B,N).

it provide more safety compare to general fuse unit.

Write down the name of 2 lady Bir Pratin of Bangladesh

1971

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What are the no-load losses for the 11000/415V transformer with the following rated capacity? 1.1500 kVA 2. 2000 kVA 3. 2500 kVA 4. 3000 kVA

1745

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How many lightning arrestors to be installed on 50MX60MX10M building and is there any formular for that?

1988

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any application of back emf

2115

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How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

2170

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After synchronization with grid what is the demand value QKVAR and how we will maintain that?

2249

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is it possible to test of bus bar in high rise building without completed full floor ?

1680

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what is the differebt between ac and dc fuse?

2330

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A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.

2501

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how is the connection of a 3 phase ct trivector meter done on a pole mounted transformer

1353

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block diagram of 2 ups system connected in parallel mode?

2068

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i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected

2238

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is that a problem if i connect a single phase load to a secondry delta connected transformer but i get a neutral from other transformer i the system?

1847

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what is the meaning of the symbol << >> put in transformer drawing

1966

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What is the Temperature to be set in Thermostat provided in Marshalling box of the Transformer / Motor.

3013

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