Answer / iamdon

A pulse transformer is a transformer that is designed for
transmitting RECTANGULAR ELECTRICAL PULSES(pulses with fast
rise and fall times) of a relatively CONSTANT AMPLITUDE. A
Pulse transformers by definition have a duty cycle of less
than 0.5.

Small power versions are used in digital logic and
telecommunications circuits.
Medium-sized power versions are used in power-control
circuits such as camera flash controllers.
Larger power versions are used in the electrical power
distribution system.

To minimise distortion of the pulse shape,a pulse
transformer needs to have
1)Low values of leakage inductance and distributed
capacitance.
2)High insulation resistance and high breakdown voltage.
3)Good transient response.

if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?

0 Answers   Delta,

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In supply RYB are mentioned. But in transformers, why they are mentioning XYZ?

3 Answers  

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where can i get the previous years question papers for APGENCO exam.

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when a motor is connected in parallel with the existing motor the pf will change or not?

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2 Answers   Cummins,

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0 Answers   HAL,

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how do you measure earth leakages in 3phase wires?

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why aggregate is placed all around substation ground.

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A three phase load, around 4 km away from the 11/0.433KV distribution transformer (Neutral of Transformer is solidily earthed) and consisting of mainly very costly and sensitive electronic equipments is giving trouble due to high voltage difference between neutral and body earth. Whether this problem can addressed by connecting neutral at the load point solidly to earth?

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explain PV modules in solar energy generation.

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state working of halogen lamp?

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What is the maximum advisable distance where it is required to interconnect a 500 KVA 480 V 3 ph transformer and the main panel or MCC ignoring the voltage droop affectation, does it is exist any standard about it?

2 Answers  

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