Answer / gopal

A motor designed for line frequencies doesn't have the
inductance to limit current at 25 Hz. And the coupling to
the rotor is inefficient. Driven to provide reasonable
torque it will heat badly.

how it can be decided what will be the rating of CT and PT to be used in LT or HT cables?

3 Answers  

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1) name the communication cable and how it is communicate in between plc to modbus , plc with hmi? 2)name of the communication cables?

1 Answers  

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what is the diffrence between mcb &elcb?

2 Answers   Kahramaa, Synergy,

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HOW TO IDENTIFY THE RELAYS WHICH APPLICATION IN WHICH RELAY USING

3 Answers  

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what is the long transmission lines

2 Answers  

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why rating of transformer is in kva instead of kw?

3 Answers  

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What is different between Metering CTs and Protection CTs?

4 Answers  

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what is skin effect?

4 Answers  

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need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.

0 Answers  

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what is diffrence between dc motor and dc generator?

3 Answers   HBL Power Systems,

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how is the leakage current flow only through guard wire (when guard wire is connected in the circuit)????

2 Answers  

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25 kvar capacitor , how much current ? For 25 KVAR--Capacitor I = ?

3 Answers  

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