Answer Posted / victorvgp

First of all Busbar is a bar conductor having comparitively
higher thickness in order to neglet I(square)*R losses.

The purpose of placing busbar is to maintain constant
voltage to all parallel circuits connected throughout the
panel.

Is RTCC panel needs any control supply.

2109

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What is milivolt dop test in Busducts? What is its significance & procedure to do the test?

2136

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Explain the operation of grid connected central solar inverter ?

1579

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if a number of plc s are there then how many modbus to be used

2002

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Do Phase angle measurement have any application in freq/harmonics measurement? If so how?

1991

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why is the conservator tank painted white on the transformer

3255

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What is limitedly stable system?

1185

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How phase to phase voltage comes 440V.

2166

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What is the Basic Difference bitween Long Shunt Connection and Short Shunt Connection in DC Generator?

2390

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How CFL &T5 tube light glows?

2093

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What are the different methodes for calculating the short circuit Current?

2112

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Approach of a cooling tower is the difference between temperatures of what factors?

1181

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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?

1798

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hi if anybody got model questions for cpcl Grade'A' electrical engineer position.send it to my mail please krishkumar22@gmail.com

2075

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What do you mean by power transformer?

1144

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