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According to grid we are buildings plan executed we divided different type part of building plan

How the speed of synchronous motor changes with the variation of load?

1 Answers  

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What is the maximum operating temperature for a thermoplastic insulated cable?

1 Answers  

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In Energy meter How many rotation Equal to one unit.

3 Answers  

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One of our gas turbine generator unit "1st stage rotor ground fault" alarm was occured several times. we tried to measure some voltage vulue ground fault protection relay (UNS3020a made by ABB and we measured the value of: Ground: 0.9VDC 5V: 5.8VDC 24V: 23VDC u+: 300 – 350mVAC Rf1: 17.5mVAC Rf2: 17.6mVAC The unit still running and the alarm was reset. As of 6pm yesterday and unitl now no alarm happened again. I our protection relay was defective?

1 Answers  

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what is buchholz relay?what is it used for?

8 Answers   Engineers India Limited, NFCL,

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Why the efficiency of generator is more than motor in swinburne's test

1 Answers  

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SMPS (Switch Mode Power Supply) unit is denoted by KW or KVA?

6 Answers  

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I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

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WE HAVE A PROBLEM THAT THE MAIN DRIVE OF OUR CEMENT MILL HAS AN EARTHING PROBLEM?TWO OF STATOR WINDINGS INSULATION HAS BEEN COLLAPSED DUE TO AGING PROBLEM.THE PHASES HAVE BEEN BYPASSED AND NOW THE LOAD HAS BEEN INCREASED.WE CAN'T REPLACE THE MOTOR.KINDLY HELP ME BY GIVING SUGGESTION THAT HOW TO MAINTAIN THE STARTING TORQUE AND CURRENT FOR HIGH LOADS.

1 Answers   ACC,

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Why have to use copper cable for local isolator to motor ?

1 Answers  

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When VFD is connected to a 3 phase main supply there is load current difference between incomer to VFD and outgoing from VFD.

1 Answers   Shasun Chemicals,

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What is the difference between Busbar Chambar, MCCB board and MCB Board? How to choose to use which one in the system?

2 Answers  

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