Recently we had experienced following problem All RCCB breakers (connected to the load as well as spares) connected to various UPS systems at various floors at a high rise building tripped during a power break down and upon starting up of generator.This Generator is recently inducted into the installation. Can any one explain the reason behind this tripping. Regards Viswanathan

1 Answers  

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Dear all,recently in our plant we installed a conveyor for this the motor ratings are 5 hp and Amps 7.39.Due to on urgent starting of conveyor we fix the DOL starter with range of 9-15 amps.give me suggestion regarding on this issue

1 Answers  

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what is the mean of short circuuit current ( for ex. 50KA)?

2 Answers   Weltech Engineering,

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Is it possible to operate a synchronous 2-poles turbogenerator with a still-in-place faulted bar but electrically disconnected ???? If yes, should I act on the other phases as well ???

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WHY CURRENT DECREASES WHEN VOLTAGE IS INCREASED IN A CURRENT TRANSFORMER ?

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why secondary of c.t. will kept open ?

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how to electronic energy metter failed in electomagnectic fild passing in the metter and which thing to defect more on metter.

0 Answers  

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why the earth conductor in top of the tranmission line ?

2 Answers  

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what will be happened when a single phase motor is supplied by the dc supply

3 Answers  

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In HVDC LINE RECTIFIER CONTROL ON CONSTANT CURRENT AND INVERTER CONTROL CONSTANT EXITATION ANGLE CONTROL BUT HOW INVERTER CONTROL CONSTANT CURRENT?

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How do determine the Size of a Droop Current Transfomer for Paralleling of Two Generators, Say I need a Droop Current transformer for a 600 kW generator need to be parallel with a 800 kW generator, etc.

2 Answers   JK Cement, MPPGCL Madhya Pradesh Power Generating Company Ltd, PNG Power,

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What is essential to prove safe isolation of electrical circuit?

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