Answer / guest

over current-a)instantaneous, idld,thermal earth fault,
under votage.

Answer / romeo

in addition, differential relays for current and voltage
are necessities also to monitor considerable leakage of
current and difference in voltage (in case of two leg
switchgear for a make and break design) to a magnitude that
will activate tripping action or prevent closing of the bus
tie.

HOW DO WE COLLECT THE SOLAR ENERGY AND DESCRIBE THE METHODS TO CONVERT THE SOLAR ENERGY INTO ELECTRICAL ENERGY?

1 Answers  

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Can we use the ceiling fan regulator to run drill machine having 2000 watt power consumption?

2 Answers  

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Why we use a shunt capacitor or synchronizing Motor To Improve a Power factor pls reply me in this mail dinesh_elect_eng@yahoo.com

4 Answers  

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How to design constatnt power source with variable current and Voltage.

2 Answers  

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how to convert the KVAR to microfarad??????????????????

2 Answers  

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testing ZNYn11(d) vector group transformer

1 Answers  

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The inexpensive way to improving energy efficiency of a motor which operates consistently at below 40% of rated capacity is by _____.

2 Answers   IFFCO, Sanmar,

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what is vA rating and class of a ct.

0 Answers   L&T,

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To generate electricity , what is the speed of rotor?

1 Answers   JEC,

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i want to know d working mechanism of tafe tractors next i like to know d engine type of apache bighs can anyone help me

0 Answers  

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I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

0 Answers   Siemens,

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meaning of two lines in between the transformer single line diagram??

3 Answers  

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