what is the difference between Ith & Iu rating in MCCB. Particularly on SACE ABB Circuit Breaker?2 14628
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?1428
what would happen if reactive power (kvar)is increased (more)or decreased (less)? how much exact reactive power should be maintained? and what should be done for that1511
A car's starter motor draws a current of 100 A at 12,0 V when starting the engine. The mechanical power required to turn the engine is 960 W. At what rate is energy from the battery converted to non-mechanical forms of energy?1346
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what are the precuation should be taken ahen installing power transformer,circuit breaker,current & potential transformer1241
Where is the center of magnetic field in alternator1 4824
what is the diffrence between preventive maintinance corrective maintinance?7 17651
in a dc motor we supply current only to the armature conductors,from where is the field winding gets excited then??3 4262
what are corona losses3 4855
How to know Resistance and Reactance value of main and aux winding of single phase capacitor start capacitor run induction motor to find capacitor value?1255
what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker1 4090
What is the problem, if a circuit breaker is not closing.4 17278
How npn and pnp transistor works
while working as a Junior consultant(working under a senior consultant)Tell me a difficult situation you have faced and how you solved it? What documents you have referred and documents you have Updated?What was team member's and team leader's reactions to the situation and the way you solved it?
What is the use of value field in the co-pa module? : cost center accounting
Explain the difference between masking and non-masking?
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What are the advantages of the event-delegation model over the event-inheritance model?
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How to know Resistance and Reactance value of main and aux winding of single phase capacitor start capacitor run induction motor to find capacitor value?
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i want my company code and controlling area defaut as 'ABC" through out SAP what to do ? and my plantcode also default to some value
Define page output caching?
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