Answer Posted / mathew

normally, for HT we are using 240Sqmm cable in ring circuit. this 240sqmm cable is not sufficient for 700A, 2x240sqmm is sufficient for 700A. but we can use this 240 for both 11KV and 415V, thats not a problem.

how to measure the transformer resistance values(dyn11)?and howmuch the minimum value?

2191

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What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?

1923

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in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply

2170

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apti mainly on logical reasoning, verbal and non-verbal ability (70 percent) and remaining technical. I was in ee but technical had mech ques like on turbines and welding.

2226

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sugest any typical project ?

1867

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Name two low frequency oscillators?

1493

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For RCD (Residual current device) Icu is defined. How i can find Ics for them?

2112

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For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?

2034

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What are the various types of rotor used in the alternators?

1119

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What is pole of the system?

1191

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why do we measure VIBRATION in -24vdc and why we adjust gap voltage -9vdc to 10-vdc? i am trying to get this information since 5 years, yet i haven't get reliable answer, i hope i can get from you.

1893

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1.what is the difference between ct and cvt? 2.what is the difference between pt and cvt? 3.what is the difference between relays and circuit breakers?

2812

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what is the meaning of 0.5ohm Resistance

1914

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Explain the following and how these are working with PLC Unit 1 I/O Module Card 2 Adaptor Card 3 Ribbon Adaptor 4 I/O bus 5 I/O Devices

1672

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What are the various kind of cables used for transmission?

1145

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