Answer Posted / venu

DC series motors are widely used where we require high
starting torque particularly in lift/elevators

for opening electrical shop, tips needed.

1821

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I want to replace the 3 KW DC motor with AC motor so what should be the rating of AC motor? Details Of DC motor to be changed with AC are - Kw - 3, Vf - 310, If - 0.15, Va - 400, Ia - 13, RPM - 2400

1808

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Difference between control junction box (cjb) and power junction box(pjb)?

4310

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What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.

2214

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how to decide the capacity of accl

2426

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Either the Armoured Earthing strip of HT 3 core cable have to pass through CB CT or not , why ???

2080

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if the load is 80 amp for main fuse and 100 amp for breaker so how can we calculate the cable size (cooper ) .

2069

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True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)

1568

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what's the exact magnitude of current, flows through Neutral?

1962

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Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?

4064

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what is the most permissible winding temp when we conducting a generator load test?(condition no load)

1711

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what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

1887

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What is the mechanism of WTI

1786

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What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

1996

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What are unstable systems?

1119

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