Answer Posted / piyush rana

Dear Lalvijaybe,
Just reduce the earth resistance(proper earth connection
should be there).

Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

2199

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Explain how to determine capacitor tolerance codes?

1200

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what will be the min and max voltage flow from neutral to earth?

1537

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Please brief working principle & construction of permanent magnet AC Servo motor

2239

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what is the formula of starting current of 3phase and 1 phase motor???

2110

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Define newton's law of viscosity.

1214

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Difference between Earthing Truck & Earthing trolly for HT panel

4400

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how to determine ct ratio in ht vcb?

1848

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In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?

2147

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What is the cut-off rate?

1163

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i installed 100kva ups. what KVA genset they should provid in input side? plz any update formula or ans with reason.

2341

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how does directional relay work incase of ac ?

1516

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What is the resonant peak?

1187

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Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

2029

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Why an ac systems are preferred over dc systems?

1109

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