Answer Posted / sandy

to make the fan motor self stating and to inprove the power
factor capacitor used in fan not resitor.

Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?

1162

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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.

2033

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how to carried out tan delta test in 11 KV alternator ?

3079

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why there using acb enclosure in big buildings

2116

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please send me previose rrb junior engineer qustion papers

2159

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what is the difference between 4pole & 6pole DC Motors & give advantage ?

1911

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-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.

2137

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What are test signals and their significance?

1133

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we are small scale industry in production of rice & rice bran. Pls let me know how to take contract demand for our industry.. (for information we have total 600.hp)

4414

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explain comutator action in detail.thanks

2259

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What do you mean by a current transformer?

1102

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what is the formula for computing cable tray size & capacity

2175

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How to test REF relay testing for LV panel as per Kahramaa standard?

4953

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Draw a SLD of DG distribution up to main LT panel?

9487

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how we start 40w tube light with 4 diodes,2capacitors,1 choke and without starter.(a product avilable in market which lights burnt tube lights also)

2058

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