What is dynamo?How it works and what is the function of dynamo in a DG.

3 Answers   Amrapali,

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I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

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highest rating of alternator used in india

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following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?

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if the field circuit of a d.c. shunt motor running without load gets opened, then the motor will

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What is the difference between isolators and electrical circuit breakers?

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What is the use of insulation tester and how it is to be used.

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Sir pl provide 5 year sample paper for post junior engineer(electrical).I have currently applied for junior engineer (electrical) on RRB Ajmer

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MICOM P122 OC/EF RELAY HAVE HARMONIC RESTRAIN OR NOT?

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Dear All, Can anybody please tell me which value(saturated or unsaturated) of sub-transient reactance(Xd") we take for the calculation of fault current of the system?

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why do we lay up the core of a cable?

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what is the diffrence between resistive , inductive and capactive load please explain with exmpels?

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