My ups output shows 230 v between phase and neutral,but show zero between phase and earth.Is the system/installation is correct.If not what will be the possible reasons

4 Answers  

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How to decide whether A / B / C / D curve type MCB should be used?

0 Answers  

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difference between isolater and circuit breaker?

7 Answers   Adani,

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If two transformers same rating(11KV / 440V)connected in the same primary line(11KV), can we connect(bus coupler) secondary side directly or need a synchronization????

3 Answers  

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What happen Grid EARTH plat got cut.

0 Answers   Zuari,

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PRV (Pressure relief valve) Trip with oil splash outside power transformers

1 Answers   Khan,

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write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;

0 Answers  

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Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.

0 Answers   DEWA,

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What is the necessary and sufficient condition for stability.

0 Answers  

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What causal system?

1 Answers   NTPC,

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Which has more losses, AC or DC??

4 Answers   Infosys, TATA,

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how to improve IR value in HT motors?

3 Answers   ABB, AMW, Macleods,

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