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Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.
1555For DG or Transformer body earthing, is it necessary to terminate the earth bus to earth pit directly? If not terminated to earth pit directly in earth pit and connected to any common bus strip which ultimately connects to earth pit, what will be the pros and cons?
1 2004If only R Phase is connected in 2 pole elcb, n is not connected than it will work or not in ground fault.
1398We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.
1477we have amp, voltage, kw, length detail then how to calculte copper & alluminium size of conductor of 3-phase induction motor
1413Post New Electrical Engineering Questions
explain wiring system
what happen when power factor of 2 parallely operated transformer become equle?
How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?
how to check ac servo motor
How halogen & merquery lamp works.
What are the types of power in electrical power?
PIU how does work?
Is it required to use Automatic transfer Switch in L&T panel board if we use AMF panel with DG set? How the single line diagram will be? Please forward the material to sreenu_207@yahoo.co.in
plz send me HPCL apptitude paper.. maulik_elect@yahoo.co.in
Is it required to lay 2 runs of GI wires along with armoured cables from one power DB to another Power DB?
is there any role of power factor with frequency variation? and how we can manage the frequency variation?
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)
An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The slip when motor stalls is A 1 B 0 C 13.33% D 10.33%
how to determine the cable size...pls explain me with the formula taking particular load....does the factors like impedance & short circuit rating influence the cable size, if so how....
What is the safety of UPS?
