how to check the earth resistance value& what is the
minimum earth resistance for good earthing sysytem.
- 33 Answers
- 144608 Views
- Brookfield, BSNL, DMRC, Epoch, KPTCL, Polycab, Power Control, SIEA, Siemens, Wipro, I also Faced
- E-Mail Answers
Answer Posted / bhavini
earth tester use for measuring resistance of earth pit
should be less than 1 ohm.
| Is This Answer Correct ? | 105 Yes | 26 No |
Post New Answer View All Answers
What is stepper motor. What is its uses?
what is lrs tank water resistance.
why on axial hitting up of air blast on hydrogen produced in oil circuit breaker,temperature rises of the core of the arc?
what is interpose? where it is used and why it is used?
what will happen if earth of 33 kv cable (earthed system) is not connected to earthing pit?
errection check list for transformer maintenance
Apparent power is expressed as V * I(Conjugate). Why not in V * I ?
Give some differences between open loop and closed loop?
How many wall/floor flange will i use in bus duct system if we have in our design a 35th floor building.
why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?
what is meant by rotating magnetic filed
What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side
what is difference between 2 pole structure and 4 pole structure in transformer yard
Power factor =1.000 at factory in supply. However, PF = 0.8 at motor end. Current = 100 Amp, Voltage = 400 V. What is the power distribution loss? Can I reduce it by adding capacitor at the load feeder?
sir please send me techinical questions for junior engineer posting in bangalore railway i am diploma holder
