what is High resistance grounding and whatis the criteria
for the selection of High resistance grounding
Answer / akshay chauhan
High Resistance Grounding (HRG) is a method where high resistance is connected between a system's neutral point and ground to limit ground fault current, usually to less than 10 amps, allowing the system to continue operating during a single ground fault while protecting equipment.
Selection Criteria:
System Voltage: Suitable for low (up to 600V) and medium-voltage (up to 15kV) systems.
Fault Current Limit: Typically limits fault current to 5-10 amps.
Neutral Availability: Requires an accessible neutral point (e.g., wye transformer).
System Continuity: Used where continuous operation during faults is critical.
Ground Fault Detection: Should include monitoring for fault identification.
| Is This Answer Correct ? | 0 Yes | 0 No |
pls send me some of the solved question booklet of Junior Engineer -2 (ELE) in RRB
What should be the voltage between Neutral and Ground in secondary side of the step down transformer (230 V to 110 V) with no load condition?
Anyone who can recommend an equivalent to Envirotemp FR3 of Cooper?
I am getting differential earth fault in my transformer realy , i have checked all its CT & control wiring but do not get fault, Please help
What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?
what is the purpose of using semiconductors in HT cables
why induction motor always operate at lagging p.f.?
we all know that in transformer, voltage and current are inversely related i.e. Vp/Vs= Is/Ip....so in standard CT..we have a ratio of 200/5...that means our voltage should increase by ratio of 40..althoug that is not the case...because that requires high insulation level.and pratically not feasible......can anybody clarify my ques.......thanx
where is highest transmission voltage is used in india
why is efficiency of transformer more than that of other rotating machines?
my N-P 230 VAC at 3 wires but i haven't any voltages at phase to phase whither my supply is 3 phase, why i haven't received these line to line voltages ?
What is maximum rating of transformer ?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)