Interested to Buy Any Domain ? << Click Here >> for more details...
how to check the earth resistance value& what is the
minimum earth resistance for good earthing sysytem.
- 33 Answers
- 155992 Views
- Brookfield, BSNL, DMRC, Epoch, KPTCL, Polycab, Power Control, SIEA, Siemens, Wipro, I also Faced
- E-Mail Answers
Answer Posted / robeesh
Earth Resistance test to be conducted on summer conditions to achieve the correct value by using an earth resistance tester (From Megger/ Sanwa/ Fluke). The value should be less than 1 Ohm for electrical earth pits and less than 10 Ohm for Lightning protection System. Procedure for testing should be as per the equipment.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
i want to know about torque of slip ring induction motor
what is the function and use of cable differential protection relay?
The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is
Power Factor Correction Panel (Manual & Automatic)
what is magnetizing and demagnetizing current in generator and motor?
why the colour of insultor stack , petticoat is brown. Is it has some technical reason.
The magnitude of sum of two sinusoidal av voltage is equal to 230 volt.the magnitude of each individual voltage is also equal to 230 volt.what must be the phase difference between voltages?
WHAT SHOULD BE THE BEST CURRENT RATINGS (PRIMARY / SECONDARY)FOR A CT INSTALLED AT THE INCOMING 11KV PANE? WILL IT BE CALCULATED ON THE BASES OF MAXIMUM DEMANT VALUE OR ON SUM OF ALL TRANSFORMER'S KVA? NOMALLY MAX DEMAND REPRESENT THE MAXIMUM OPERATING LOAD OF THE PLANT AND TOTAL KVA OF (SAY 5 NUMBERS TRANSFORMERS) REPRESENT THE CONNECTED LOAD. WHICH i.e. MAX DEMAND KVA OR CONNECTED KVA ARE BETTER TO USE FOR CT CURRENT CALCULATION? PLEASE ANSWER.
What is Electrical Grade Aluminum for Tubular BusBars. i am confused between 6063 and T6 or T5 and what is BS 2898 and BS 159?
State nyquist stability criterion.
Damping resistor provided in open delta (tartiary) winding of a measuring PT at the incoming of a MV inverter drive panel is getting heated up. Can any body explain the reasons and suggest the remedy?
sir i used 3 hp of motor for spraying pump, other home light and other home items which size of allminium pvc wire ix used
1)Explain why the cradle guard is used on railway crossing in overhead line construction?
we specify current in case of feeder but in case of distributor voltage, why?
what is the formula of starting current of 3phase and 1 phase motor???
