Interested to Buy Any Domain ? << Click Here >> for more details...
How do you maintain the earthing resistance?
- 13 Answers
- 60447 Views
- Birla, Ford, JLL, I also Faced
- E-Mail Answers
Answer Posted / narendra katakkar
First of all, a desired maintenance schedule is chalked out depending upon the diversity and intricacy of the installation. A typical maintenance schedule can be as follows.
1 Fix up a day (Maybe once a three months) and preferably when the installation is idle.
2 On that desired day the main power can be switched off, then disconnect all the neutral and body earth terminal connections.
3 Using Earth test instrument resistance of each earth station should be tabulated.
4 The earth stations to be properly watered or one can use drip irrigation system for continuous moisture retainment. If necessary add salt and charcoal or compound depending upon soil conditions. Excess of these materials to be avoided as this would lead to corrosion of earth electrode.
5 Check all the intermediate connections and remove rusted/corroded components.
6 Once again check the resistance values all the values should be below 2 ohms.
7 Connect back all the earth strips, on the power.
8 Fill up log book with noted resistance values.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
how we will deside the high voltage value
how can we change the phase angle b/w two phase?
is there any device that works properly accept relay, it may be fuse but if i want fuse of 33kv 300 amp it is avaliable, pls give me details
Vaccum circuit breaker
Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?
If I bring a basic electric meter from the States and hook it up in Costa Rica in a development that has only one transformer for the 50 homes, will it still be accurate regarding the usage of kilowatt hours?
Why delta star trformers are used for lighting loads?
State kirchoff voltage law?
why the name trunking bus PT
what is The difference between national electrical code and I.S.Code (electrical) and what is the value of NEC in electrical engineering field
What are approaches to tackle sedimentation problem of reservoir?
why we testing the core balance of the transformer before comissioning?
Dear Sir/Madam, I have one questions we have three steam turbines and one Gas turbine and our industry linked with the public network, we have protection system one of the protection is reverse power we can export just four MW only i would like to ask about how to calculate the reverse power. Thank you in advance best regards
if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .
On what cycle does thermal power plant operate?
