Interested to Buy Any Domain ? << Click Here >> for more details...
How many earthings are provided for a 250KVA distribution
transformer?
- 9 Answers
- 18269 Views
- I also Faced
- E-Mail Answers
Answer Posted / virendra
Total 4 earthing 2 Nos for Body earthing & 2 for Neutral
earthing & also interconnect both the body earthing to each
other & same as in neutral earthing.
| Is This Answer Correct ? | 3 Yes | 3 No |
Post New Answer View All Answers
hi friends if you have any 400KV Substation Erection and installations Drgs please send to me.My email id:kandi.suresh441@gmail.com
Why a Permanent Magnet Generator has higher frequency as compared to frequency of main alternator?
what is RFID? thire application;
if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit
what are the tests comes under the type test, what tests comes under routine tests.
Why control of DC motor is simpler?
What is the ratio of true power to apparent power in an ac circuit?
What does ampere turns shows?
The simple way of finding the leakage quantity and % in compressed air distribution system
how we find transformer capacity by ohm
mention hazard experienced during installation
Salient pole alternator is more stable, why?
How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?
How can claculate to attain the desired PF in the line ( HOW Much KVAR is required ) Pls Give the formula? Equate Petrochemical 0 1 how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec. 0 1 What will happened. if we feed 3phase supplay to the stater with out insert the rotor. How much current will flow through the stater winnding? Equate Petrochemical 0 1 What is required of exietation to the alternater. 0 1 why star point of HT motor not earthed? Equate Petrochemical 0 1 Why we are getting low voltage in star connection? Equate Petrochemical 0 2 What's ND relay & it's functions? Equate Petrochemical 0 2 How instantanious short circuit current is calculated? its formula? Equate Petrochemical 0 2 What is servo Motor? What's the advantages of this motor over Induction motor? Equate Petrochemical 0 2 What is core CT & it's function? Equate Petrochemical 0 3 what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY L & T 0 4 What is required of exietation to the alternater. KNB 1 23 what is the design voltage for 6.6KV 2000 KVAR HT capacitor? Consultancy 0 3 Pls explain about vfd control?Where it is used, Give some example? siemens 1 22 Please explain me abt PQ diagaram in the power sector. 0 9
what is difference between bus coupler and auto transfer switch
