New istallation how many eathing have one transformer?
Names of earthing connect places?
Answer Posted / manikandan
Thats depends upon the vector group of the transformer.in
case star-star,the neutral earthing is require 4Nos
(Primary/Secondary)earthing and transformer body is
required 2Nos earthing.Types of earting is more than 2.That
is depends upon the standard practice.
Types
1.Direct earthing(In India)
2.Inductance earthing(In practice in UN)
3.Using resonant coil
| Is This Answer Correct ? | 3 Yes | 2 No |
Post New Answer View All Answers
How many double suspension hardware fittings are required on a double circuit transmission tower?
Is there any guideline say about display of earthing value near to earth pit
What will happened if the neutral of the (star connected secondry) Xformer disconnected? (if its Above KVA rated one)
How to Make relay co ordination chart for a Electrical power distribution of a plant
what is the cause of voltage dipp or swell in the transmission lines?
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
why d.c produces corrosion
how current is reverse from its normal direction during the fault?
DG cranking voltage?
any body,pls tell me how to done relay coordination ? how to coordinate by TCC curve?how to read the tcc curve?
how to calculate current carring capacity of cable and cable selection? 1) copper flexible cable 2) copper armoured cable 3) Aluminium cable
What are unstable systems?
How to select a transformer group to connect a 0,433 KV generation with 33 KV grid in bi directional flow of current
i have interview in Pepsi company what type of question will ask please send the question and answeer
at what rate the micro controller increment its timer....is it 1micro seconds or 1/(12*10^6) seconds