Answer / siddu

NGR Means Neutral Grounding Resistor, used for higher
rating of transformer because to allow the heavy fault
current through it, during the fault so -----NGR resistane
value so less Ex. 9.5 Ohms

low resistance allow the fault current easily

Answer / gunasekaran

NGR to limit the fault current

Answer / raviteja nowduru

NGR stands for neutral grounding resistor.it connected
between neutral point and ground.it is a type of grounding
to limit the current not to eliminate fault currents.

Answer / meka sekhar

NGR means neutral grounding resistors normally connected in
neutral circuit of transformer & generator to limit the
earth fault current. After installing NGR in neutral
circuit, earth fault current will be in the range of few
amps i.e. 5A t0 300 A.

What would cause a 240v choke that should give 110v out on a 16w lamp to gradually increase to 160v?

0 Answers  

---

we use capister for power factor. when we use capaciter in dg circuit  than defect dg. can we use capaciter bank for dg circuit

0 Answers   Syncom,

---

what is the mazor difference between the induction transformer and synchonous motor?what is the similarity between them?

1 Answers  

---

what is slip what is the use of slip?

1 Answers  

---

why we are connecting the alternator to a steam turbine of higher RPM then the rated RPM of alternator? For example:( connecting 1500 rpm alternator to 7600 rpm steam turbine). we can directly connect the same rpm turbine to alternator know??? is there any special reason ???

2 Answers  

---

for 4 MVA , 33K.V/6.6K.V transformer. secondary side the connected load is 3000H.P. What is the rating of capacitor bank to be insttaled.

0 Answers   SCCL,

---

Please tell me if you are electrical engineer,and you are appointed for the maintainance of Electrical Power plant,then which parts of the plant deal with you.Also tell how these parts/components work.

1 Answers  

---

what is the difference between effective earthing and resistive earthing?

3 Answers   REL,

---

why the electric train touches only one conductor n where is the neutral n it will be running 3-phase or 1-phase?

3 Answers  

---

What are the Full Forms of TVM, MTL, CVT ?

0 Answers  

---

what is power factor? how can we correction the power factor if this is high or low? If anyone know please please send the answer on my email id ( kumarkirshan@in.com )

5 Answers  

---

what is different between DIGITAL and ANALOG?

3 Answers  

---