Answer Posted / nirmal karmakar

Lightning Arrester or Surge Arrester is a electric device
which protects the equipments from extra high voltage or
surge voltage. It provides a low resistance path for surge
voltage or high voltage. When lightning occures then for
micro sec a very high voltage produces which may damage the
equipments. So to protects such equipments LA connceted
Parally or shunt with equiments.Although it provides low
resistance path for EHV, so all surge voltages directly
grounded and equipment save from damage.

Why we use ups battery and dsdb battery in thermal power plant

2086

---

What will be the voltage impact on secondary side of two transformers with different vector groups when both voltages are compared.

1999

---

what happen if the supply is given to the stator of the 3phase induction motor with out assembling the rotor ?

1913

---

What is tranformer differtial?

2020

---

Hi,iam a diploma in electrical engineering.rtd from indian air force in apr 2007.prsently working in reliance next link as a network maintenance engineer since 2007,can i get a job in motherson sumi.

2372

---

how is control wiring coding is done in a CRP panel ?

2022

---

Compare jfet’s and mosfet’s.

1281

---

Whether amorphous core transformer is commercialized or not:Name of company making amorphous core transformer and what are different rating?

1799

---

How to select transmission line type (i.e. 11kv or 33kv) for new established industries

2030

---

can any one know is sbi interview based on merit or based on roll number

1987

---

How grounding is different than earthings?

1161

---

In radial network the source is fed from 1 end both ends at central

2121

---

Why star delta starter is preferred with induction motor?

1109

---

which connection is safer series or parallel?usually which connection we prefer at home?

9995

---

What is meant by cold loop test in instrument

2603

---