Answer / raghavansa

Meggar

Answer / rajiv

Meggar is a brand name.

Answer / ramkumar

The resistance of high voltage insulators is normally in the order of Terra Ohms and cannot be measured by Megger or any other such instrument. What these instruments measure is only the surface resistance but what defines an insulator is its bulk or volume resistance. The ideal way is to put a guard electrode and ground the surface leakages and then measure the resistance using appropriate measuring set up.

Answer / pramila raj

The two instruments you will use most often to check continuity, or to measure the resistance of a circuit or circuit component, are the OHMMETER and the MEGGER (MEGOHMMETER).

Answer / saro

Ohmmeter

1) What is difference b/w impedence relay and differential relay? 2) what are substations equipments? 3) what is difference b/w circuit breaker and isolator? 4)what are the types of circuit breakers? 5) which medium is mostlty used in circuit breakers and why it is used?

1 Answers   NTDC,

I have two AC generators, the first rated 2680KVA for 380V/4345A/pf:0.7 and the second rated 3461KVA for 5500V/363A/pf:0.8. I want to parallel the two generator to a bus. The second generator passes through a transformer to down the voltage to 380V and a part of its power goes to another bus so that it's only a part of the total power of the second generator taht goes to the considered bus. I have two Basler DECS100 AVR regulator. How can I make the synchronization ? What others equipments must have ?

1 Answers   CST,

what is the installation process for lifts

0 Answers   DLF,

why Lightening Arrester Probe sharp at Top of telecom tower.

0 Answers   Reliance Jio,

What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?

0 Answers  

WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO

0 Answers   Jk Tyres,

How much current can a 3-1/2 core 100 mm wire carry?

3 Answers   Epitome, Focus, Focus Energy,

an off load but energized 11/0.4 KV, 1250 KVA T/F has a power factor of 0.65(capacitive)..!! why is it so, though T/F being an inductive device ??

4 Answers  

What is C curve and D curve of MCB?

3 Answers   GMR,

1. Why transfomer reting in KVA and Motor in HP

11 Answers   AirIndia, Jindal, Mind Tree,

In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.

0 Answers   HAL,

2 v/500amp/hr to 1.80vpc at 20 degree celsious 2v/5ooamp/hr to 1.75 vpc at 77degree farren .this is the capacity of a battery .what is the meaning of this . can i get a detailed explenation

0 Answers