Answer / muthukumar

In other end we have the resistor for current limiting

Answer / kalolia alap r

in the tester rated 230v,and suppose resistance of tester in
megaohms,so the current will be less than 5 mA,it create no
hazard to human body,sowe don't get shock...

Answer / rajeev.p

The other end of the tester,supply came through a
resister.There for the voltage is reduced by resistor.

Answer / nethaji

Because in other end resistor connect with series

Answer / nethaji

Resistor

Answer / shashidhara

Rating of voltage is 230V only. The current is low enough not to hurt us and just enough to light up the bulb. But, the same tester can't be used to check higher voltages. We use only the voltmeters and other devices to check supply in higher voltages. If we use tester, we get shock at those high voltages.

Answer / yogesh raste

Since our body resistance is very high we do not expeince a
shock.

what is mean by NTPC?,why didn't electric shock in train?

7 Answers  

Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.

0 Answers   Piramal Healthcare,

Why Ferranti effect not occurs at full load?

4 Answers   L&T,

Write a note on materials used as a fuse element.

0 Answers   Bhel,

Can a dc motor works as a dc generator. If yes , then how?

2 Answers  

Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault

0 Answers   MPSEB,

What is the basic difference between directional and non directional over current protection?

1 Answers  

30 kVA and voltage 380/220VAC how to find out kA?

5 Answers  

Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.

0 Answers   DAE,

in HVDC transmission system ,monopolar link has one conductor usually a negative polarity and use ground or sea return ?through negative polarity we could pass electricity or not yes means how it is possible

1 Answers   Gyana, NNN,

The normal highest generated voltage in India is a) 6.6KV b) 132KV c) 11KV

13 Answers  

one electromagnet is called

0 Answers