Answer / philimon mathias

cctv means closed circuit television

Answer / fahad ashraf

Cctv camera is close circuit television Cumunity Advance Microbeale research analysis and CCTV advantage that you can easily see small small to thing for big area.
Thank you

Answer / abdul

The main purpose of Cctv is to monitor theft.
If u installed Cctv in your surroundings if someone looks the camera means they see them like police standing in undercover.

Answer / farooq

Mohammed Farooq

Answer / sbb

CCTV is instrument is used mainly for industrial purpose.For
ex. if we take a Cement Plant in Kiln CCTV is used to
monitor the burning of Clinker and know the exact condition
of Kiln internally.

Answer / alavalathi

cctv-closed circuit television...application:in bathroom, ladies toilet, ladies dressing area

what is the constructional difference between a power transformer and potentian transformer?

0 Answers   BTM,

why Lightning arrestor are made by 2 seperate stack of inslutor but why cvt are in single stack of insulator.

0 Answers   Siemens,

Which Motor used in Fan's Motor ?

3 Answers   Matsui Technologies,

What is Minimum permicible meggering value for following 1) LT Panels (Ph to Ph / Ph to Earth) 2) 11 KV, HT Panels (Ph to Ph / Ph to Earth) 3) 11 KV Cable 4) LT Cable

1 Answers   BFL,

what is the formula of high voltage testing of three phase induction motor?

1 Answers  

What is the difference between SSR drive& AC drive?

1 Answers   ITC Infotech,

Why starters are using the machines???

5 Answers   Alstom,

What is MODBUS Controller Used for BMS Mointoring???

2 Answers   Emerson,

in short circuit. test of a transformer 5 to 10% ofvrated voltage is used why??? if we use rated voltafe then what will be?

1 Answers  

Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............

0 Answers  

Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?

0 Answers  

i want to know that how the height of Ct ,cvt ,LA calculated on the basis of creepage distance

0 Answers   Vedanta,