Answer Posted / ripul ghosh
nowadays 24V DC relays are used compared to 230V what was used before..relays are mainly there to isolate the controller from high power lines,
The signal from the controller will come to the relay and it will get energised to drive the output load.
Is This Answer Correct ? | 31 Yes | 1 No |
Post New Answer View All Answers
What is the main difference between Cavitation and Flashing?
how can leve transmetter calibate in feild .and also put cv and flow plz .....
why we should maintain neutral earth voltage below 1V while calibration? why cant it be 1.2V or 2V
What is the function of solenoid valve in on/off & shutdown valve and why it is not used in control valve normally?
What are the different types of thermistors used in industries? How to the operation of typical thermistor?
What are the interlocks we have to check during the start up of LP/HP compressor?
Why does a pressure gauge installed on reactor, doesn't have any vent line below to release the pressure? Is it any kind of designing mistake or it actually does not require any vent line? And if it does not require any vent line below it then how we are gonna release the pressure built inside the pressure gauge?
What is zener diode? What is voltage regulator?
what is the working principal of pribe
detail of mass flow meter pricipal
few questions on RS 232,1 question on relationship of impedance and turns ratio, many questions on flowmeters
How RAL(Rotary air lock)works in cement industry?
Hi i m B.E. In elect. & comm. I m workin in bio mass plant from 6 mnths as inst. Engg. but now i m in dept. Of operation as shift engg...which is best operation or inst. 4 me? M confusd..plz help and reply me..
why micro controller 8051/52's clock frequency is internally divide by 12 ?? and why it is further divide by 32 in UART serial communication ??
any questions on motor and energy conversions machines?