what is the operation of Control Module(CM),MONITOR Module(MM), MONITOR Module DUAL (MM2),Signal Module(SM),Isolator Module(IM), please some one reply me.. the operation and application of these in FIRE ALARM SYSTEMS...
1 37005i purchase a microwave which is 50/60Hz but Current Setting 60Hz in my country we usually use 50hz, can i use AVR to solve my problem?
2 4273What will be the minimum megger value of 1700 KVA Transformer? a) Do megger value varies according to climate conditions and area . b) If megger value is 100 mega ohm is it good for new transfomer. Explain?
4 5980i am using auto transformer for starting of induction motor to provide reduse voltages...but the principle of a tansformer according to definition"which transform energy to on circuit to another circuit with constant power and constant frequency". so if i am using reduse voltage then current obsely hige because power is same.but we use auto transfarmer for starting of induction motor to give low current.but here according to definition we are giving hige current.
1661Whats the use of earth pits? and it will function? whats the natural earth value? How to improve ur earth resistance?
3 19886What is the differentional relay...what is the work of this in power Tx. how it is works..
ABB,
1438Post New Electrical Engineering Questions
why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done)
What is oscillator circuit?
Lt motor sfu flashing reasons?
What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.
Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.
if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.
what is the difference between electrical choke and electronic choke?
WHAT IS THE USE OF PIG TAIL IN WINDOW CT ?
what is vtg limit of earth and neutral at transformer side?
How much should be the load percentage for 15kva Inverter and Iinut & I output load with Calculations
A ii kv 1200 A Breaker combination fixed in a cubicle. How many ampere Fuse is required? If fuse is not using, Why?
what is the earth current,reverse power,electrical trip generator short circuit,low voltage, high voltage please discribe me
what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?
What is core CT & it's function?
what the function breaker failure scheme, how is it operated
