why we are used D.c. voltage in L.T.side or controling
side.we can use UPS also ,in place d.c. voltage
- 5 Answers
- 7290 Views
- ABB, I also Faced
- E-Mail Answers
Answer Posted / mashani
UPS is not DC it's AC....this equipment usually to support
Control system such as Computer Sentral Control....this
equipment is supplied by battery which the battery is DC
source.....and convert by inverter inside UPS to AC source
to supply the emergency equipment...
emergency equipmen is equipment where may not interrupt
even the main source is blackout....
if you mean DC source this could be battery
charger....battery charger ussualy used to operating
controoler....such as PLC, also some electrical equipment
is needed DC source...such as Circuit breaker, ACB(Air
Circuit Breaker) motor inside the breaker is using DC source
| Is This Answer Correct ? | 0 Yes | 4 No |
Post New Answer View All Answers
What is load boxes ?
how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?
what are the difference between AC lamp and DC lamp
what are the available sizes of pin type terminal lugs in the market today?
How to know Resistance and Reactance value of main and aux winding of single phase capacitor start capacitor run induction motor to find capacitor value?
How to do stting of vl250 siemens MCCB
What is nichols chart?
how does grading rings & spacers in transmission line works? Working Principle?
What does the a,b,c of 95a,95b,95c relays denotes?
An automatic water heater is an example of which type of control system?
Why transformer used in UPS??
what is the concept of directional power?
How to use earthing on shipments.
What is a surge supressor why its is used in synchronous generators
How to calculate the heat load for a electrical room
