What is the function of UV coil ACB?
Answers were Sorted based on User's Feedback
Answer / satya dev
Under voltage coil is a protection relay which will give
the triping command to ACB during the Low Voltage in the
electrical system.uring the Insatallaion & commissioning of
UV Relay its need to set the Voltage Limit for it
operation.
| Is This Answer Correct ? | 92 Yes | 13 No |
Answer / guest
If you want the ACB to remain in ON position than the under voltage coil must be powered.
Like in the case of ACBs of generators.
If for some reasons the generator fails than we want the generator to be isolated from the system than here we use an under voltage coil ACB.It means if NO supply to under voltage coil than you cannot ON the ACB.
| Is This Answer Correct ? | 41 Yes | 9 No |
Answer / ashok h t
UV coil used for only under voltage protection in acb
| Is This Answer Correct ? | 13 Yes | 8 No |
Answer / naganath jamadar
The UV coil main functions in ACB under voltage and over voltage protection because some electrical equipments working following voltage so we are set a under voltage 380 volt and over voltage 440 volt between 380 to 440 breaker will be tripped than safe the valuable equipments
| Is This Answer Correct ? | 5 Yes | 1 No |
Answer / satya dev
UV coil is a one type of feeder protection device and The main function of UV coil is to safe the feeder and equipment,s during unbalancing of power circuit. It is installed in the ACB and set the required Pick up and drop value of voltage in relay.so the beyond the set value coil will be energize and trip the ACB.
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / navdeep patil
An Under Voltage coil is used to remotely trip a circuit breaker and some switch disconnectors. Schneider Electric uses the abbreviation MN for Under Voltage coils. An Under Voltage coil has to have a voltage applied to it to enable the device to close, and have the supply removed from it to trip the device.and also provide protection against under voltage.
| Is This Answer Correct ? | 1 Yes | 0 No |
can we apply kirchhoff's laws to circuits containing non linear elements?
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
What are the relays in ACB and VCB
why the energy meter disc rotates anticlockwise while reading
In a transformer ,when voltage decreases current increases. but this is a violation of oms law.why?
what is shunt trip coil? what was the function in rmu?
what is the purpose for open delta connection in potential transformer
What are the different auxiliary protections of a transformer?
What is the Difference Between the SCADA & PLC ? Both it also control and Supervise Then what Special in Scada & PLC?
in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly
What is the output of a transformer..??
How to calculate no of EARTH PIT? Describe the formula as per IS standard?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)