what is the function of 1 phase preventer?

Answers were Sorted based on User's Feedback

what is the function of 1 phase preventer?..

Answer / melwyn

to prevent load(motor)of 3 phase from failing of any one
phase.it is connected to 3phase load,when one of phase is
gets failed(due to burned fuse or contactor problem)this
device senses and it will turn of the system

Is This Answer Correct ?    53 Yes 2 No

what is the function of 1 phase preventer?..

Answer / rakesh kumar c attingal

single phase preventer used to stop the working of 3 phase
motor in the absence of supply in one phase.

Is This Answer Correct ?    48 Yes 1 No

what is the function of 1 phase preventer?..

Answer / anupam

In 3 phase system..if motor miss one phase..then motor will burn..so spp is used for the safety for motor..if one phase is missed..then the system will tripped or disconnected.. So motor will not burn..

Is This Answer Correct ?    4 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions


5 Answers  

In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???

0 Answers   RRB,

why we connect the capacitor bank in star , not in delta in any system

2 Answers  

r we are using in gas turbine mark (5) frame (6) (made in india Bhel 1997) Ā

0 Answers  

Input power is 380 - 450 V but with 45 - 55 Hz frequency - desired output is 415 V and 50hz with 1% variation permissible. CVT / Servo dont stabilize the Frequency - what is best solution??

7 Answers   IOCL,

what is the dedicated neutral earth in ups? y its required?

4 Answers  

Recently we had experienced following problem All RCCB breakers (connected to the load as well as spares) connected to various UPS systems at various floors at a high rise building tripped during a power break down and upon starting up of generator.This Generator is recently inducted into the installation. Can any one explain the reason behind this tripping. Regards Viswanathan

1 Answers  

what is the burdon in case of relays?

1 Answers  

What is the difference between UPS & inverter ? which UPS is better and whos got the edge ? what is the difference between & inverter ? which UPS is better and whos got the edge 12 V , 24 V , 36 V etc what are the advantages of 12 V, 24 V , 36 V etc and what are the disadvantages of 12 V, 24 V, 36 V etc thanks

0 Answers  

Between Star-Delta & Star-Star Power transformer which one is efficent for Earth Fault?

10 Answers  

what will happen if i connect or change line with phase terminal

1 Answers  

what is the difference between electrical & electronics

245 Answers   TCS, Satyam, Infosys, GDA Technologies, Banking, MBA, Snow White, Axon Constructions, Satyam Tech,

  • Civil Engineering Interview Questions Civil Engineering (5073)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4442)
  • Electrical Engineering Interview Questions Electrical Engineering (16581)
  • Electronics Communications Interview Questions Electronics Communications (3915)
  • Chemical Engineering Interview Questions Chemical Engineering (1091)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (214)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (258)
  • Instrumentation Interview Questions Instrumentation (2986)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (122)
  • Power Plant Engineering Interview Questions Power Plant Engineering (170)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (0)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1376)