Answer Posted / virendra pandya
It is REM543 and higher I/O variant is REM545. This
numerical protection relay is used for protection of
rotating electrical machines either induction motor or
synchronous machine (Both motor and generator). REM54x is
freely programmable relay and functions and logic can be
programmed using CAP505 tool.
SPAJ is a series of SPACOM family relay working on current
inputs and communicating on SPA protocol. This family of
relays is designed for various feeder prortection
applications and not for motors
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.
Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?
What is the necessary condition for stability.
WHAT IS SHORT CIRCUIT STRENGTH OF 100 AMPS MCCB?
What are the basic component of a cro?
Explain how you decide what size of electrical wire do you need?
if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please
Please brief working principle & construction of permanent magnet AC Servo motor
If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?
witch pump used in wtp
For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?
Why Utility Distribution System in India is mainly at 11 kV? Why not Utility go for 33 kV?
how to calculate magnetic force genrated by a coil ?
What is the maximum operating temperature for a thermoplastic insulated cable?
HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com