What is the safety factor is to be consider while selecting
the switchgear and protection for electrical system
Answer Posted / guest
Generally when we consider a power system we need to
consider all the components trs gens and tr.lines.The
safety factor is defined as the ratio of min.fault current
to excite the relay/ desired value when the desired value
exceeds the relay operates, It is >1
| Is This Answer Correct ? | 1 Yes | 3 No |
Post New Answer View All Answers
which motor have relatively high power factor and what is reason for have high pf? 1.capacitor run motor 2.shaded pole motor 3.capacitor start motor 4.split phase motor
what is sevice settings for mccb?How can be it setted?
When is lag lead compensator is required?
What happened ,If 3 phase clearance not maintained in 33KV Line,11KV LIne etc?
What are the essential characteristics of signal flow graphs?
Why synchronous motor is used in power factor improvement,dc series in lift
What is real time power factor control panel(RTPFC)?
what is a bus riser in power system and why it is used
in star-delta tranformer,if the input of star connection is 400/7v 3 kva then what is the output of delta connection?
How can calculate the rating of a servo stabilizer for given a specific load
how to decide choke rating for drive?
I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?
what is lrs tank water resistance.
Difference between drift current and diffusion current?
I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?