While connecting the flood light plug on to the 415 V
distribution panel,there was spark and the cable got burnt.
Three ignitors of the flood light also burnt of. The lamps
are of 400 W (total 6 lamps) connected through 1.5 mm2
cable. The plug was immediately removed from the circuit.
There was a 30 mA RCD connected and a 250 A MCCB; however
both did not trip. What could be the possible reasons for
the circuit devices not to trip?Can someone assist please.
Additional info if needed can be provided.
Answer Posted / albaloshi4u
check flood light another distribution box whether your flood light is working properly or faulty and also check your db phase voltage.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
whether starting current is limited to rated current of motor through soft starting or it exceeds the rated current?
What is the difference between security constraint unit commitment and security constraint optimal power flow?
how to calculate power consumption in slip ring motor at different step
I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com
how to calculate
In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc
State the other types of Air Conditioners?
In india, according to trade theory above 5 HP motor reqired star delta starter. But we R connect 11 KV motor with 14MW in Direct to line ( With VCB starter combination) Can U Guess, How it is possible ?????
how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets
What is the differentional relay...what is the work of this in power Tx. how it is works..
If oil and air can withstand a high MeV when used as an insulator in a transformer, what are the values of how high for each material?
how we can set the IDMT relay.
what happens in the short circuited secondary transformer,if the resistance of the short circuit is increased gradually?
How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"
what are problems caused by the pdu in rack server