difrent between vcb acb sf6 and mccb breakers
Answer Posted / viraj
all are used to protect electrical equipment
in normal conduction all works as close switch but in abnormal condition they become open
vcb acb and sf6 are used with relay
vcb vaccume is used for arc removal
acb air is used for arc removal
sf6 sf6 is used for arc removal
mccb molded case circuit breaker to limit current
| Is This Answer Correct ? | 4 Yes | 4 No |
Post New Answer View All Answers
if the load is 80 amp for main fuse and 100 amp for breaker so how can we calculate the cable size (cooper ) .
What are your future plans for the company if permanently employed?
why high speed tripping relay will be used in tripping circuit why not normal relay
Why can't we parallel the secondary circuits of two voltage transformers?
anyone knows service engineer in chennai for EDM SPARKING MACHINE.CHMER PULSE CD 60 M.pL GIVE ANY CONTACT NOS
before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water
What is called grain-oriented laminations?
what is protection class current transformer.
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 model question rrb junior engineer electrical gr.II
State the other types of Air Conditioners?
what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks
When semiconductor fuse does save thyristor in each cycle of conduction? Why under voltage setting keep less in SPRS and more in DC drive?
How is the gain affected by the introduction of feedback in a control system.
Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??