Answer Posted / pratik
Actually the master tripping relay is connected in
conjunction with all the abnormal conditions which are
probable to occur on the system & operates when any of the
concerned fault occurs & sending a tripping command to the
CB.In addition to this it also locks the closing circuit of
the CB so that if any personnel or external control circuit
if tries to close the CB,the CB won't close until the fault
is resolved & the relay is reset.
| Is This Answer Correct ? | 8 Yes | 3 No |
Post New Answer View All Answers
why ct ,cvt should be stored in a vertical position?
what will be happen if earth point is being used for as a neutral point for raw power , and same will be used for ups earthing
Connection diagram for KW meter and Kva meter
do we use neutral grounding for resistive balanced load? if we use what happen?
How to derive detailed design of Suitable bus Bar for 100A for 6.6KV?
what is meant by poly phase induction motor ? how its operating by single phase or three phase?
What the difference between ac and dc inductor an capacitor
A 2083kva AVR was tested, phase to ground shows continuity, what is the implications
Can clean earth cable be considered as low current cable
Operation of isolators.
What is inductance?
What are unstable systems?
any idea abt REVERSE METERING concept.........?
Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV
WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING