800a siemens vcb in our company can not be closed electrcally
an mechanicaly cc and oc coils are found ok. why?
- 2 Answers
- 4741 Views
- I also Faced
- E-Mail Answers
Answer Posted / prakash gokhale
Please check for the mechanical assembly of the VCB. Some
times due to some misalighments breaker can not be closed
mechanical or electricaly even if CC & OC are ok.
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
what is the main function of capacitors in mccs.
what is meant by 2 within a star in a voltmeter dial?
What is the important precuations need tocarried out while working with Electrolite in Battery PM?
2 v/500amp/hr to 1.80vpc at 20 degree celsious 2v/5ooamp/hr to 1.75 vpc at 77degree farren .this is the capacity of a battery .what is the meaning of this . can i get a detailed explenation
explain why core loss of a transformer is almost constant under different load conditions when connected across a constant voltage and constant frequency.
what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????
what is earthing transformer? draw the winding dia.of earthing transformer.
Can we Co-ordinate relay in Load Break switch?
Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?
What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer
WHAT IS IM (INDEX OF MOUNTING )IN MOTORS
can you please send me the technical questions and aptitude questions of honeywell and jindal steel electrical engg. question paper my e-mail ID is(kkesavanraj@gmail.com)
What are the three major categories of error?
Can any answer me ,What will be the range of C.T coil for L&T energy meter EM301 used for 180 kva DG set
In diesel generator how AVR get voltage to excitation. And basic diagram DG EXCITATION CIRCUIT.
