Name different types of fault and which instrument is used
to measures earth,short,open cicuit fault?
Answer Posted / barkha jha
Above answer is very correct
i want to add some value
for short circuit protection we use fuse as primary
protection & overload load relay for backup protection
for earth fault- we check phase to ground insulation
resistance,in case of earth fault its value comes to zero
For open circuit - check the continuity of supply
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
does buccholz in a transformer use batteries
A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.
Draw a SLD of HT distribution EB grid up to users Transformer?
Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks
Can anyone explain me about the RLC based Impulse high voltage generator and how to and operation of Series resonant High voltage reactor...?
What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?
What consists of 2 or more thermocouples to be connented series?
hai...... tis is Hemanth. jst now completed electrical engineering... i wanna to apper for ap tranco exam... plzz send me the previous q's paper link......thanx in advance.
What is the difference between cylindrical-type and sandwich-type winding?
what is the use of power transformer in GSS.
explain single phase series motor
How can calculate the rating of a servo stabilizer for given a specific load
how many load we can take for lighting
What are the applications of the electric motors?
We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?