1)what is hypo test. 2) which cable need to hypo test.3)
when hypo test can be done before or after glanding.4) what
is the purpose of hypo test.

Answer Posted / shams

hypo test is mostly used when any new cable is used or any cable which is repaired like tertiary cable in transformer.it is used to test the leakage current.20kv to 100kv dc is applied through hypo device to the testing material then the hypo device shows us the leakage current of that material

Is This Answer Correct ?    29 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How servo stabilizer works.

1642


what do you mean by plant earthing system.

1548


How to select transmission line type (i.e. 11kv or 33kv) for new established industries

1606


What does ampere turns shows?

663


I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?

1744






How do you select the pickup value of the relay?

819


WHY NUTRAL GROUND SYSTEM USED IN 33KV SYSTEM

1804


State how to produce a constant rotating field by application of alternating currents to stator armature of a three-phase squirrel-cage induction motor

2010


if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.

1512


List few applications of d.c series motor?

708


what are the parameters plays a major role in Potential transformer Burden calculation??

1615


What is the permissable nutral current of three phase system as per IS standards?

1533


How to decide cable tray size?

727


can u describe the method used for protection of transmission line.

1623


why are the maintaine power factor and how can this control and this is how work.

1490