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 / mukund
high potential test carried between line-line, line-
neurtal,line and neutral to graund on any control panelto
check insulation between live conductors and enclosure body
at hv like 1.5kv and onward depands on system voltage and
local standard, it is carried out also on control wiring too
e.g. from 300 to 600v it need 2.7kv test for 1 second and
2.4kv for 1 minuts,note when this test have to do test job
must disconnected from line voltage,it is most likely
megeer test, after testing it need to discharge tested line
to graund
Is This Answer Correct ? | 37 Yes | 7 No |
Post New Answer View All Answers
When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?
Why the efficiency of generator is more than motor in swinburne's test
Two liquids hot and cold in two vessels are there and an metal bar acts as a conductor of heat between the two vessels. what happens then. what happens after 24 hrs?
How eddy current generation support the idea of train braking?
Explain what is electric traction?
State The Difference Between Generator And Alternator?
defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?
could an induction motor be used for regenerative braking in electric-train control? in this type of application would some scheme have to be devised to obtain low synchronous speeds while braking? would induction-motor drive, therefore, be suitable for passenger service?
What is CCM in Electrical ? where can we use this material?
PLEASE ANYBODY HAVE ELECTRICAL CIRCUIT DIAGRAM FOR CHMER PULSE CD 60M SPARKING MACHINE.PLEASE MAIL ME SUPRIYAAYYAPPAN@YAHOO.CO.IN.
i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com
How much of the total hydro power potential has been exploited so far in india?
why we use Test Terminal Block in 11 KV and 33 KV electrical panels.
what is the necessary of using inductance property in transmission lines even through resistance is used to opposes the high current flows in that?????
i need to give section engineer (electrical engineer) for RRB. Please suggest some book