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
What is main cause of cable's terminal point burned in Lug on high temperature although lug and cable selection is ok as per stantard and also tightness is ok as per situation. so please take in deep and tell correct answer thanku.
Why do you have to use Protecion relay with the function MTB ( Mechanical Trip Button ) for electrical system.
Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)
How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.
What is the formula to calculate a three phase alternator
limitation of conductor height on ground when we consider EMC
How do you select the pickup value of the relay?
can anybody send the rrb chennai &rrb bopal question papers of 2006&2007.My exam is on 12 oct 2008.Its urgent
how to revers the direction of single phase motor
for opening electrical shop, tips needed.
What is the slip speed?
why zero sequence impedance measurement is not applicable for single phase GT
why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain
what should be the no load current for 3 phase ac motors ranging from 5 kw to 1000kw?
what is cause of static electricity? I experience shock when i touch metal equipment in a room ,furher check shows earth leakage showing 80ma at the DB near to the 400 MCCB?