Interested to Buy Any Domain ? << Click Here >> for more details...
what is buchholz relay?what is it used for?
- 8 Answers
- 30324 Views
- Engineers India Limited, NFCL, I also Faced
- E-Mail Answers
Answer Posted / humayun khan
Buchholz relay is a safety device mounted on oil-filled
power transformers and reactors, equipped with an external
overhead oil reservoir called a conservator. In case of
internal fault such as overheating, arcing or decomposition
of insulating oil gas gets accumulated on the top of the
relay and forces the oil level down. A float switch in the
relay is used to initiate an alarm signal.
Buchholz relays have a test port to allow the accumulated
gas to be withdrawn for testing. Whereas air found in the
relay may only indicate low oil level or a leak.
| Is This Answer Correct ? | 11 Yes | 0 No |
Post New Answer View All Answers
A double circuit with dog conductor 66KV Transmission line from wind farm evacuation to feeding substation having capacity of 25MW for transmission. Can same transmission network be considered for further expansion of Power & how much in MW. If we need to expand next 10-15 MW more will there any augmentation is required in transmission network? Kindly reply asap.
Differnce between negative Pahse SequenceFunction and unbalance Function?
Define sensitivity?
why induction motors are rated at 0.8 power factor.
why power not passes in plastic and rubber material
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.
Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV
If we are given a 10 amp cable type and asked to calculate the number of cores used and the thickness of the cable, how do we do it?? please help...urgent!! i hope the question is clear enough!!
can i connect the two phases of scott connected transformer,if not why?
Is it posible to instal one more SMDB from the existing SMDB and is it practical.
why the protection turbo generators is most complex?
which capacity of RCCB used for five thousand watt electricity load?
What is the difference between DOL starter and star delta starter
what is meant by flywheel and its role in retardation test
how to calculate current and voltage in a same circuit?
