What are the difference between off-load tap changer and
on-load tap changer in transformer?
Answer Posted / vinoth kumar.n
In off load tap changer the transformer will be in off
condition,it safe for equipment and personal safety,,
In on load tap changer the transforme will be in running
condition,there is no interruption of power supply,but
there is unsafe for windings.
Now a days 230kv are and above prefering only off load tap
changer,The tap changer provision will be held on HT side
only.
| Is This Answer Correct ? | 3 Yes | 7 No |
Post New Answer View All Answers
How to calculate the no of Ceiling fan (1200mm sweep) per unit area?
what is the eight bit unit?
How to apply 'c' license and also explain what is difference between 'c' and 'b'license.i am also working in one of the private company.i have finished my diploma in 2014 .i have already finished in ITI electrician course.....
testing of Vector Group – YNaoD II
how we can do the insulation on secondary of ct explain and so that tan delta will within limit
HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT-SWITCH BOARD,MLDB,ACB,BUSBAR,ETC,......?
how oti and wti connections are different from each other?
How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.
in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?
If a shunt Dynamo has induced emf 100V and 0.4 ohm resistance and battery of accumulator of open circuit emf 110V and 0.5 Ohm resistance are in parallel what is common terminal potential difference?
what is the principle of operation of CFL ??
A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.
does any one know where we can purchase insulation oil for high voltage oil filled cables
In vapour absorption refrigeration machine fluids used are
what is (+) and (-) in generator field detector stand for?