what is the minimum dielectric stregth of transformer oil.
Answer Posted / pundlik wanwe
transformer oil BD value is a relative term and as a matter
of fact we can use the oil of different break down value
depending on the transformer voltage ratings.
1) For the transformer voltage rating more or equal to 145
kv BD value of oil should be more than 65 kv and moisture
content should be below 15 ppm.
2)for the voltage rating below 145 KV BD value should be
45KV and moisture content of less than 25 ppm.
More more information please refer
a) IS: 1866 for oil in service.
b) IS: 335 for new oil
| Is This Answer Correct ? | 28 Yes | 4 No |
Post New Answer View All Answers
What is effect of harmonic current (Draw by VFD) on power system/ electrical Equipments ?
what is the importance of Partial Dischage test for Electrical Equipments
what is the difference b/w UHVDC and HVDC(LIGHT)?
Define Electrical Insulation and examples of Solid,Liquid and Gaseous insulating materials?
Why it need to form a capcitor when it not been in use from three or two year. Plz describe it technically.
plz tell me,ht and lt panel terminals in substations explain beiefly
how to calculate micom relay earth falt time and current sertting
As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.
what is the difference between switch yard to residential area.and how much required it.
How may I get the maximum current capacity for a particullar size Alluminum or Copper cable if there is compulsion to use?
What is the instrument to check the rotating diode fuse of alternator in running conditions?
WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?
for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations
How to configure the drives in PLC, through Profibus commnication. And to how to address it?
i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.