why VCB are not used in 132KV system(above 33KV system)
- 6 Answers
- 14622 Views
- Al Ahleia, I also Faced
- E-Mail Answers
Answer Posted / deepak jha
Degree of Vacuum required for quenching of ARC at 132 kV
level system fault is very high and its very difficult to
maintain that much degree of Vacuum so don't use VCB in 132
kV level. we generally used SF6 for this purpose.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
In parallel operation time both NGR’s close or not close if both close what will happen
3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??
How do we arrive at selecting reactive capacitance value as 30% of h.p rating of motor?
What happened when capacitor connect series in ac circuit?
what is current check gurd relay?
What is the role of power pack in substation protection system?
what r PID controllers?why they r used?what is there purpose?plz Explain in detail
Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?
What are dcs and plc?
How can we increase the capacity of Energy.?
Define Electrical Insulation and examples of Solid,Liquid and Gaseous insulating materials?
Why we are use dol starter up to 10 hp
formula for calculation of switchgears(i.e. contactor, fuse, cb, relay etc.), if load current is given?
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?
Define load factor?
