how to select fuse in any circuit? if with fomula ?and
examples also
- 1 Answers
- 3587 Views
- I also Faced
- E-Mail Answers
Answer Posted / sagar upadhyay
Depends on the maximum load current. For example if the
maximum load current is 4A then a fuse of 5A should be
chosen. But it depends on other factors also like equipment
to be protected etc
| Is This Answer Correct ? | 2 Yes | 2 No |
Post New Answer View All Answers
in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?
Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.
can anybody sent me power grid questions. what subject should i prefer for preparation?
iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation.
What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV
When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number
There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.
What is the typical enclosure type used for Indoor switchgear / Outdoor switchgear Units? - In Onshore / offshore Units?
If there is major % of Voltage harmonics in the system, how can it be control or reduced?
What is self exciting?
is the value of inductance depends upon the value of thitha in doubly excited machine??
how to store the thunder power?
What is a parabolic signal?
How can we measure the residual voltage in dc machines?
What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?
