Reversal of corrent feature in MCCB- What is reversalof
current -explain broadly.
am not getting ur question properly. but still, i wanna
mention one thing that i kno. Basically, there are two
kinds of mccb...conventional and current limiting...in
current limiting, there will be two contacts, lower contact
n upper contact which vil be in the form of strip.current
in lower n upper contact are opposite in direction. when a
heavy fault current flows, there vil b more repulsive
force.thus the contcts comes apart.this is one part in
working of that mccb.but am not sure whether this the
answer what u r expecting.
Is This Answer Correct ? | 0 Yes | 1 No |
How can you start-up the 40w tube lite with 230v AC/DC without using any choke/Coil?
For DG or Transformer body earthing, is it necessary to terminate the earth bus to earth pit directly? If not terminated to earth pit directly in earth pit and connected to any common bus strip which ultimately connects to earth pit, what will be the pros and cons?
why 6.6,11,22,33,66kv? what basis they have considered?
Why starters are using the machines???
Bhel supervision exam question: If 2 generators are working in a network. And if suddenly the field of anyone generator weakens. What will happen in the network? 1. The generator will run as motor 2. The generator will run as motor in reverse direction 3. The generator will take lighter load 4. The generator will take more load
Give some differences between open loop and closed loop control systems.
How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"
How CFL &T5 tube light glows?
In 400KV Switchyard, we have used Circuit Breaker With PIR, what is the significance of PIR & why they'r used?
whats the existence of reactive power and when it arises?
In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.
how to calculate circuit breaker capacity