Answer Posted / antu paul
B,C,D Curves are characterised with instantaneous trimping
current and is as below
for B curve-above3*In-upto and include 5In
for C curve-above5In upto and include10In
for D curve-above 10In upto and include 20In
for Z curve 8In-12In for inductive loads
K curve for semiconducting devices
where In is the rated current of MCB.
| Is This Answer Correct ? | 18 Yes | 8 No |
Post New Answer View All Answers
Explain Energy and Power signals?
i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle
What are the different types of controllers?
Can RCD's used to protect the VVVF drive if not why.
how much excitation voltage required to generate 1mw power?
How much current will a 5 HP delta connected motor at no load will take?Is tat need a starter
What is the simplest formula to calculate the rotor diameter of a synchronous generator?
What is lighting kitts.
How to select a transformer group to connect a 0,433 KV generation with 33 KV grid in bi directional flow of current
Formulae for calculating the transmission line losses for different voltage levels
we all know voltage is a force(emf), and the force always devides if 2 or more than2 loads are there but why does the voltage remains same is parallel, it must devide na ???
Anybody tell me about modbus hex address of l&t trivector meter er300p??I want to read voltage,current,kwh etc via rs485...If anybody have a manual then send on my mail..Brijeshmodi18@gmail.Com
what is protection class current transformer.
Tell me about ur past electrical maintanence job
Who are the manufactures those manufacturing 3Cx2.5sqmm FRLS cables. I heard about FRLS technology adopted only in wires useful for wirings