Answer Posted / magesh
We use circuit breaker for short circuit and overload
protection
For OL -2.5 times of the rated I
For Short circuit-12times of I
According to this calculations breakers are selected
| Is This Answer Correct ? | 7 Yes | 3 No |
Post New Answer View All Answers
my b-tech percentage is 50%. what answer will satisfy the hr ?
What Normal(Tangent) towers and Tension(Cut-point) Towers?
we use capister for power factor. when we use capaciter in dg circuit than defect dg. can we use capaciter bank for dg circuit
For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?
what is the significance of tan&delta and how it performed in power transformer
pls,send the previous year written test questions.
1. for eg, capacitor is used for many purposes(it act as filter, oscillator, bypass capacitor, memory storage etc...) 2. Please tell me some example circuits for different uses of capacitor( whenever and whereever and however we used capacitor as a filter, oscillator tuning etc..) 3. similarly for inductor and resistors(it act as what?) and when and how we want to act as like that?, and how we can used these components depends upon our requirments with example circuits and explanation? design to act as these components depends
1.4 What is meant by CT knee point voltage and how would you determine it
what is value of Jin transformer
What is polar plot?
dg started in plc mode and load taken later one battery terminal connection will be disconnected by loose connection what will happen for dg and shall we connect battery terminals while dg in load time?
can anyone provide me a amf panel control wiring using ec-2 relay?
What is Surge Capacitor? Why it is require in Generator Circuit Breaker,inspite of surge arrester?
Why do we use center tap transformer that used with portable tools
At full load wat is the motor p.f And at no load will is the motor p.f?
