is provided at a Neutral common point in the circuit from which various
connection are taken for the individual control circuit and so it is
given in a link form to withstand high Amps. But in the case of Fuse in
the Phase of AC circuit it is designed such that the fuse rating is
calculated for the particular circuit (i.e load) only.So if any
malfunction happen the fuse connected in the particular control circuit
alone will blow off.
Q:State the difference between generator and alternator
and alternator are two devices, which converts mechanical energy into
electrical energy. Both have the same principle of electromagnetic
induction, the only difference is that their construction. Generator
persists stationary magnetic field and rotating conductor which rolls on
the armature with slip rings and brushes riding against each other,
hence it converts the induced emf into dc current for external load
whereas an alternator has a stationary armature and rotating magnetic
field for high voltages but for low voltage output rotating armature and
stationary magnetic field is used.
Q:What is ACSR cable and where we use it?
A:ACSR means Aluminium conductor steel reinforced, this conductor is used in transmission & distribution.
Q:What is the voltage gain or transfer function of amplifier?
Q: What does the KVAR means?
A:The KVAR indicates the electrical power. KVAR means “Kilo Volt Amperes with Reactive components”
Q:Why use the VCB at High Transmission System ? Why can’t use ACB?
the thing is vacuum has high arc queching property compare to air
because in VCB ,the die electric strengths equal to 8 times of air .
That y always vaccum used as inHT breaker and air used as in LT .
Q:What is the difference between MCB & MCCB, Where it can be used?
is miniature circuit breaker which is thermal operated and use for
short circuit protection in small current rating circuit. MCCB moulded
case circuit breaker and is thermal operated for over load current and
magnetic operation for instant trip in short circuit condition.under
voltage and under frequency may be inbuilt. Normally it is used where
normal current is more than 100A.