What are various impedence in any machine
Answers were Sorted based on User's Feedback
Answer / vivek
in a synchronous machine , there are three kinds of impedences
1. Xd - synchronous reactance ; (used in steady state
modelling )
a special case is salient pole machines where sync impedence
is split into direct axis impedence and quadrature axis
impedence , ie Xd and Xq . see double reactance theory for
more details
2. Xd' - transient reactance ;(used in transient modeling)
3. Xd'' - subtransient reactance .
all other machines have three kinds of impedences which are
used in power system modelling
1. positive sequence impedence
2. negative sequence impedence
3. zero sequence impedence
Is This Answer Correct ? | 24 Yes | 0 No |
Answer / r
for a syn machine - syn impedance
fictious impedance
load impedance
normal case - input impedance
output impedance
transmission lines- surge impedance
load impedance
Is This Answer Correct ? | 10 Yes | 3 No |
only some transformers and some generator requires NGR why?
how to find the 2500 KVA transformer rated primary and secondary volt and current?
what's burden resistor, why it's used?
in dc machine airgap is there b\w stator and armature but by conduction emf is generated how & what is conduction
single phase 230v three phase voltage 415volt why we aren't used line voltage 690v?
What is full form of G.O.D in 11kv distribution?
9 Answers GOD, MSEB, Shyam Indus Power, STL,
How to design the no. of ceiling fans required in 5mtr X 10 mtr X 3 Mtr hight room?
How does a digital electronic meter work??????
If NO contact of relay gets supply from other sources or other part of circuit and at a time relay coil activates,then current will flow in which direction & will it cause to damage relay??
What is the significance of 3.5 core cable ????
8 Answers Intelux Electronics,
Is a current transformer step up or step down ?
What is basic difference between Soft Starters And VFD drives?