What is the major difference between P.T. & C.V.T ? Why CVT
is used in HT Transmission line in place of P.T.?
Answer Posted / roshan khadka
CVT means capacitive voltage transformer which consists of
stack of capacitor connected in series and is used where
PLCC is used so that no additional capacitor is required in
PLCC. Also during transient condition, voltage build up
process in capacitor is slow which limits fast steepness
fronted wave. The protective device operates within this
voltage build up process.
Whereas, PT means simply potential transformer and is used
where only measurement and protection is required.PT is
cheaper in comparision with CVT but in expense of cost, CVT
can be used.
Is This Answer Correct ? | 19 Yes | 7 No |
Post New Answer View All Answers
During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP
How time response of the system is divided?
current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer
Can Anyone Answer anyone of these ? Q1) why direct SOLUTION of Load Flow Studies in Not Possile ? Q2)Why majority of Buses in power system are load buses Q3)Why one of the buses in Power system is taken as reference bus (slack or swing) Bus ? Q4)Bus Admittance Matrix is a sparce (means it contains some zero elements ) matrix , give reason
what are the reasons of CT circuit faulty in busbar protection scheme?
How much of the total hydro power potential has been exploited so far in india?
Define resonant frequency?
for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations
why lightning arrestor are made in two stack of insulator but why not cvt
what are the applications of PLC?
what parameters are should nessary for control technic dc drive(in rolling mills)?
why don't we use the generator as a motor? and what will happen?
why we permissive overreach in distance protection.where it is applicable to use in long r short lines
what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....
What is meant by reverse polarity and how it can be fixed?