Answer / the pm

voltage transformer is generally used to step down the
voltage but potential transformer is used for both step
down the voltage as well as for protection basis.

Answer / nilesh kasar mumbai

VOLTAGE TRANFORMER STEPS UP/DOWN VTG BUT PT ONLY SENSES VTG

Answer / maharaja.a

THE VOLTAGE TRANSFORMER USED ONLY BELOW 110 KV PROTECTION
BUT THE POTENTIAL TRANSFORMER USED FOR HIGHER VOLTAGES.

Answer / vishal shirke

potential transformer is used to measure voltage difference
between any two points.voltage transformer is used to
measure line voltage.

Answer / sareer ahmad lone

Basically,both these transformers perform the same
function.That is for metering and protection.

Answer / nilesh shinde

as per construction both are same but potential transformer
is always step down type transformer where as power
transformer may be step up or step down type.

Answer / a.ragavendran

current transformer is a step up transformer,the primary of
this transformer consists of a large no.of thick wire
connected in series with line. In case of P.T is a step
down transformer,the primary of this transformer consists
of a large no.of fine wire connected across the line.

Answer / vishal sharma

but obvious spelling diffrence

What are the types of lighning arrestor protection system? how to choose that according to load?

2 Answers   SPL,

what is the knee point voltage ? what is differtial rela? what is impedance and % of impedane? what is the postive phase sequance ? negative phase sequane ? and zero sequance impedance ? what is sortcircuit calculaion? why take calculation? define stabilty test ? why? what sentivity test? define merz protection ? what is the burden ? class 5p10, accracy, metering ct take knee point voltage test thet time what heppan why dont take knee point test to metering ct?

0 Answers  

How earth fault & earth leakage equvpment are works?

5 Answers  

I do wonder why current is present in neutral wire?i check single phase lead current feeding air conditioner...on its phase its current was 10A while same was 10A in neutral...as we know in neutral voltage is zero so if voltage is zero then how current appears on amp meter? my second observation is (just imagination)when I touch phase wire it give me shock but when i touch neutral nothing happens although as above its carrying current(amps) third but with same logic...as in simple Alternate current sine curve there is + and there is negative peak.means every time phase changing so how come every time same phase and same neutral stand (pardon for english mistakes)

1 Answers  

WHAT IS THE MINIMUM IR VALUE FOR CABLE CHARGING

4 Answers   Google,

what is leading power?

3 Answers  

why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!

0 Answers  

what is stepping motor and where can use in electrical installation.

3 Answers  

how to calculate the KVAr for an motor for improving the PF

3 Answers  

what is the formula for converting KW into KWH ?

3 Answers   Blue Star, Essar,

I have an enquiry of develop solar power plant, 0.69/11kV, 1500kV/750/750kVA, Dy11y11 Transformer. I want to know what does 1500kV/750/750kVA means? Sorry if this is a noob question.

2 Answers  

if 20 hp motor starts directly delta connection.motor what will be the effect.

3 Answers   HP,