What is the difference between voltage transformer and
potential transformer?
Answer Posted / farhan
Actully we can not make a meter which can measure 11 kv, 33
kv or above. so we use potential transformer to step down
the voltage level to a measurable value by the measuring
instrumen. other wise voltage and potential transormer are
same.
Is This Answer Correct ? | 2 Yes | 6 No |
Post New Answer View All Answers
how desiel generate sart fail of eb?
List few applications of d.c series motor?
what is the role of energy meter in distribution system ?
I AM A ELECTRICAL PANEL BOARD DESIGN ENGINEER.IF I GO ANY INTERVIEW ,TECHNICALLY WHAT ARE QUESTIONS I WILL FACE FROM INTERVIEWER?
how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence
In the Variable Voltage Variable Frequency Drive, how the Voltage and Frequency varied ? Is it varied in the Inverter part of the Drive ? Please give us supporting document if any.
What is an alternator impedance value?
plz explain the auot-reclosing circuit in electrical engineeing
What is DTR erection?
If we need4× 50mm sq cable but it's not available so we can pull 4×25mm sq 2cables
what is alluminium arm in ab conductors
whatare the disadvantages occur,if the form factor of transmission will not be equal to 1.11
What are the characteristics of negative feedback?
if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?