How to calculate Knee point voltage for CT
Knee Point
Voltage,
Vk = [(VA/Is^2) + Rct]*ALF*Is
VA = CT Burden,
Is = Secondary Current,
Rct = CT Resistance with
loop,
ALF = Constant (ie in
5P20 class ALF=20)
Popular Posts
-
Factory Acceptance Test (FAT) procedure Visual Inspection Test Visual inspection with customer will be carried out on the LV switchboa...
-
Transformers are required throughout modern interconnected power systems. The size of these transformers ranges from as low as a few kVA ...
-
Wave trap is a parallel tuned inductor - capacitor tank circuit made to be resonant at desired communication frequency . It reduces ... -
How to calculate Knee point voltage for CT Knee Point Voltage, Vk = [(VA/Is^2) + Rct]*ALF*Is VA = CT Burden, Is = Second...
-
kVA is the unit for apparent power. Apparent power consists of active and reactive power. Active power is the share of the apparent p...
-
Dear Engineers spend some time to read this article fully which helps to crack most of the MNC interviews. Ultimately the following points a...
-
Why is vector group important? Because it determines the phase angle displacement between the primary (HV) and secondary (LV) wi...
-
An electrical surge can be occurred in an electrical power transmission system due to various reasons. Surge in an electrical system or...
-
Principle of operation of CT A current transformer is defined as “as an instrument transformer in which the secondary current is subst...
Friday 12 June 2015
Subscribe to:
Posts (Atom)