CA/MES Europe Hottest CT

How to calculate the knee point voltage of CT?
When 10% increase in voltage gives you 50% increase in excitation current, then that voltage is known as knee point voltage. To measure the knee point voltage, At first demagnetize the CT and then apply voltage gradually from secondary keeping primary winding open-circuited. While doing this, the above phenomena will be observed then that voltage is recorded as the knee point voltage of the current transformer.

-Fixing system: Busbar support mounting, metallic bracket panel mounting, by an accessory;

directly to cable by screws(the accessory and the screws are supplied together with the C.T.

MEASURING TRANSFORMERS

-A range of (12 frames) compact design plastic case current transformer.

It's volume is much smaller than general model, integral hinged plate terminal cover,

DIN rail mounting all makes this series CT match the requirements in space limited panels.

TRANSFORMERS ELECTROINC USE

-These transformers are used for measuring current from 5A to 4000A,second current 5A/1A, cl.1-cl.0.2s.

Busbar dimensions from 0mm  to 30X100mm.

·FEATURE
Three built in fixing methods:Side base; DIN Rail;  Busbar mounting ,Built in hinged terminal cover
Compact design
Primary current from 5A to 4000A.

·SPECIFICAIONS
Rated Frequency                                       50/60Hz
Rated test voltage                                  3kV AC. (1 min)
Rated short-time thermal current(Ith)          60In
Rated dynamic current, (Idyn)                     2.5Ith
Rated voltage,(Um)                                   0.72Kv AC.
Continuous overload,(Id)                             1.2In
Operating temperature                              -10℃~50℃
Housing self-extinguishing class                     VO
Safety factor                                                 FS 5
Secondary current                                        5A/1A