Technical indicators

Technical indicators 
l Open type CT primary current 100-6300A, secondary current 5A, 1A 
l Rated working voltage AC0.66kV (equivalent to AC0.69kV, GB/T156-2007) 
l rated frequency 50-60Hz 
l Ambient temperature -30 ° C ~ 70 ° C, the highest temperature resistance 120 ° C 
l Altitude ≤3000m 
l Power frequency withstand voltage 3000V/1min 50Hz 
l For places where there is no direct impact from rain or snow, no serious pollution and severe vibration 
Selection instructions 
l Select the corresponding specification product according to parameters such as primary current and bus cross section. A wire passes through the transformer window. Open the flip cover, make the secondary wiring through the crimping piece, and return the flip cover after the secondary wiring is taken out. Metering electrical energy can be directly sealed with a small hole in the flip cover to prevent electricity theft. 
l The working current does not exceed 1.1 times of the rated value for a long time, and it is allowed to be used for a short time at 1.2 times of the rated value, and the time does not exceed 1h; 
l According to the magnitude of the measured current, select the rated current ratio, generally choose the rated current about 2/3 larger than the measured current; 
l Product polarity is expressed as: one wiring mark P1, P2, corresponding secondary wiring signs S1, S2; S1 represents the same name end of P1, and S2 represents the same name end of P2; 
l The measuring instrument is connected to the S1 and S2 terminals. The total load of the connected circuit should not exceed the rated load of the transformer. When the position of the installed instrument is far from the current transformer or the circuit load is large, the second should be preferred. The secondary current is 1A; 
l Note that according to the specifications and the number of the busbars, the transformers matching the window size are selected.

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