ZCT401 Lead Wire Type zero sequence current transformer realiable supplier

Electrical Specification

(Customized is available)

Precautions for installation of zero-sequence current transformers

Most of the zero-sequence current transformers are of the through-core type, and the principle and installation are relatively simple. However, special attention should be paid to the installation of the following two zero-sequence current transformers.

Precautions for installation of zero-sequence current transformer at the cable outlet of medium voltage ungrounded system
Correct installation method: The metal shielding layer at both ends of the three-core power cable must be well grounded. After the cable terminal head passes through the zero-sequence current transformer, the relative position of the ground wire of the metal shielding layer of the cable and the current transformer should be installed correctly. When the cable passes through the zero-sequence current transformer, the metal sheath of the cable and the grounding wire should be insulated from the ground. When the grounding point of the metal shield of the cable is on the transformer, the grounding wire should pass through the zero-sequence current transformer and then be grounded; when it is below the transformer, the grounding wire should be grounded. The ground wire should be directly grounded.

Item	Rated Current(A)	Output Voltage Vo(mv)	Test Conditions	Over Leakage Characterstics	Temperature Characteristics -35~80℃	Dimensions (mm)
Click PN For Details						ID	OD	HT
ZCT201	30	4-5.1	lin=10mA RL=510	-10%~0%	10%Max	5.9	16	6.5
ZCT202	30	5.1-6	lin=8mA RL=750	-10%~0%	10%Max	5.8	15.2	6.1
ZCT203	50	17-21	lin=22.5mA RL=1k	-10%~0%	10%Max	9.2	21	7.3
ZCT204	30	12-15	lin=22.5mA RL=1k	-10%~0%	10%Max	9.8	20.6	6.5
ZCT205	30	12.5-15.5	lin=8mA RL=4.7k	-10%~0%	10%Max	9.3	21.3	7.2
ZCT206	50	17-21	lin=22.5mA RL=1k	-10%~0%	10%Max	12.3	26	10
ZCT207	30	7.5-8.5	lin=25mA RL=1k	-10%~0%	10%Max	15.4	29.8	10
ZCT208	60	10.2-12.5	lin=20mA RL=680	-10%~0%	10%Max	7.2	19.4	7.7
ZCT209	50	8-11.2	lin=11.25mA RL=1k	-10%~0%	10%Max	7	17.2	7
ZCT210	50	8-11.2	lin=11.25mA RL=1k	-10%~0%	10%Max	6.8	16.9	7.9
ZCT211	50	8-11.2	lin=11.25mA RL=1k	-10%~0%	10%Max	10.6	25.4	8
ZCT212	60	10.2-12.5	lin=20mA RL=680	-10%~0%	10%Max	11	23.5	8
ZCT213	60	≥300	lin=25mA RL=1k	-10%~0%	10%Max	9.4	23.8	12.7
ZCT218	60	10.2--12.5	lin=25mA RL=680	-10%~0%	10%Max	7.5	18.9	7.6
ZCT220	60	≥300	lin=25mA RL=47k	-10%~0%	10%Max	10.1	24	11.5
ZCT225	60	≥300	lin=25mA RL=47k	-10%~0%	10%Max	10.9	25.5	9
ZCT401	100	17-21	lin=22.5mA RL=1k	-10%~0%	10%Max	15	29.2	10
ZCT402	100	6.3-7.5	lin=20mA RL=370	-10%~0%	10%Max	17.5	35.9	8.8
ZCT403	250	17-21	lin=22.5mA,RL=1k	-10%~0%	10%Max	29	51	12
ZCT404	250	17-21	lin=22.5mA,RL=1k	-10%~0%	10%Max	32	55.6	12
ZCT405	250	17-21	lin=22.5mA,RL=1k	-10%~0%	10%Max	42	80*69	20
ZCT406	630	17-21	lin=25mA,RL=1k	-10%~0%	10%Max	51.3	84	26
ZCT407	800	17-21	lin=22.5mA,RL=1k	-10%~0%	10%Max	51	96*89	23
ZCT408	100	125-150	lin=500mA,RL=150	-10%~0%	10%Max	19	36	11.5
ZCT409	225	125-150	lin=500mA,RL=150	-10%~0%	10%Max	24	42	12
ZCT410	400	125-150	lin=500mA,RL=150	-10%~0%	10%Max	43	90*74	16
ZCT411	800	120-151	lin=500mA,RL=150	-10%~0%	10%Max	53	96*89	23