ZCT201 current transformer and voltage transformer supplier

Electrical Specification

(Customized is available)

Selection of Zero Phase Current Transformer
Installation method
From the perspective of maintenance and installation, try to choose the open-close zero-sequence current transformer.

Product structure
Choose according to the actual use. Generally, most of the cables are used, and the busbar type is used in very few occasions, such as the zero-sequence protection of the generator outlet.

Cooperate with protection
According to the protection device used in conjunction with the corresponding selection.

There is no setting value for the low-current grounding line selection device itself, and the zero-sequence current is only one of the criteria for the device. A certain output is required to meet the device startup, grounding line selection or corresponding line tripping. The load impedance of the device itself is not large, but each zero-sequence current transformer needs to be connected to the device through cables, so the impedance of the cable is the main load impedance of the zero-sequence current transformer, and the load impedance of this zero-sequence current transformer Generally, it is about 2.5Ω.
This zero-sequence current transformer can generally be selected as a non-transformation ratio type, the primary zero-sequence current is 1-40A, and the secondary current is about 0.02-1A.

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