HIRAIDENKEIKI CO.,LTD. - Zero-phase-sequence Current Transformer (ZCT)

top

Zero-Phase-Sequence Current Transformer (ZCT)

Zero-phase-sequence Current Transformer(ZCT)

Overview

Zero-phase-sequence Current Transformer.

We manufacture ZCT for large current. (～5000A)

With your inquiry, we will design and manufacture product which is not available in list below.

» Consultation / Request for Development

Standard Rated Circular Window Type ZCT

Production system	Format name of Hirai	Primary current (A)	Zerophase primary current (mA)	Zero-phase secondary current two electric current (mA)	Rated burden (Ω)	Accuracy class	Exciting impedance (Z0)	Frequency(Hz)	Accuracy limit factor (n0>)	Overcurrent Intensity	Circuit voltage (kV)	Bore size (φ)	Weight (kg)	Catalogue
Make-to-order production	ECT-60RZ	300	200	1.5	10Ω	H class	>20Ω	50～60	2000	40times/1s		60mm	5.5	JPG
Make-to-order production	ECT-80RZ	600	200	1.5	10Ω	H class	>20Ω	50～60	2000	40times/1s		80mm	7.5	JPG
Make-to-order production	ECT-120RZ	1000	200	1.5	10Ω	L class	>10Ω	50～60	2000	40times/1s		120mm	12.5	JPG
Make-to-order production	ECT-140RZ	1600	200	1.5	10Ω	L class	>10Ω	50～60	2000	40times/1s		140mm	13	JPG
Make-to-order production	ECT-160RZ	1200	200	1.5	10Ω	L class	>10Ω	50～60	2000	40times/1s		158mm	15	JPG
Make-to-order production	ECT-200RZ	2000	200	1.5	10Ω	L class	>10Ω	50～60	2000	40times/1s		200mm	9	JPG
Make-to-order production	ECT-200RZ	3000	200	1.5	10Ω	L class	>10Ω	50～60	2000	40times/1s		200mm	9	JPG
Make-to-order production	ECT-290RZ	2000	200	1.5	10Ω	L class	>10Ω	50～60	2000	40times/1s		290mm	40	JPG
Make-to-order production	ECT-290RZ	3000	200	1.5	10Ω	L class	>10Ω	50～60	2000	40times/1s		290mm	40	JPG
Make-to-order production	ECT-305RZ	3000	200	1.5	10Ω	H class	>20Ω	50～60	2000	40times/1s		305mm	21	JPG

Toroidal Type Zero-Phase Sequence Current Transformer

Production system	Format name of Hirai	Primary current (A)	Zero-phase primary current (mA)	Zero-phase secondary current two electric current (mA)	Rated burden (Ω)	Accuracy class	Exciting impedance (Z0)	Frequency (Hz)	Accuracy limit factor (n0>)	Overcurrent Intensity	Circuit voltage (kV)	Bore size (φ)	Weight (kg)	Catalogue
Make-to-order production	ECT-110RZB	less than 800	200	1.5	10	H class	>20Ω	50～60	2000	40times/1s		110mm	18	JPG
Make-to-order production	ECT-190RZB	less than 1200	200	1.5	10	H class	>20Ω	50～60	2000	40times/1s		190mm	36	JPG

Special Rated Circular Window Type ZCT

Production system	Format name of Hirai	Primary current (A)	Zero-phase primary current (A)	Zero-phase secondary current two electric current (A)	Rated burden (VA)	Accuracy class	Exciting impedance (Z0)	Frequency (Hz)	Accuracy limit factor (n0<)	Overcurrent Intensity	Circuit voltage (kV)	Bore size (φ)	Weight (kg)	Test winding	Cat-alogue
Make-to-order production	ECT-60RZ	100	100	5	5	1P class		50		40times/1s	0.72	60	5.5	no	JPG
Make-to-order production	ECT-60RZ	300	100	5	5	1P class		50		40times/1s	0.72	60	5.5	no	JPG
Make-to-order production	ECT-80RZ	600	50	5	5	10P5		50		40times/1s	7.2	80	8	no	JPG
			100			10P10		50～60			7.2
						1P class		50			0.72
					10	3G class		50			0.72
					25	5G class		50～60			6.6
			400		5	3G class		50～60			3.45
			400		5	3G class		50～60			3.6			10A/30min.(10A×40T)
Make-to-order production	ECT-120RZ	50	50	5	10	5G class		60		40times/1s	no	120	15	no	JPG
		100
		150
		200
		600	400		5	3G class		50～60			3.45		12.5
Make-to-order production	ECT-200R-270	2000	100	5	25	5G class		50～60	Accuracy limit factorn>5	40times/1s	3.45	270	55	no	JPG
Make-to-order production	ECT-270RZ	750	200mA	1.5mA	10Ω	H class	20Ω	50		40times/1s	7.2	270	23	1T(<5A)	JPG

Track Window Type Zero-Phase Sequence Current Transformer

Production system	Format name of Hirai	Primary current (A)	Zero-phase primary current (mA)	Zero-phase secondary current two electric current (mA)	Rated burden	Accuracy class	Exciting impedance (Z0>)	Frequency (Hz)	Accuracy limit factor (n0>)	Over-current Inten-sity	Circuit voltage (kV)	Square bore size	Weight (kg)	Test winding	Notes	Cat-alogue
Make-to-order production	ECT-100SZP	1000	103mA	0.167mA	300Ω	±0.5mV		50		40times/1s	0.72	125mm × 240mm	10	1T(<5A)	Zero-phase secondary voltage = 50mV	JPG
Make-to-order production	ECT-150SHZ	2000	200mA	1.5mA	10Ω	H class	20Ω	50	2000	40times/1s	7.2	460mm × 150mm × 80R	66	1T(<5A<		JPG
Make-to-order production	CT-3200TRZ	2000	100A	5A	2.5VA	3(IEC-185)		50		40times/1s	0.72	320mm × 0mm × 85R	12	10/5A(<30min.)	ratio error at 3% of ratio current = ±10%	JPG
Make-to-order production	CT-3200TRZ	3200	100A	5A	2.5VA	3(IEC-185)		50		40times/1s	0.72	320mm × 0mm × 85R	12	10/5A(<30min.)	ratio error at 3% of ratio current = ±10%	JPG
Make-to-order production	CT-5000TRZ	3200	100A	5A	2.5VA	3(IEC-185)		50		40times/1s	0.72	400mm × 0mm × 125R	24	10/5A(<30min.)	ratio error at 3% of ratio current = ±10%	JPG