Outdoor Three-Phase Oil-Immersed Combined Instrument Transformer

Ceho is a reliable supplier of Outdoor Three-Phase Oil-Immersed Combined Instrument Transformer. Combined Interchange Inductors (CITs) integrate current transformers (CTs) and voltage transformers (VTs) into a compact unit. The "three-phase" design can handle all three-phase voltages simultaneously, while "oil-immersed" indicates that the core and windings are submerged in insulating oil within a sealed tank. This product is meticulously designed to withstand harsh environmental conditions, making it a durable choice for outdoor substation applications.

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Product Description

Ceho, as a professional R&D and manufacturing factory of Outdoor Three-Phase Oil-Immersed Combined Instrument Transformer in China, specializes in mass production, strict ISO quality control and OEM/ODM service. These transformers remain a critical and reliable component in global power infrastructures. T superior heat dissipation, proven high-voltage performance, and cost-effectiveness in large-scale projects ensure its continued importance.

For engineers and power companies, selecting this technology is a strategic decision, particularly for high-voltage applications where overload capacity is critical, and it enables the implementation of necessary environmental safety measures and maintenance procedures.

JLXZY Type description

1. Rated voltage: 33 kV, 11 kV, 6 kV

2. Accuracy level: 0.5 and 0.2 levels, 0.5S and 0.2S level

3. Rated voltage ratio: 33000/110 V, 11000/110 V, 6000/110 V Current ratio: primary current: 2.5, 5, 7. 5, 10, 15, 20, 30, 40, 50, 75, 100...A and other specifications.

The secondary current 5A.

4. Double variable ratio current specification: the double variable ratio current porcelain bottle has an indication of current ratio ratio sign P1, P2 is a large curent.

The current ratio connection method should be selected according to the maximum capacity of the corresponding transformer. Ratio P1, P3 are small current ratio

JLXZY Main Technical Parameters
Some technical parameters of JLXZY voltage part
Rated primary voltage (kV)	Max primary voltage (kV)	Rated secondary voltage (kV)	Rated load and accuracy			Max capacity (VA)	Primary power frequency withstand voltage(kV)	Rated insulation level
			0.2	0.5	1
3	3.5	100	15	25	80	320	25	3.6/25/40
6	6.9	100	15	25	80	320	32	7.2/32/60
11	11.5	100	15	25	80	60	38	12/42/75
33	40.5	100	40	80	150	1000	80	41/95/200
Some technical parameters of JLXZY current part
Rated primary current (A)		Rated secondary current (A)	Rated burden(VA)				FS time	Time of 1s thermal stability current	Time of rated dynamic stability current
			0.2S	0.2	0.5S	0.5
Single ratio	0.5.12.5.5.7.5.10.15.20.25 30.40.50.60.75.100.120.150 200.250.300.400.600.800	5	10	10	10	10	10	70	120
										Double ratio	2.5-5,5-10,7.5-15,10-20,15-30 20-40,25-50,30-60,50-75, 100-200,150-300,250-500

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Contact Info

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Address

No. 381, Jingqi Road, Economic Development Zone, Yueqing City, Zhejiang Province, China
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Tel

+86-19905879911
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Email

kevin@ningboziyao.com

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