Qj Series Metal Grey Gas Relay Buchholz Relay Oil-Immersed Transformer Use

• Customization: Available
• Theory: Gas Relay
• Usage: Oil-Immersed Transformer, Rectifier Transformer, C
• Model NO.: QJ
• Load: Medium Power Relay
• Protective Characteristics: Sealed Relay
• Action Principle: Electronic Type
• Size: Miniature
• Type: Electric Parameter Relay
• Language: Chinese, English, Russian
• Application Scenario: Oil-Immersed Transformer
• Transport Package: Wooden Case
• Specification: As required
• Trademark: HZEC
• Origin: China
• Production Capacity: 3000 Sets/Month
• Package Size: 25.00cm * 25.00cm * 20.00cm
• Package Gross Weight: 15.000kg

Product Description

Company Profile

Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.

Product Description

Gas relay is a main protection device for internal faults of oil-immersed transformers and oil-immersed on-load tap-changers. Gas relay (gas relay) is installed on the connecting pipeline between transformer and oil conservator. When internal fault of transformer causes oil decomposition to produce gas or oil flow impulse, the contact of gas relay is activated to connect the designated control circuit and send out signal in time or automatically cut off the transformer.

Note: Special working environment code:
TH:Wet Tropics
TA:Dry Tropics

Product Parameters

No.	Model	Pipeline(mm)	Gas Volume (ml)	Flow Rate Setting Range(m/s)	Reed Contact Characteristics	Wiring Diagram No.
1	QJ4-25	25	200~250	1.0	Single signal, single trip	4
2	QJ4G-25		/		Single trip	5
3	QJ6-25				Dual trip	6
4	QJ1-50	50	250~300	0.6~1.2	Single signal, double trip with common point	7
5	QJ1-80	80		0.7~1.5
6	QJ2-50	50		0.6~1.2
7	QJ2-80	80		0.7~1.5
8	QJ3-50	50		0.6~1.2	Single signal, double independent trip	8
9	QJ3-80	80		0.7~1.5
10	QJ4-50	50		0.6~1.2	Single signal, double trip with common point	7
11	QJ4-80	80		0.7~1.5
12	QJ5-50	50		0.6~1.2	Single signal, double independent trip	8
13	QJ5-80	80		0.7~1.5
14	QJ6-50	50		0.6~1.2
15	QJ6-80	80		0.7~1.5
16	QJ7-50	50		0.6~1.2	Single signal, double trip with common point	7
17	QJ7-80	80		0.7~1.5
18	QJ8-50	50		0.6~1.2	Dual signals with common point, double trip with common point	9
19	QJ8-80	80		0.7~1.5
20	QJ9-50	50		0.6~1.2
21	QJ9-80	80		0.7~1.5
22	QJ10-50	50		0.6~1.2	Single signal, double trip with common point	7
23	QJ10-80	80		0.7~1.5
24	QJ11-50	50		0.6~1.2	Single signal, double independent trip	8
25	QJ11-80	80		0.7~1.5
26	QJ12-50	50		0.6~1.2
27	QJ12-80	80		0.7~1.5
28	QJ13-50	50		0.6~1.2
29	QJ13-80	80		0.7~1.5
30	QJ14-50	50		0.6~1.2	Dual signals with common point, double trip with common point	9
31	QJ14-80	80		0.7~1.5
32	QJ15-50	50		0.6~1.2	Single signal, double independent trip	8
33	QJ15-80	80		0.7~1.5
34	QJ16-50	50		0.6~1.2	Dual signals with common point, double trip with common point	9
35	QJ16-80	80		0.7~1.5
36	QJ17-50	50		0.6~1.2	Dual independent signals, single trip	10
37	QJ17-80	80		0.7~1.5
38	QJ18-50	50		0.6~1.2
39	QJ18-80	80		0.7~1.5
40	QJ19-50	50		0.6~1.2	Dual independent signals, double trip	11
41	QJ19-80	80		0.7~1.5

Outline Dimension

After Sales Service

1.Our company provides you with project design and process design, and designs and manufactures products according to your equipment purchase plan and specific needs. And train technical and operating personnel for you.
2.The newly purchased products are provided with online assistance for installation and debugging. The products are under the lifelong service system. If problems occur in normal use, we will provide solutions within one working day after receiving user's feedback. We will try our best to get the product up and running as soon as possible. And there are regular visits by professional technicians to ensure the long-term, safe and reliable use of our products.
3.We use quality authentic materials, process and manufacture in strict compliance with ISO9001:2000 international quality management to ensure the quality of excellence and the smooth installation!        

Certifications