Advanced Multifunctional Gas Relay with Oil Pressure Monitoring

• Customization: Available
• Application: Transformer Fittings
• Phase: No
• Model NO.: Multifunctional gas relay monitors oil pressure,
• Cooling Method: No
• Winding Type: No
• Certification: ISO9001-2000
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: No
• Shape of Core: No
• Brand: No
• Model Number: Qjm-40
• Product Name: Gas Relay
• Transport Package: Wooden Box
• Specification: 40 caliber (mm)
• Trademark: Zhifeng Transformer
• Origin: China
• HS Code: 8504210000
• Production Capacity: 1000 Pieces/Month
• Package Size: 50.00cm * 50.00cm * 50.00cm
• Package Gross Weight: 1000.000kg

Product Description

Product Description

Annotated examples: QJM-40/30-20-35 represents a fully sealed gas relay with a heavy gas (pressure) relay alarm value of 30kPa, a light gas gas alarm oil level of 20 mm under the tank cap, a pressure release valve opening pressure value of 35kPa, and a pipeline diameter of 40mm (low oil level alarm contact can be added if required by the customer).

Scope of use: (a). Installation position: installed on the top of the lid, or parallel to the lid;

(b). Environmental requirements: -45ºC ~ +70ºC;

Working environment requirements: -45ºC ~ +105ºC;

(c). Relative humidity: +20ºC, not more than 95%;

(d). Contact capacity: AC 250V/3A,

DC 250V/1A;

(e). Insulation voltage: 2000V, 1min.

Gas relay (also known as gas relay) is a protective device used by the transformer, installed in the pipeline between the oil pillow and the fuel tank of the transformer, the use of the transformer internal failure to decompose the oil to produce gas or cause oil surge, so that the gas relay contact action, connected to the control circuit, And timely signal alarm (light gas) or start the protection element automatically cut the transformer (heavy gas). Light gas is mainly reflected in the operation or slight failure of the gas decomposed by oil rising into the gas relay pressure to reduce the oil level, the open cup of the relay falls with the oil level, the light gas dry contact is connected to send a signal, when there is too much gas in the light gas, the gas can be released by the gas relay nozzle. Heavy gas is mainly reflected in the serious internal fault of the transformer (especially the fault that other transformer protection cannot operate such as inter-turn short circuit), the strong gas drives the oil flow to impact the baffle plate, and the magnet on the baffle plate attracts the heavy gas reed contact, making the contact connected and tripping. The gas relay is divided into on-load gas relay (tubing radius is generally 50mm or 80mm) and body gas relay (tubing radius is generally 80mm).

Detailed Photos

 

Product Parameters

Rated power of motor kW	Rated current of motor A	Circuit breaker rated current A	Instantaneous circuit breaker currentA	Rated current of contactor A	Thermal relay setting value A
3	6.86	10	240	8.5/9	6.3-9.0
4	8.48	10	240	8.5/9	7.5-11
5.5	11.5	16	240	11.5/12	9.0-13
7.5	15.1	20	240	15.5/16	12-17.6
11	22	32	12In	22/25	18-25
15	29.5	40	12In	30/32	24-32
18.5	35	50	12In	37/40	30-45
22	42	63/100	12In	44/50	30-45
30	56.6	80/100	12In	65/63	45-63
37	70.6	100/160	12In	85/75	57-82
45	84.9	125/160	12In	85/95/100	70-105

 

Rated power of motor kW	Rated current of motor A	Circuit breaker rated current A	Instantaneous circuit breaker current A	Rated current of contactor A	Thermal relay setting value A
55	102	160/160	12In	105/110/125	80-115
75	137	200/250	12In	170/145/160	110-160
90	163	225/250	12In	170/185/200	140-200
110	204	315/400	12In	245/210/250	160-250
132	237	350/400	12In	245/260/250	160-25
160	282	400/400	12In	370/300/315	250-400
200	360	500/630	12In	370/400	310-500
250	444	630/630	12In	500	310-500
280	497	630	12In	500	310-500

  

Company Profile

 

Shandong Zhifeng Transformer Co., Ltd.

 

Located in the North Rainbow Industrial Park, East Second Ring Road, Linqing City, Shandong Province, Shandong Zhifeng Transformer Co., Ltd. is a leading power equipment manufacturing enterprise. Specializing in high-quality transformers, our product range includes oil-immersed transformers, dry transformers, special transformers, and more.

 

Our commitment to strict quality standards and advanced technology ensures that our transformers meet customer needs with superior quality. Equipped with a comprehensive performance test bench, advanced inspection and testing equipment, and a team of experienced engineers and technical personnel, we guarantee top-notch products.

 

At Shandong Zhifeng Transformer Co., Ltd., we prioritize customer satisfaction by offering safe, energy-efficient, and environmentally friendly power products globally. With a reputation for exceptional quality, competitive pricing, and excellent after-sales service, we are dedicated to continuous improvement and innovation.

 

Choose Shandong Zhifeng Transformer Co., Ltd. for reliable and high-performance power solutions. Contact us today for more information and experience the difference in power technology!

Frequently asked question

Q: Are you a manufacturer, factory or trading company?
A: Yes, we have been engaged in the development, production and operation of transformers for more than 15 years.

Q: What is your warranty?
A: We offer a 12-month warranty.

Q: Production time?
A: 30 to 45 days or depending on order requirements.

Q: What are your payment terms?
A: T/T, L/C or negotiation.

Q: How does your factory conduct quality control?
A: We carry out 100% QC inspection to ensure that every product is qualified. From raw material to final product manufacturing process, we have more than 10 QC inspections.

Q: Do you have any products in stock?
A: Not normally. All our products are manufactured according to your order quantity.

Q: What does a custom transformer need to provide?
A: Technical drawings and technical specification documents are best, or you can tell us some detailed technical specification dates below "Quote and order required information".

Q: Can I have a catalogue and price list for my MOQ trial order?
A: All of our products are made in China or displayed on the official website, you are always welcome to ask us directly for more information.