Product details & parameters
----Description:
Gas realay sedrles QJ are kinds of protective devices installed on oil immersed transformers with on load tap changers of 800 KVA and above, it is mocented on the cinnecting pipe between transformer and oil conservator.
When the stop plate of gas relay is rushed by gas or heavy oil folw caused byintemal failure of transformer or on losd tap changeer,the tripping contacts will be closed and the power source be disconnexted automatcally to provide a protection for transformer or on load tap changer.
Technical data:
1. Working temperature:-30ºC~95ºC 2. Switch Capacity:AC 220V 0.3A COS≤0.6 DC 220V 0.3A S≤5×10-³S
3. Operation Character:
| Type |
QJ-80 |
QJ-50 |
QJ-25 |
| Range of flow(m/s) |
0.7-1.5 |
0.6-1.2 |
0.8-1.2 |
| Gas accumulaton(ml) |
250-300 |
<250 |
4. Sealing character:filling transformer oil into the relay, Pressurizing normal temperature 200Kpa, Continued 20min and without any leakage.
5. Insulating property:
| Test item |
Voltage between contacls |
Woleage between terminal and earth |
Woleage between signal and trpping termi |
| Bring to bear on industry volatye |
2000V/1min |
2000V/1min |
2000V/1min |
----After-sales service:
Provide comprehensive pre-sales consulting and program design services.
Provide free repair or replacement service for faults caused by product quality problems during the product warranty period.
Provide lifelong technical support and after-sales service to ensure that customers have no worries.
Safe, efficient, environmentally friendly and energy-saving power solutions
Anhui Shine Electric Power Technology Co., Ltd
Shine specializes in providing consulting, sales, and service for electrical products. We are committed to providing customers with comprehensive electrical solutions to meet the power needs of different industries and fields.
Our products cover electrical products such as transformers, ring main units, combiner boxes, inverters, and PCS. These products are widely used in the power system, industrial and mining enterprises, new energy, and other fields. We also have a sufficient inventory of spare parts and components to ensure that customers can receive prompt supplies when needed.
We have a professional technical team with deep knowledge and practical experience in the power industry, who can provide professional technical consultation and after-sales service to customers. Our service team always takes customer needs as the guide, actively responds to customer needs, and ensures customer satisfaction.
| Packing |
Plywood frame/container |
| Shipping |
By sea/air/train |
1. Who we are?
We specialize in providing consulting, sales, and service for electrical products. We are committed to providing customers with comprehensive electrical solutions to meet the power needs of different industries and fields.
2.How can we guarantee quality?
We have comprehensive pre-sales and after-sales services. When we receive an order, we have standard procedure to provide client with a production and processing schedule within 3-4 days, including part names, delivery time, total assembly time, and testing plan.
3.What can you buy from us?
110kV-220kV Oil-immersed Power Transformer, Dry-type Transformer, Unpacked H Grade Dry Transformer, Oil-immersed Distribution Transformer, Pad-mounted Transformer, etc., and various spare parts.
4.Why should you buy from us?
As an enterprise specializing in power productions, we not only provide products, but also technical solutions as your need. We continuously focus on participating in and developing the construction of smart grids, striving to become excellent experts in solving power system problems with reliable quality, strict management, and efficient services. What's more, we have got many certificates like ISO-9000.
5.What services can we provide?
Power technical solutions, electric productions and spare parts, and E-learning class about the productions.
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