Electric Buchholz Qj25/50/80 Gas Relay for Transformer Used in Oil-Immersed Transformer

• Theory: Gas Relay
• Usage: Transformer
• Phase: 1
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: Relay
• Electricity Type: AC/DC
• Load: High Power Relay
• Protective Characteristics: Sealed Relay
• Action Principle: Electronic Type
• Type: Electric Parameter Relay
• Voltage Between Contacls: 2000V/1min
• Woleage Between Terminal and Earth: 2000V/1min
• Woleage Between Signal and Trpping Termi: 2000V/1min
• Working Temperature: -30-95 Celsius
• Transport Package: /
• Specification: customization
• Trademark: /
• Origin: China
• HS Code: 8536500090
• Production Capacity: 50000
• Package Size: 30.00cm * 20.00cm * 30.00cm
• Package Gross Weight: 50.000kg

Product Description

Gas Relay

   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 ags 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

FAQ

1.Q:What's your main products?

A: We provide professional Transformer Accessories and Insulation Materials with 15 years experience.

 

2.Q Why chooses us?

A: Well experienced in our field. Our staff of engineers offers high-valued design guidance to
assure product performance and efficiency. And our strict adherence to rigorous quality control and tolerance standards lead to easier assembly of finished components at your facility. We always focus on Quality.

 

3. Q:How can you control your quality?

A:For each production processing, we have complete QC system for the chemical composition, physical and electrical properties.After production, all the goods will be tested according to related standards, and the ex-factory test reports will be sent along with shipment documents.

 

4. Q: Does your company accept customization?

A. Yes, we can accept OEM/ODM.

 

5.Q: Do you have the products instock?

A: Depends on your request,we have standard models in stock.Some special product and big order will be newly produced according to your order.

 

6. Q: What's your payment terms?

A: We usually accept all kinds of payment terms, T/T, L/C, Western union, Cash.

 

7. Q: What do you have for certificate?

A: :Quality Service Credit Certificate, Enterprise Credit Grade Certificate,Credit Operation Demonstration Unit Certificate, Quality Management System Certificate, etc.

 

8.Q:Can we visit your company?

A:Yes,for sure, you are welcome to visit our company.