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R40 Series Gas Relay for Transformers
US$50.00
1 Piece
Product profile
Customization
AvailableTheory
CustomizableUsage
CustomizableModel NO.
R40Phase
CustomizableElectricity Type
CustomizableNumber of Pole
CustomizableLoad
CustomizableProtective Characteristics
CustomizableAction Principle
CustomizableSize
CustomizableType
CustomizableTransport Package
CartonSpecification
CustomizableTrademark
XinyuanOrigin
ChinaHS Code
8504901900Production Capacity
5000piecesKey features
Passive working design, no external power supply required
Dual protection: gas alarm for minor faults & oil surge trip for severe faults
High sensitivity to capture early incipient faults inside transformer
Reliable magnetic reed contacts, stable signal output, low misoperation
Transparent observation window for direct viewing of oil level and accumulated gas
Built-in air release valve for gas sampling, exhausting and fault analysis
Cast metal housing with anti-corrosion coating, excellent sealing performance
Flange connection structure, easy installation on transformer pipeline
Strong vibration and shock resistance, stable for outdoor substation
Wide operating temperature range, adaptable to harsh field environment
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 1 Years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤5.13h
About Our Factory & Business Background
AddressNo. 5, Erwei Road, Jingbao Sub-park, Tianjin Pharmaceutical & Medical Device Industrial Park, Beichen District, Tianjin, P. R. China
Plant Area2000 square meters
Number of Employees6
Registered Capital1,000,000 RMB
Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment
International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW
Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays
Minimum Order Quantity200 Kg
Supply Chain Partners5
Our Production Capability & Technical Expertise
Main ProductsTransformer Insulating Materials
Production Lines1
Production MachinesCNC engraving machine, Cutter saw, Flat plate pulling machine, Numerical Control Machining Center, Precision sliding saw
QA/QC inspectors1 people
Inspection Type for Finished ProductsRandom inspection(Visual inspection)
Inspection Method for Finished ProductsFinished product checked by packing staff
R&D Engineers1 people
Traceability of Raw MaterialsNo
Our Industry Experience & Global Business Record
Year of Establishment2026-03-09
Main MarketsDomestic
Repeat Buyers Choice50%~80%
Number of Foreign Trading Staff2
Overseas Agent/BranchNo
New Products Launched in Last yearNo
Our Certifications, Standards & Industry Recognition
Cooperated with Fortune 500No
Product Q&A
Q:What is R40 series gas relay?
A:
It is also known as Buchholz relay, the core protection device for oil-immersed transformers fitted with oil conservator.
Q:Where should the R40 gas relay be installed?
A:
It is mounted on the connecting pipeline between transformer tank and oil conservator.
Q:What two types of signals can it output?
A:
Gas alarm signal for minor faults and oil surge trip signal for serious faults.
Q:What is the function of the observation window?
A:
To directly check the internal oil level and accumulated gas inside the relay.
Q:What is the air release valve used for?
A:
For exhausting accumulated gas and collecting gas samples for fault analysis.
Send Inquiry
*To:
Xinyuan Technology (Tianjin) Co., Ltd.
Xinyuan Technology (Tianjin) Co., Ltd.*Content:
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