Does the product meet partial discharge requirements?

Yes, detailed simulation analysis shows no detectable partial discharge under 1.1 times rated line voltage (13.2kV), meeting non-PD switchgear requirements.

What safety functions are included in the design?

The product has a complete five-prevention chain function, fully meeting the operation and safety performance requirements of the State Grid Corporation.

What is the rated insulation level when the air box is open?

The product air box is fully open and can meet the rated insulation level when it is open, ensuring excellent electrical insulation performance.

Environment-Friendly Climate Neutral Gas Insulated Ring Main Unit

Name: Environment-Friendly Climate Neutral Gas Insulated Ring Main Unit
Brand: Sanhe Power Tech (Shenzhen) Co., Ltd.
SKU: 1987313835

Guangdong, ChinaSanhe Power Tech (Shenzhen) Co., Ltd.

Negotiable

1 Piece

Product profile

Customization

Available

Certification

Type Test

Shell Material

Aluminum-Zinc-Clad Sheet

Model NO.

Environment-Friendly Climate Neutral Gas Insulated

Voltage Level

High Voltage

Installation

Fixed

Structure

Floorstanding

Current

Transport Package

Wooden Packing

Specification

12kV

Trademark

Sanhe

Origin

Xiamen

HS Code

8537209000

Production Capacity

10000 PCS/Year

Key features

Environmentally Friendly Design: Uses nitrogen insulation, eliminating epoxy resin and non-environmental gas recovery needs.

High Electrical Performance: No detectable partial discharge at 1.1x rated voltage; optimized electrode shape balances electric fields.

Flexible Customization: Supports various isolation types, expansion methods, and spring or permanent magnet operating mechanisms.

Superior Leak Detection: Dual leak detection via helium mass spectrometer and buckle cover ensures leak rate <1.6*10^-8 Pa m3/s.

Robust Mechanical Life: Circuit breaker mechanical life reaches 20,000 times; three-position isolator reaches 5,000 times.

Advanced Welding Technology: Uses automated robot laser welding or CMT cold metal transfer for high precision and reliability.

Complete Safety Protection: Features a complete five-prevention chain function meeting State Grid safety performance requirements.

Compact and Open Design: Fully open air box meets rated insulation levels when open, ensuring excellent electrical insulation.

Company profile

Sanhe Power Tech (Shenzhen) Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading CompanyExport Year: 2002-09-01Nearest Port: shanghaiAverage Response Time: ≤7.40hTerms of Payment: LC, T/T, Western Union, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, FCA, EXW

AI-Powered supplier vetting

SummarySanhe Power Tech (Shenzhen) Co., Ltd. is a China-based limited company and factory established in 2002, with 76 employees and operations in Shenzhen, Guangdong. It specializes in power-quality and new-energy products, including harmonic filters, capacitor banks, SVG/STATCOM, APF, power-factor correction, switchgear, soft starters, and solar-storage charging systems. The supplier reports ISO9001:2008, ISO14001:2004, and OHSAS18001:2007 certifications, seven R&D engineers, 31–40 quality-control staff, five production lines, and a 5,000 m² manufacturing plant. Stated production includes vacuum contactors, SVG/APF systems, capacitor-bank cabinets, battery storage, and RMUs. It began exporting in 2002 and identifies Africa, Southeast Asia/Mideast, and domestic markets. The provided information supports production, certification, and technical-specialization strengths, but does not establish after-sales performance, financial credibility, customization capability, or customer case history.

Supplier typeThe supplier is identified as a limited company and factory, with a combined business type, based in Shenzhen, Guangdong, China. Its stated industry is manufacturing, indicating a direct manufacturing-oriented supplier rather than only a trading intermediary.

CertificationsThe supplier reports ISO9001:2008, ISO14001:2004, and OHSAS18001:2007 management-system certificates. These explicitly cover quality, environmental, and occupational-health-and-safety management, although the provided information does not include certificate validity dates or verification details.

R&D capabilityThe supplier describes itself as a national high-tech enterprise focused on power-quality products, R&D, technology solutions, production, and service. It reports seven R&D engineers and a product range covering SVG/STATCOM, APF, harmonic treatment, voltage control, power-factor correction, and distributed new-energy solutions, providing explicit evidence of technical development capability.

Production capacityThe supplier reports five production lines, a 5,000 m² manufacturing plant, 31–40 quality-control staff, and stated annual outputs for vacuum contactors, SVG/APF, capacitor-bank cabinets, battery storage, and RMUs. These data support established multi-product manufacturing capacity, although no independent capacity validation or delivery-performance data is provided.

Product Q&A

Q:What insulation medium is used in this ring main unit?

The product uses nitrogen (N2), which accounts for 78% of natural air, as the insulating medium, eliminating the need for solid insulating materials like epoxy resin.

Q:Is the product customizable for different operating mechanisms?

Yes, the product can be equipped with a self-developed high-performance spring operating mechanism or a permanent magnet operating mechanism according to customer needs.

Q:What is the mechanical life of the circuit breaker and isolator?

The mechanical life of the circuit breaker can reach 20,000 times, and the mechanical life of the three-position isolating switch is 5,000 times.

Q:How does the product ensure leak detection reliability?

Each gas box undergoes quantitative leak detection by helium mass spectrometer before charging and qualitative leak detection via buckle cover after standing for 24 hours.

Q:What welding technologies are used for the gas box?

The product uses fully automated robot laser welding or Cold Metal Transfer (CMT) welding to ensure high precision, narrow weld seams, and strong air tightness.