Leak Prevention & Detection of MV Gas-Insulated RMU Switchgear

2026-10-12 For SF6-insulated Ring Main Units (RMU) or GIS, the leakage rate requirement depends on whether the gas compartment is classified as a closed pressure system or a sealed pressure system under IEC standards. 1. IEC 62271-1 (General HV Switchgear Standard) IEC 62271-1 defines: Gas system type Maximum SF6 leakage rate Closed pressure system ≤ 0.5% per year […]

Leak Prevention & Detection of MV Gas-Insulated RMU Switchgear 더 읽기"

Why Do Some Switchgear Have One CT While Others Have Three?

2026-10-12 Current transformers are widely used in power systems; their function is to induce a small current—proportional to the current flowing through a high-current cable—for use in metering and relay protection. What is the function of a current transformer? To ensure the safe and economical operation of a power system, it is essential to monitor

Why Do Some Switchgear Have One CT While Others Have Three? 더 읽기"

Main Structure of Our New Production Building Successfully Topped Out

2026-10-12 On October 11, 2026, the main structure of our new production building was successfully topped out, marking a major milestone in the project’s construction. This achievement lays a solid foundation for the remaining construction work and the building’s completion and commissioning. With the main structure now complete, the project will move on to the

Main Structure of Our New Production Building Successfully Topped Out 더 읽기"

Strengthening Global Partnerships Advancing SF6-Free Solutions at Hannover Messe 2026

2026-04-24 From April 20 to 24, 2026, we proudly exhibited at Hannover Messe 2026 in Germany, marking our third consecutive year at this premier global industrial event. Throughout the exhibition, we had the pleasure of reconnecting with our long-standing partners, further deepening our cooperation and mutual trust. We also engaged in detailed and constructive discussions

Strengthening Global Partnerships Advancing SF6-Free Solutions at Hannover Messe 2026 더 읽기"

Necessity of Short-Circuit Making Capability for Earthing Switches in MV RMUs

2026-01-05 Functional Role of the Earthing Switch In medium-voltage ring main units (RMUs), the earthing switch (ES) is often regarded as a device intended solely for maintenance grounding. However, under several credible operating and fault conditions, the earthing switch may be required to make onto a live circuit and withstand the resulting short-circuit current. For

Necessity of Short-Circuit Making Capability for Earthing Switches in MV RMUs 더 읽기"

Good News! Our 24kV and 38kV Permanent Magnetic Auto Reclosers Passed the Full Tests at XIHARI

2025-12-16 Recently, our company’s independently developed 24kV and 38kV permanent magnetic auto reclosers successfully completed all project tests at the Xi’an High Voltage Apparatus Research Institute (XIHARI). ◆ The 24kV/16kA permanent magnet drive recloser passed the T100 test according to IEC 62271-111.7.103, with the rated operating sequence being O-0.1s-CO-1s-CO-1s-CO-60s-CO, and passed all three tests successfully. ◆ The 38kV/16kA permanent

Good News! Our 24kV and 38kV Permanent Magnetic Auto Reclosers Passed the Full Tests at XIHARI 더 읽기"

우리 회사는 비용 효율적인 야외 RMU를 성공적으로 개발했습니다.

2024-05-30 새로운 해외 고객의 요구에 부응하여 당사는 실외와 실내 모두에서 사용할 수 있는 경제적인 링 메인 유닛을 성공적으로 개발했습니다. 테스트 후 기계적 특성과 다양한 전기적 표시기는 모두 고객 요구 사항을 충족했습니다. 고객은 당사의 개발 속도와 전반적인 성능에 매우 만족합니다!

우리 회사는 비용 효율적인 야외 RMU를 성공적으로 개발했습니다. 더 읽기"

중국 초고압의 과거와 현재를 독점 공개(하반기)

2024-05-29 전기의 "에베레스트 산"을 정복한 UHV는 중국에서 "처음부터 시작"입니다. 2004년부터 중국 국가전력공사는 수십 개의 과학 연구 기관과 대학, 200개 이상의 장비 제조 회사, 500개 이상의 건설 단위, 수십만 명의 사람들이 UHV 기초 연구, 기술에 참여하도록 조직했습니다.

중국 초고압의 과거와 현재를 독점 공개(하반기) 더 읽기"