Comprehensive Comparative Analysis of Schneider, Siemens, and ABB Environmentally Friendly Gas Switchgear（SF6 Free RMU)
This is information about the current environmentally friendly switchgear from each of the three major brands (ABB, Schneider, Siemens). The switchgear types are as follows ABB: SafeRing / SafePlus Air Series Schneider: RM AirSeT series Siemens: 8DJH series I. Environmental Performance All three switchgear models adopt environmentally friendly gases, effectively reducing the impact on the […]
The latest edition GB/T1984-2024 High-voltage AC Circuit Breaker Main revision content
The latest version of GB/T1984—2024 High-voltage alternating-current circuit-breakers (IEC62271-100:2021, High-voltage switchgear and controlgear—Part 100: Alternating-current circuit-breakers, MOD) was released on 2024-09-29 and will be implemented on 2025-04-01. The main revisions are as follows: Deleted terms and definitions such as “indoor switchgear and controlgear, outdoor switchgear and controlgear, earth fault factor, self-restoring insulation, non-self-restoring insulation, cable […]
Detection method of vacuum degree of Vacuum Interrupters
Vacuum circuit breakers have several advantages, including high interrupting capability, excellent arc-extinguishing performance, long mechanical and electrical life, low maintenance workload, and extended maintenance intervals. Therefore, vacuum switches are widely recognized by users. The vacuum degree of the vacuum interrupters is a crucial technical indicator that ensures the insulation and arc-extinguishing performance of the switch. […]
About the switchgear in several different circuit breaker forms
In switchgear applications, the withdrawable structure of circuit breakers can be divided into three main types, as detailed below: As mentioned earlier, fixed switchgear has the disadvantage of being difficult to overhaul when the circuit breaker fails, leading to prolonged power outages. Therefore, withdrawable circuit breakers better meet customer requirements. Is the center-mounted, horizontal draw-out […]
Grounding switch operation
The MV grounding switch is an important part of the MV switchgear as the grounding protection of the high voltage circuit during maintenance and overhaul. The grounding switch needs to withstand short-term withstand current, peak withstand current, that is, maintenance and repair, grounding switch closed, accidental power supply, the grounding switch needs to be stable […]
Hello 2025 Happy New Year ！
On behalf of GEE Company, we would like to extend our warmest New Year greetings to all. May this new year be a canvas for you to paint your dreams and aspirations. At GEE, we strive to reach new heights, and we hope that you too will soar in every aspect of your life. Wishing […]
Merry Christmas And Happy New Year
As the Christmas snowflakes gently fall and the New Year’s dawn beckons, may GEE’s collaboration with you be like a well-tuned symphony, creating harmonious success. Here’s to a season filled with wonder and a year of limitless achievements. Merry Christmas and a Prosperous New Year!
About Ring Main Unit Gas Tank
1.What’s a ring main unit gas tank? In a ring main unit, the gas tank is a crucial component. The interior of the ring main unit gas tank is typically filled with insulating gases such as sulfur hexafluoride (SF6), dry air, or nitrogen. These gases are used to isolate and protect the internal electrical components, […]
About Ring Main Unit: The Key Equipment in Modern Power Distribution
In today’s power distribution field, the Ring Main Unit (RMU) plays a crucial role. It is a factory-assembled metal-enclosed switchgear widely used in the power supply systems of various infrastructures, including high-rise buildings, industrial facilities, and residential communities. A deep understanding of the RMU is of great significance for optimizing power distribution decisions. 1. Definition […]
About Switchgear
1. The Essence of Switchgear Switchgear, in its simplest form, is a collection of electrical devices that work in harmony to control, protect, and isolate electrical equipment within a power system. It serves as the first line of defense against power surges, short circuits, and overloads, safeguarding the integrity of the entire electrical infrastructure. 1.1 […]