Basic Info.
Certification
ISO9001, CNAS
Shell Material
Stainless Steel
Voltage Level
Medium Voltage
Product Description
12-24kV SF6 Gas Insulated Switchgear Rain Main Unit GIS
Product Overview
MGC Series are a new type of SF6 gas-insulated compact switchgear, in- house developed by Murge, suitable for most switching applications in medium voltage distribution networks. The product, of modular design, allows random combinations of fixed modules or extensible modules to satisfy the demands for flexible applications of compact switchgear at secondary substations. MGC Series switchgears are a fully gas insulated enclosed system, with all live parts and switches enclosed in a stainless steel tank, so that they are free of environmental impacts and feature reliable operation and ensured safety; compact structure and a small footprint; virtually free maintenance and long service life, and so on. The products have passed the type test by national High-voltage Electrical Apparatuses Testing Center, and found wide applications in small secondary distribution stations, package switching substations, industrial and mine enterprises, airports, railways, business quarters, high-rise buildings, expressways, metros, tunnels as well as places with abominable natural conditions
Applicable Standards
IEC 62271-100 :2012 High-voltage switchgear and controlgear-Part 100: Alternating-current circuit-breakers
IEC 62271-105 High-voltage switchgear and controlgear-Part 105: Alternating current switch-fuse combinations IEC 62271-102 High-voltage switchgear and controlgear-Part 102: Alternating current disconnectors and earthing switches
IEC 62271-103 High-voltage switchgear and controlgear-Part 103: Switches for rated voltages above 1 kV and up to and including 52 kV
IEC 62271-200: 2011 High-voltage switchgear and controlgear-Part 200: AC metal-enclosed switchgear and controlgear for rated voltage above 1 kV and up to and including 52 kV
IEC 62271-1: 2007 High-voltage switchgear and controlgear-Part 1: Common specificationsProduct Features 1. Modularized design It comprises load break switch module (C), Switch-fuse combination module (F), circuit breaker module (V), metering module (M), busbar PT module (PT) and so on; different modules can form a ring network through random combinations.
2. Fully insulated and enclosed design The primary live parts (main bus) and switch body of MGC switchgear are enclosed in the gas tank welded with stainless steel; the main circuit is connected with external elements via D1N47636 bushing as installed on the gas tank, which is available for connection with I/O cable via the fully insulated and shielded separable connector; the degree of protection of the gas tank is up to 1P67; the interior of the gas tank, free of the external impact, could resist short-time flood and condensation
3. Flexible and extensible design MGC Series switchgear can be configured to inextensible fixed ring main unit through combination of basic module. (A 6-ways switchgear is the maximum size within one common SF6-tank.) Moreover, MGC Series has a unique flexibility due to its extendibility and the possible combination of fully modular and semi modular configurations via the dedicated fully insulated and shielded busbar kit to provide diversified power supply and distribution solutions.
4. High safety and reliability Primary live parts and switches are enclosed within the stainless steel gas tank for connection with external elements via the bushing to prevent direct contact with live parts; the equipment is provided with reliable pressure relief device and pressure relief duct to ensure the safety of personnel and equipments in case of accidents; it is installed with perfect mechanical interlocking devTce that can guard against maloperation to the maximum.
5. Independently developed new mechanism The independently developed and designed spring operating mechanism optimizes the parts and simplifies transmission mechanism, which makes the whole mechanism more stable and flexible in transmission and can be extended for intelligent control and operation. The interlock is in rigid connection, which is more reliable as compared with soft connection. Components, micro switch and PCB are in modularized integration to facilitate maintenance and repair.
6. Advanced welded sealing technology MGC switchgear aims to Strictly control material strength, rigidity and compressed deformation to components such as dynamic seal (switch operation shaft), manometer, high-tension (HV)bushing and explosion relief valve that associated with elastic seal so as to ensure sealing performance through a series of tests and testing approaches.
Parameters | Sr. NO. | Items | Unit | C-module | F-module | V-module |
| 1 | Rated voltage | Kv | 12/24 | 12/24 | 12/24 |
| 2 | Rated frequency | Hz | 50/60 | 50/60 | 50/60 |
| 3 | Rated current | A | 630 | see 1) | 630 |
| 4 | Rated insulation level | Power-frequency withstand voltage 1min | Common value | kA | 42/50 | 42/50 | 42/50 |
| Across the isolating distance | 48/60 | 48/60 | 48/60 |
| Control and auxiliary circuit | 2 | 2 | 2 |
| Lightning impulse withstand voltage | Common value | 75/125 | 75/125 | 75/125 |
| Across the isolating distance | 85/145 | 85/145 | 85/145 |
| 5 | Rated short-time withstand current | kA/s | 25/4 | -- | 25/4 |
| 6 | Rated peak withstand current | kA | 63 | -- | 63 |
| 7 | Rated short-circuit making current | kA | 63 | see 2) | 63 |
| 8 | Rated short-circuit breaking current | kA | -- | see 2) | 25/25 |
| 9 | Rated transfer current | A | -- | 1700/800 | -- |
| 10 | Rated active load breaking current | A | 630 | -- | -- |
| 11 | Rated closed circuit breaking current | A | 630 | -- | 630 |
| 12 | Mechanical endurance | load break switch/circuit breaker | Ops | 10000 | 10000 | 20000 |
| | Isolating/earthing switch | 3000 | 3000 | 3000 |
| 13 | Circuit resistance | μΩ | ≤150 | -- | ≤150 |
| 14 | Rated pressure of SF6 gas (at 20ºC) | Mpa | 0.04 | 0.04 | 0.04 |
| 15 | Annual leakage rate | % | 0.01 | 0.01 | 0.01 |
| 16 | Degree of protection | | Enclosure | | IP4X | IP4X | IP4X |
| | | | Gas tank | | IP67 | IP67 | IP67 |
Address:
No. 338 Jinhai Avenue, Wenzhou Economic & Technical Development Zone, Wenzhou, Zhejiang, China
Business Type:
Trading Company
Business Range:
Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters
Company Introduction:
Since its foundation in 2010, Murge Electric Co., Ltd., has been engaged in R&D, manufacture and sales of green gas insulated switchgear, MV vacuum circuit breaker, earthing switch and electric accessories. It has a registered capital of 28 million US dollars, covering an area of 86666and having staff over 500, located in Wenzhou Economic and Technological Development Zone.
Murge has established a sound management system in accordance with the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System and other standards. It forges an advanced intelligent manufacturing system based on lean production and integration of information technology and industrialization. We have imported advanced production and testing equipment such as Japanese-made CNC punching machine, laser cutting machine, automatic welding robot, helium leak detection equipment, and APG injection machine. Our products have obtained relevant certificates at home and abroad, and are well-received by customers owing to good quality and service.
