Overview
The SYSRM16-12 gas-insulated SF6 metal-enclosed fully insulated ring main switchgear has passed the type test of the National High Voltage Apparatus Testing Center. It is widely used in 10kV/6kV power distribution systems and is the preferred switchgear product for various urban and rural user substations and distribution systems.
The switchgear adopts a modular unit design and can be combined according to different applications. It consists of two major categories: fixed unit combinations and extendable unit combinations, meeting the needs of various substations for flexible use of compact switchgear.
The SYSRM16-12 gas-insulated switchgear is a completely sealed system, with all live parts and switches enclosed in a stainless steel housing. The entire switchgear is unaffected by external environmental conditions, thereby ensuring operational reliability and personal safety, and achieving maintenance-free operation. By selecting extendable busbars, any combination can be realized, achieving full modularization. The extendable busbars are safely insulated and shielded, ensuring high reliability and safety. The SHSRM16-12 gas-insulated switchgear can also provide TV-based automation solutions, forming the concept of intelligent switchgear and minimizing on-site installation and commissioning workload.
The SYSRM16-12 gas-insulated switchgear is available in non-extendable standard configurations and extendable standard configurations. Due to the combinability of full modules and half modules as well as its own extendability, it offers extremely exceptional flexibility.
The SYSRM16-12 gas-insulated switchgear complies with GB standards. The design life exceeds 30 years under indoor conditions (40℃) and outdoor conditions (-50℃).
Performance Specifications
◆ SF6 gas pressure
◇ Absolute pressure at 20℃: 1.4 bar
◇ Annual gas leakage rate: 0.2%/year
◇ Protection degree: IP67
◇ Stainless steel thickness of gas compartment: 3.0mm
◆ Busbar
◇ Busbar inside switchgear: 400mm2Cu
◇ Earthing busbar of switchgear: 150mm2Cu
◆ Color
◇ Front panel of switchgear: RAL7012
◇ Side panels and front cover of cable compartment: RAL7035
◆ Normal operating environmental conditions
◇ Maximum temperature: 40℃
◇ Minimum temperature: -50℃
◇ Maximum average relative humidity: ≤95%
◇ Altitude: ≤2000m
◆ Compliant standards
GB/T11022 GB3906 GB1985
GB16926 GB38041 GB1984 GB3309
IEC60056 IEC60129 IEC60256
IEC60298 IEC60420 IEC60694
Technical Parameters
| Name | Unit | C Module | F Module | V Module | CB Module | ||
| Load Break Switch | Combined Apparatus | Vacuum Switch | Disconnector/Earthing Switch | Vacuum Circuit Breaker | Disconnector/Earthing Switch | ||
| Rated voltage | KV | 12 | 12 | 12 | 12 | 12 | 12 |
| Rated frequency | HZ | 50 | 50 | 50 | 50 | 50 | 50 |
| Power frequency withstand voltage (phase-to-phase/breaking gap) | kV | 42/48 | 42/48 | 42/48 | 42/48 | 42/48 | 42/48 |
| Lightning impulse withstand voltage | kV | 75/85 | 75/85 | 75/85 | 75/85 | 75/85 | 75/85 |
| Rated current | A | 630 | Note 1) | 630 | 1250/630 | ||
| Breaking capacity | |||||||
| Rated closed-loop breaking current | A | 630 | |||||
| Rated cable charging breaking current | A | 10 | |||||
| Rated short-circuit making current (peak) | A | 50 | 80 | ||||
| Rated peak withstand current | kA | 50 | |||||
| Rated short-time withstand current | kA/3S | 20 | 25 | ||||
| Rated short-circuit breaking current | kA | 31.5 | 20 | ||||
| Rated transfer current | A | 1700 | |||||
| Maximum current of associated fuse | A | - | 125 | ||||
| Circuit resistance | -n | ≤300 | ≤600 | ||||
| Mechanical life | Operations | 5000 | 3000 | 5000 | 2000 | 5000 | 5000 |
Note: 1) Depends on the current rating of the fuse
