China Factory Suppliers DRM-24 SF6 Gas Insulated Switchgear 24KV for Power Distribution System
Model and meaning
◆ International standard
- IEC60056, IEC60298, IEC60129
- IEC60420, IEC60265, IEC60694, etc.
◆ Chinese standard
- GB3804, GB3906, GB11022, etc.
Suitable for high and low temperature (+40°C ~ -40°C), wet, dusty, salt pollution, mine, high altitude (less than 4000 meters) and other environments. Short-term immersion within 24 hours does not affect the use.
Note: If the altitude is higher, please indicate the specific altitude.
Main features of product
DRM-24 series gas cabinet SF6 gas as arc extinguishing and insulation medium.
Switch cabinet is fully sealed, fully insulated structure; Bus bars, switches and live parts are completely enclosed in stainless steel housing.
The chamber is filled with 0.04Mpa SF6 gas, the protection level is up to IP67: The whole switch device is completely unaffected by the external environment, even in extreme cases such as short-term flooding can ensure the normal operation of the switch, and the product is maintenance-free for life.
The switchgear has a perfect "five prevention" interlock device, which completely prevents personnel and equipment operation failures caused by human error.
All switchgear has a reliable safe pressure relief channel, which can guarantee the personal safety of the operator even in extreme circumstances.
Switchgear is divided into two categories: fixed unit combination and expandable unit combination.
The switch cabinet usually enters and exits from the front, and can also realize side exit or side expansion according to different installation positions.
The size of the cabinet is easy to install, and can be suitable for small space and poor environmental conditions.
The switch cabinet can be configured with electric, remote control and monitoring devices according to different needs of users.
Flexible outlet and expansion methods
All DRM-24 modules can be connected by side outlet and side expansion or side outlet and top expansion according to user requirements, which meets the needs of power supply schemes to the maximum extent.
Performance index
| Parameter | Specification / Value |
|---|---|
| SF6 Gas Properties | |
| Sf6 gas pressure | The absolute pressure at 20°C is 0.04Mpa |
| Annual gas leakage rate | 0.05% |
| Class of protection | IP67 |
| Air chamber stainless steel thickness | 3.0 mm |
| Bus Bar Specifications | |
| Switchgear inside the bus | 400mm² Cu |
| Switchgear ground bus | 150mm² Cu |
| Color Coding | |
| Switch cabinet front panel | RAL 7012 |
| Side panel and cable room front cover plate | RAL 7035 |
| Standards Compliance | |
| GB Standards | GB/T11022, GB3906, GB1985, GB3309, GB16926, GB38041, GB1984 |
| IEC Standards | IEC60056, IEC60129, IEC60256, IEC60298, IEC60420, IEC60694 |
| Normal Operating Environment Conditions | |
| Maximum temperature | 40℃ |
| Minimum temperature | To -40 °C |
| Maximum mean relative humidity | ≤ 95% |
| Sea level | ≤ 2000 m |
Frequently Asked Questions
What is the insulation medium used in the DRM-24 series switchgear?
The DRM-24 series gas cabinet utilizes SF6 (Sulfur Hexafluoride) gas as both the arc extinguishing and insulation medium, enclosed in a fully sealed stainless steel housing.
What is the ingress protection (IP) rating of the DRM-24 switch cabinet?
It features a protection level of IP67. This high rating ensures the switchgear is completely unaffected by external environmental factors, even during short-term flooding.
What are the standard operating temperature limits for this switchgear?
The DRM-24 series is designed to operate reliably in ambient temperatures ranging from a minimum of -40°C up to a maximum of +40°C.
Can the DRM-24 switchgear be expanded side-by-side?
Yes. The DRM-24 modules support flexible outlet and expansion configurations, including side outlet with side expansion or side outlet with top expansion, to meet diverse power supply schemes.
Does the switchgear include safety interlocks?
Yes, it features a complete "five prevention" mechanical and electrical interlock system to prevent operational failures caused by human error, alongside a safe pressure relief channel for operator protection.