Description
MDIS49 series — Dry Air insulated switchgear is a new generation of switchgear, using dry air as the insulating medium, continuing the traditional gas insulated switchgear safety and reliability, maintenance-free, strong environmental applicability. It does not use SF6 gas at all, has no impact on the environment, and is more in line with the requirements of various countries and regions for green environmental protection.
Dry air is a commonly used industrial gas that has a lower environmental impact and higher safety performance than SF6 gas. Even if there is a gas leak problem, it will not have any impact on operation and maintenance personnel and the environment.
MDIS49 Green type Gas-insulated switchgear is suitable for primary distribution of three-phase AC power supply system .The Products are widely used in power system, power generation, urban network subway, rail transit, petrochemical, metallurgy and other large industry。
Product features:
Environmentally friendly: no SF6, only dry air is used as insulation medium; Use thermoplastic materials recyclable.
Advanced technology: vacuum circuit breaker adopts solid sealed pole structure, the main component is sealed in the inflatable box, maintenance-free design; the busbar is made of copper bar with excellent conductivity.
Friendly operation: the low-voltage compartment adopts three-door structure, and the door of the low-voltage room and the mechanism room are opened independently, which does not affect each other and avoids disoperation. When the door of the mechanism room is closed, the mechanism can be operated to ensure the safety of person.
Advanced technology: the products are assembled in a million clean workshop; the gas box adopts laser welding technology and helium leak detection technology to detect the whole gas box.
Reliable and safe: the circuit breaker and the isolation switch are configured with mechanical interlocking and electrical interlocking; Cable room door and circuit breaker equipped with electrical interlocking; each compartment is equipped with an independent pressure relief device.
Easy installation: on-site installation does not require gas treatment, and product installation can be completed quickly.
Applicable standards: Refer to international standards such as IEC62271-200.
Load break switch
The load break switch is a 3-position switch disconnector and earthing switch using Dry Air as an arc-quenching medium, the switch positioning is close open earthed. In the open position, the switch satisfies the disconnector requirements.
| 3-position load break switch (closed, open, and earthed) Spring mechanism consists of single spring action, double spring operating mechanism. Among them, the double spring operating mechanism used in switchgear unit, can realize the automatic tripping trip. |  |
