Product Overview

Summary

HRM16-12/24 (1250A) inflatable cabinet series high pressure fully enclosed and fully insulated compact ring network switch equipment is a small metal sealed switch equipment system. This product is specially developed according to the actual demand of large current in the urban distribution system. The internal circuit breakers and cable props use the accessories rated as 1250A. Production, 1250A inflatable cabinet is mainly aimed at the wider application of V units, and the size of the cabinet has also been widened. Because of its scalability, the switch device has unique flexibility in realizing the combination mode of full modular and half mode missing. The stainless steel gas chamber is filled with SF6 gas, which seals all the live parts and the switch completely and is isolated from the outside. This fully sealed system ensures that the internal switches and all the charged parts are not affected by the change of the external environment, so as to ensure high reliability, personnel safety, and actual maintenance free. It can meet the different requirements of distribution and distribution of power supply and distribution.

The HRM16-12/24 (1250A) inflatable cabinet executes the GB standard.

The design life under indoor conditions (40 degrees Celsius) and outdoor conditions (-50 C) is over 30 years.

main features

The HRM16-12/24 (1250A) inflatable cabinet uses SF6 gas as an arc extinguishing and insulation medium.

The switchgear is fully sealed and fully insulated. Busbars, switches and live parts are completely enclosed in stainless steel housing. The cavity is filled with 1.4bar SF6 gas, the protection grade reaches IP67, the whole switch device is completely unaffected by the external environment conditions. Even in the extreme conditions of short time water immersion, the switch can also ensure the normal operation of the switch, and the product is free of maintenance for life.

The switchgear has a perfect "five guard" interlocking device to completely eliminate the failure of personnel and equipment caused by human error operation.

All switchgear have reliable safety relief passageway, even in extreme cases, it can protect operator's personal safety.

Switchgear is divided into two types: fixed unit combination and extendable unit combination.

The switchgear usually comes in and out of the front line, or the side outlet or side expansion can be achieved at different installation positions.

Cabinet size is easy to install, and can be suitable for small space and poor environmental conditions.

Switchgear can be equipped with electric, remote control and monitoring devices according to the different needs of users.

performance index

[SF6 gas pressure] normal operating environment conditions

"2O" C, the absolute pressure is 1.4bar 1.4bar, the highest temperature is 40 degrees.

The annual leakage of gas is 0.2 per thousand per year, the lowest temperature is -50 degrees.

(IP67) the maximum average relative temperature is less than 95%.

The air chamber stainless steel thickness is 3.0mm, the altitude is less than 2000 meters above sea level.

Busbar meet standards

400mm 2Cu GB/T11022 GB3906 GB1985 per switch line.

Switch busbar ground bus 150mm 2Cu GB16926 GB38041 GBI984

Color GB3309

Front panel of switch cabinet RAL7012 IEC60056 IEC60129 IEC60256

Case plate and cable compartment front cover RAL7035 IEC60298 IEC60420 IEC60694