Short Description:
The main function of switch cabinet is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and electric energy conversion. The components in the switch cabinet mainly include circuit breaker, disconnecting switch, load switch, operating mechanism, mutual inductor and various protective devices. There are many classification methods of switchgear, such as the circuit breaker installation can be divided into moving switchgear and fixed switchgear; Or according to the different structure of the cabinet, it can be divided into open switch cabinet, metal closed switch cabinet, and metal closed armored switch cabinet; According to the different voltage levels can be divided into high voltage switchgear, medium voltage switchgear and low voltage switchgear. Mainly applicable to power plants, substations, petrochemical, metallurgical steel rolling, light industry textile, factories and mining enterprises and residentia
The main function of switch cabinet is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and electric energy conversion. The components in the switch cabinet mainly include circuit breaker, disconnecting switch, load switch, operating mechanism, mutual inductor and various protective devices. There are many classification methods of switchgear, such as the circuit breaker installation can be divided into moving switchgear and fixed switchgear; Or according to the different structure of the cabinet, it can be divided into open switch cabinet, metal closed switch cabinet, and metal closed armored switch cabinet; According to the different voltage levels can be divided into high voltage switchgear, medium voltage switchgear and low voltage switchgear. Mainly applicable to power plants, substations, petrochemical, metallurgical steel rolling, light industry textile, factories and mining enterprises and residential areas, high-rise buildings and other different occasions.
1. Rating: Rated voltage 3~12KV, rated current reach to 630A for load break switch and 125A for combined switchgear .
2. Application :mainly applicable in urban power grid construction and renovation project. industrial and mining enterprises. high-rise buildings and communal facilities .For power distribution .controlling and protection on electric equipment as the loop power supply unit or terminal equipment. It also can be installed in preloaded substation.
3. Feature: Equipped with vacuum load switch and spring operating mechanism which can be operated by hand or electric. Earthing switch and insulating switch are equipped with hand operating mechanism .With small volume and high security.
4. Standard: IEC60420
Working Conditions
1. Ambient air temperature: -15℃~+40℃. Daily average temperature:≤35℃.
2. Altitude: ≤1000m.
3. Relative humidity : Daily average≤95% ,daily averange of vapour pressure≤2.2kpa Monthly average≤90%,monthly averange of vapour pressure≤1.8kpa.
4. Earthquake intensity: ≤magnitude 8.
5. Applicable in the places without corrosive and flammable gas.
Main technical parameter
No. | Item | Unit | Data | |
1 | Rated voltage | kV | 12 | |
2 | Rated current | Load break switchgear | A | 630 |
Combined switchgear | A | 125 | ||
3 | Rated short-circuit breaking current | kA | 31.5 | |
4 | Rated active on-load breaking current | A | 630 | |
5 | Rated short-time withstands current | kA | 20 | |
6 | Rated withstands current(Peak) | kA | 50 | |
7 | Rated power frequency voltage withstands inter-phase, to earth and to the open contact | kV | 42/48 | |
8 | Thundering withstands voltage inter-phase, to earth and to the open contact | kV | 75/85 | |
9 | Mechanical life | times | 10000 | |
10 | Rated take-over current | A | 3150 | |
11 | Operating mode | Manual or automatic | ||
12 | Protection level | IP2X |