GCS

Product details：

Model Meaning
Conditions for use
1. For indoor use, the altitude of the place of use must not exceed 2000m.
2. The ambient air temperature is not higher than +40 degrees and not lower than -5 degrees. The 24-hour average temperature is not higher than +35 degrees. When it exceeds, it must be operated in accordance with the actual situation.
3. The relative humidity of the surrounding air does not exceed 50 % at a maximum temperature of 40 degrees, and a higher relative humidity is allowed at a low temperature: if it is 90 % at +20 degrees, it should be taken into account that due to changes in temperature, clotting may occur accidentally. effect.
4. The inclination of the installation and vertical surface does not exceed 5 degrees, and the entire set of cabinets is relatively flat.
5. The device shall be installed in a place where there is no severe vibration and impact and where it is not sufficient to cause undue corrosion of the electrical components.
When the user has special requirements, he may negotiate with the manufacturer.
Main technical parameters
Main circuit scheme
The main circuit scheme of the switching device has a total of 32 sets of 118 specifications, excluding schemes and specifications derived from changes in the control and protection of the auxiliary circuit. Including the needs of power generation, power supply and other power users, the rated operating current is 4000A, suitable for distribution Transformers of 2500 KVA and below.
In addition, a capacitor compensation cabinet is designed to meet the needs of increasing the power factor. Considering the needs of the integrated investment, the reactor cabinet is designed.
Auxiliary circuit scheme
The GCS auxiliary circuit can be divided into DC operation and AC operation.
The auxiliary circuit of the DC operation part is mainly used for the low-voltage plant system of the power plant substation. Suitable for low voltage plant system, working power feed, power feeder and electric feeder for 200 MW and below and 300 MW and above capacity units.
The auxiliary circuit of the AC operation part is mainly used for the low-voltage system of the substation of factories, mines and high-rise buildings. The combination of Yushuang power supply operation control is applicable. It also has a control circuit such as Operation electric interlock spare self-cast and self-recovery.
The DC control power supply is 220V or 110V DC, and the AC control power supply is 380V or 220V AC, a set of cabinets composed of drawer units. The 220V control power supply is quoted from the public control power supply that specifically controls the transformer power supply in this cabinet. The public control power supply adopts the UnGrounded method to control the transformer, and the 24V power supply is left for use when the weak signal light is needed.
Structural characteristics
1. The main frame of the device adopts 8MF steel, and the frame adopts two structural forms: assembly and partial welding. The main architecture is equipped with modular holes E = 20mm.
2. Each function room of the device is strictly separated, and its compartment is mainly divided into a function unit room, a bus room, and a cable room. The functions of each unit are relatively independent.
Installation and use
After the product arrives the receiving place, should check the package is complete without damage first, find out the problem should inform the relevant Department of contract to do business record in time, analyse the reason together, do Visa and aftercare. For products that are not immediately installed, they should be placed in an appropriate place for safekeeping in accordance with normal conditions of use and the requirements of temporary storage of electrical equipment.
1. The installation of the product should follow the schematic diagram. The basic groove steel and bolts used in bolt fixation are owned by the user. When the main bus is connected, if the surface is uneven due to transportation, custody, etc., it must be flattened and then connected and tightened.
2. When the device is installed individually or in a row, the vertical degree and the deviation of the cabinet surface and the gap between the cabinets shall comply with the regulations.
Use caveats
1. The device is a low-voltage distribution cabinet that is not installed against the wall, is operated on the front, and is maintained on both sides. The maintenance channel and door of the cabinet must be a qualified professional to enter or open for operation, inspection and maintenance.
2. Air circuit breakers and plastic shell circuit breakers are divided several times, especially after short-circuit separation. After closing, contact parts will be burned and carbon materials will be produced, and the contact resistance will increase. Maintenance and overhaul should be carried out according to the circuit breaker's instructions.
3. After installation and maintenance, the segregation between the compartments and the functional units must be strictly checked to ensure that the device is well separated from each other to prevent failure and expansion.