ZHCS is a new type of low-Voltage switchgear developed by our company to introduce advanced technology of foreign products. It is suitable for power distribution Systems in power plants, petroleum, chemical, metallurgy, textile, high-rise buildings and other industries. In large power plants, petrochemical systems, etc., where automation is high and the interface with the computer is required, the three-phase AC frequency is 50/60Hz, the rated working voltage is 380 V/400V/660V, and the rated current is 6300A and below. Low-voltage power distribution equipment for power distribution, power supply centralized control, and reactive power compensation in power supply and power supply systems.
Technical parameterPerformance Drawing
Functional unit 1. The module height of the drawer is 160mm. Divided into 1/2unit, 1unit, 3/2unit, 2unit, 3unit, five size series. Unit circuit rated current 400A and below;
2. The drawer only changes in height, and its width and depth dimensions do not change. Drawers of the same functional unit have good interchangeability;
3. Each MCC cabinet can be installed with up to 11 one-unit drawers or 22 1/2-unit drawers. One or more of the drawers use a multifunctional rear panel;
4. The drawer inlet and outlet lines adopt different number of inserts of the same specification chip structure according to the current size;
5. 1/2 unit drawer and cable room transfer adopts back plate type structure ZJ-2 type adapter;
6. The transfer of the unit drawer and cable compartment is made of the same size rod or tubular structure ZJ-1 type adapter according to the current division;
7. The drawer unit is equipped with a mechanical interlock.
Main electrical components The selection principle of the main electrical components is based on the introduction of technology,and the domestic can be mass-produced in series,and can meet the requirements of high performance of the device: 1. The main line of the power supply and feeder unit circuit breaker is AH series.The AH type circuit breaker has the characteristics of good performance,compact structure, light weight and strong series.The price is relatively low, easy to maintain and use,and various performance indicators can meet the requirements of the device; 2. Drawer unit(motor control unit, partial feed unit) circuit breaker main selection SM1,TG,TM30 series molded case circuit breaker. These Switches have the characteristics of good performance,compact structure,short arc or no arcing, high technical and economic indicators,and can meet the requirements of this device; 3. The 9series is selected for the isolating Switch and the fuse type isolating switch.The series has high reliability,strong breaking capacity and mechanical interlocking; 4. The main selection of fuses is NT series; 5. AC contactors are available in B series and LC1-D series.
Device characteristics 1. Increase the heat capacity of the adapter, and greatly reduce the additional temperature rise caused by the temperature rise of the adapter to the connector, cable head, and spacer; 2. The separation between functional units and compartments is clear and reliable. It does not affect the operation of other units due to the failure of one unit, so that the fault is limited to a minimum range; 3. The busbars are arranged in a flat arrangement to make the device have good dynamic and thermal stability and can withstand the impact of 80/176kA short-circuit current; 4. The number of circuits in MCC cabinets is up to 22 times, fully considering the needs of large single-unit capacity power generation, petrochemical systems and other industries for automated electric door(machine) groups; 5. The connection of the unit to the external cable is done in the cable compartment and the cable can be accessed up and down. The current transformer device is installed in the cable compartment to facilitate installation and maintenance; 6. The same power distribution system can limit the short-circuit current through the matching of the current limiting reactor, stabilize the bus voltage at a certain value, and partially reduce the requirements on the short-circuit strength of the components; 7. The drawer unit has a sufficient number of secondary connectors(32 pairs for 1 unit and above, and 20 pairs for 1/2 units), which can meet the requirements of the number of docking points for computer interface and automatic control loop.
Environmental conditions 1. High ambient temperature: +40ºC
2. Low ambient temperature: -15ºC 3. Relative humidity: The daily average relative humidity: ≤95%, and the daily average water vapor pressure does not exceed 2.2KPa. 4. Altitude: <1000m
5. Earthquake intensity: no more than 8 degrees. 6. The surrounding air should not be significantly polluted by corrosive or combustible gas, water vapor, etc. 7. No violent vibration place.
Standard The design of the device meets the following criteria
IEC439-1 low voltage switchgear and control equipment
GB7251 low voltage Switchgear
ZBK360001 Low-voltage withdrawable switchgear
Job siteCompany profile Xuzhou Wojifan Electrical Equipment Co., Ltd. Was established in August 2024. The address is located in Pizhou Electronics Industrial Park, Jiangsu Province. Located at the junction of Jiangsu, Shandong, Henan and Anhui provinces, the transportation is extremely convenient and the transportation conditions are unique.
Xuzhou Wojifan Electrical Equipment Co., Ltd. Mainly produces S13, S20, S22 series 10KV, 20KV, 35KV oil-immersed power transformers; SH15 amorphous alloy transformer; SCB12, SCB13, SCB14, SCB18 series 10KV, 20KV, 35KV epoxy resin cast dry type power transformers; SCBH15 amorphous alloy transformer; SGB series non-encapsulated dry power transformer, low loss power transformer such as on-load voltage regulation; Combined American type, box-type substation, etc. The technical standard strictly adopts the international GB10941-2013; GB/T6451-2015, GB/T1094.11-2007/GB/T10228-2015 standards.
Producing facility Service
Packing and delivery Our advantagesOur company has won the trust and support of our customers with its excellent quality, comprehensive service and honest cooperation. In addition to the domestic market, our products are exported to Central Europe, Eastern Europe, Southeast Asia, the Middle East, Africa, America, Australia and other regions and countries.
In line with the principle of integrity and honesty, we provide perfect services for new and old customers, so that you can get affordable products, assured equipment and thoughtful service. We provide you with professional technical solutions and services. If you have any problem, please feel free to contact us and our technicians will find a complete solution for you.