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Distribution transformer integrated power distribution cabinet (JP cabinet) is designed according to the requirements of power grid construction and transformation and the experience of power grid operation, in line with the principles of safety, economy, rationality and reliability. It has power distribution, control, protection, reactive power compensation, A new type of outdoor integrated distribution box with multiple functions such as electric energy metering, and leakage protection function can be added according to user requirements. The product has the advantages of novel and reasonable structure, high protection level, convenient installation, commissioning, maintenance and inspection. The product conforms to GB7251.1-1997 and has passed the 3C certification. It is an ideal low-voltage complete set for power grid transformation. Distribution transformer integrated power distribution cabinet (JP cabinet) is suitable for AC 50HZ, 0.5kV voltage level, and rated voltage below 0.4kv power transmission and distribution system. This series of products integrates automatic reactive power compensation and power distribution, and integrates electric energy measurement. , Leakage protection, over-current, over-voltage and phase loss protection and other functions as a new type of indoor and outdoor low-voltage power distribution cabinet, with small size, easy installation, low cost, anti-theft, strong adaptability, aging resistance Accurate, no compensation misunderstanding and other advantages. It is an ideal product of choice for power grid transformation.
The comprehensive distribution box (JP cabinet) is made of high-quality 201/304 stainless steel. Simple appearance and easy installation. The steel plate is treated by electrostatic spraying, which can effectively reduce outdoor light pollution and increase the service life of the cabinet. The door panel is foamed to make the door panel more firm and not easy to deform. The box door lock adopts American-style box variable locks to enhance the ability to prevent electricity theft. Triangular iron lifting rings are installed on both sides of the box body, which is convenient for installation and debugging on the construction site.
Main application areas: Widely used in substations, factories, industrial and mining enterprises, large power plants, petroleum, chemical enterprises, large steel mills, high-rise building power centers, reactive power compensation, metering, power distribution and other occasions.
Model Description
Product technical parameters and external dimensions
Main functions of the product:
1. Power distribution function: completely replace the traditional power distribution box function in the past
2. Metering function: the controller integrates precise metering devices, which can monitor, record and save various indicators of electric energy
3. Compensation function: At the same time of power distribution, reactive power compensation can be automatically performed on the line as needed
. 4. Communication function: with its own wireless communication module, the operator can operate the equipment remotely (including: reading data, setting settings, remote manual switching, etc.)
5. Display function: full Chinese interface, which can display the three main parameters of the power grid, such as voltage, current, harmonic voltage, harmonic current, active power, reactive power, active energy, reactive energy, power factor, and the operating status of the capacitor in real time.
6. Protection function: It has perfect alarm and action functions such as over-voltage, under-voltage, phase loss, zero-sequence current (load imbalance) exceeding the standard, and harmonic exceeding the standard to protect the safety of the equipment.
7. Recording function: It can record the voltage, current, active power, reactive power, active power, martial arts electroplating, power factor, harmonic distortion, 3, 5, 7, 9, 111, 13, sub-harmonic and voltage online every month and every day Maximum and minimum values and when they occurred. It can record all the operation time, including events such as device up and down points, manual input/removal of capacitors, etc., to provide the necessary basis for accident analysis. The switching process of reactive power compensation capacitors can be recorded, providing intuitive information for users to understand the effect of reactive power compensation in detail.
Product electrical features:
1) The electrical scheme fully considers the characteristics of the power grid, and is designed for safety, reliability and ease of use, taking into account the characteristics of small towns, and is also suitable for industrial and mining enterprises.
2) Considering the respective characteristics of rural power grid and urban power grid, we select high-performance reactive power compensation controllers suitable for power grid transformation requirements according to specific conditions, and can also add leakage protectors according to user needs.
3) The executive element of capacitor switching can adopt electronic switch or special AC contactor according to the user's requirements.
4) By selecting high-performance metallized polypropylene film self-healing low-voltage shunt capacitors, the power factor can be improved, energy can be saved, and the quality of power supply can be improved.
5) The response is timely and fast, the compensation effect is good, and the work is reliable, and leakage protectors can also be added according to user needs;
6) Protection functions: overvoltage, overload, undervoltage, undercurrent, short circuit, phase loss, zero sequence overrun, etc. ;
7) Automatic operation function: push out after power failure, and automatically recover after 10s delay after power transmission;
8) It can improve the power factor of the grid to above 0.95;
9) It is made of stainless steel or SMC material, molded under high temperature and high pressure, with high strength, Modulus and good impact resistance;
10) The weight is 1/3 lighter than the metal box of the same specification, which can replace the metal box and greatly save metal materials;
11) Excellent electrical insulation can ensure indoor and outdoor use Safety;
12) Good corrosion resistance and anti-aging performance, can be used in a variety of complex environments, and the service life can reach 20 years;
13) The combined box is easy to install, and the flexible combination can meet the needs of various spaces.
Cabinet structure:
1. The frame is fully assembled with section steel and partially welded. Its rigidity and bearing capacity meet the installation requirements of electrical components. The metal parts of the cabinet are anti-corrosion measures galvanized or electrostatic sprayed.
2. The main busbars are arranged behind the upper part of the cabinet, and the busbar clamps are used as a building block combination structure, which has high mechanical strength and insulation strength, and can withstand an effective value of 15kA and a peak value of 30kA.
3. The shell is made of stainless steel, which is anti-corrosion. Rubber inserts are added to the edge of the door. When the door is closed, the inserts between the door and the cabinet have a certain compression stroke to prevent direct collision between the door and the cabinet. And improve the protection level of the door.
4. The instrument door equipped with electrical components is connected to the housing with multi-strand annealed copper wires, and the mounting parts in the cabinet are connected to the housing with grounding knurled screws to form a complete grounding protection circuit.
5. The protection level of the shell reaches IP44.
1. Ambient air temperature: -5~+40 and the average temperature should not exceed +35 in 24h.
2. Install and use indoors. Altitude above sea level for operation site should not exceed 2000M.
3. Relative humidity should not exceed 50% at max temperature +40. Higher relative humidity is allowed at lower temperature. Ex. 90% at +20. But in view of the temperature change, it is possible that moderate dews will produce casually.
4. Installation gradient not exceed 5.
5. Install in the places without fierce vibration and shock and the sites insufficient to erode the electrical components.
6. Any specific requirement, consult with manufactory.
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