summarize

Outdoor integrated power distribution cabinet series is suitable for AC 50Hz, rated voltage below 0.4kV transmission and distribution system. This series of products integrates automatic compensation and distribution, leakage protection, energy metering, overcurrent, overvoltage and phase loss protection and other functions as one of the new indoor and outdoor low-voltage distribution cabinet, with small size, easy installation, low cost, anti-theft, strong adaptability, aging resistance, accurate operation, no compensation errors and other advantages. Is the ideal power grid transformation of the first choice products.

1. Use

JP cabinet low-voltage comprehensive compensation distribution cabinet is mainly used for leakage, overload protection, lightning protection and reactive power compensation of low-voltage power grid to improve safe power consumption and power factor of the grid, reduce line loss, and improve power quality. The series of low-voltage comprehensive compensation distribution cabinet is based on intelligent reactive power controller as the core, using contactless capacitive switch or capacitive contactor as the switching device of capacitor bank, automatically switching capacitor according to the power factor of the power grid, to ensure that the power grid always has a high power factor. The compensation element of JP low voltage comprehensive compensation distribution cabinet is capacitor, which can be used in the occasions of low harmonics; The compensation element of JPS-31 low-voltage comprehensive compensation distribution cabinet is also a capacitor, but it can be divided and cut according to the load profile of each phase. The compensation element of JP low-voltage comprehensive compensation distribution cabinet is composed of a capacitor and a reactor in series, which has the function of harmonic suppression and can be used in occasions with higher harmonics.

2. Conditions of use

1. Ambient temperature: -30℃ ~ 52℃.

2. Relative humidity: not more than 90%.

3. There is no corrosive gas, no conductive dust, no flammable and explosive media in the surrounding environment.

4. Altitude: No more than 2500m.

5. The installation site is free from violent vibration and turbulence, and the installation inclination is not more than 5 degrees.

Note: If there are special conditions of use, please negotiate with our company when ordering.

3. Implement standards

ICE439 "Low-voltage Switchgear and Control Equipment"

GB7251 "Low-voltage Switchgear"

GB3983.1-89 "Low voltage Shunt Capacitor"

GB12747-91 "Self-healing Low voltage Shunt Capacitor"

DL/T597-1996 Technical conditions for ordering low voltage reactive power compensators

GB/T15576-1995 Low voltage reactive power static compensation device general technical conditions

DL500-92 voltage monitor ordering technical conditions

GB9466-88 Basic test methods for low-voltage switchgear sets

GB1497-85 Basic standard for low-voltage electrical appliances

GB1208-1997 Current transformer

GB4942.2-85 Low voltage electrical enclosure protection class

Fourth, structural characteristics

1. The main components inside the comprehensive compensation distribution cabinet are leakage protector, capacitor, reactor (JPS H type), knife melt switch (or knife switch, choose one of two), fuse (or small circuit breaker), contactor (or SCR; Composite switch), controller, etc.; JPS H type reactive power compensation cabinet can be modular design according to user requirements, the module set capacitor, reactor, fuse, contactor in one, compact structure, novel layout.

2. There are power factor meter, ammeter, voltmeter (or power indicator, choose one of two) on the panel of the cabinet, which is convenient for users to carry out real-time observation; The top of the cabinet is provided with a fan for cooling (optional), which is controlled by a temperature control switch, and the panel is provided with a manual/automatic transfer switch for controlling the fan.

3. The cabinet body is made of high-quality cold-rolled steel plate or stainless steel plate, with good smoothness, and the outer surface is sprayed with plastic treatment (stainless steel plate is optional), and the anti-corrosion ability is strong. The internal frame is made of galvanized steel plate, aluminum-zinc clad steel plate or stainless steel plate (optional) to ensure better electrical conductivity and corrosion resistance.

4. Complete protection functions: short circuit, overload, overvoltage, undervoltage, phase deficiency, residual current (leakage), power supply side broken neutral line protection; Easy to set the parameters; When external related faults occur, the operation will automatically exit, and the operation will automatically resume after power supply (the main switch has the function of automatic reclosing).

5. Technical parameters

1. Rated voltage: 220V, 380V(400V), 660V

2. Rated frequency: 50Hz

3. Rated compensation capacity: 4 ~ 600kvar

4. Operating voltage range: 0.8 ~ 1.1Un

5. Capacitor connection: "△" or "Y".

6. Measurement error: Voltage: 0.5% Current: 1.0% Reactive power: 1.0%.

Seven. Switching mode: three-phase automatic switching (JPS 3 type), fractional switching (JPS 1 type), three-phase single-phase automatic switching (JPS 31 type).

8. Switching delay: 1 ~ 999 seconds adjustable.

Outline dimensional drawing