ASTJ LV automatic switching reactive power compensation complete set

Specifications

Low (LV) reactive power compensation and harmonic filtering solutions help users to improve the performance of installations through energy savings and better power quality, enabling end users to save money and reduce the environmental impact of their operations.

Aisiteoffers compensation equipment, a wide range of products and one-off solutions at low voltage levels. Specialists analyse the exact needs of the application and engineer the right solutions for optimal efficiency and economy.

Code and implication

Parameters

1. Rated working voltage: three-phase 380V, single-phase 220V;

2. Method of compensation: series, shunt, combination;

3. Wire connection:delta or star connection;

4. Capacitor placement methods: equal ratio, equal difference,equal capacity;

5. Switching quantity: 1--16 routes;

6. Rated power: 1-600kVAr.

Applications

The device uses AC dynamic contactless switch as the switching element. High performance microcomputer reactive power compensation controller is adopted to match with it. It can track the reactive power load on the line in time and compensate it promptly, so that the reactive power loss of the user is reduced to a very low level, which effectively improves the active power output of the transformer, optimizes the power supply quality, saves power consumption, and achieves the effect of energy saving and consumption reduction.

The device can display current, voltage, power factor, active power, reactive power and harmonics in time, with over voltage, negative voltage, open-phase protection function.

This device has the communication function, equipped with RS-485 communication interface, can meet the needs of automated management.

Especially suitable for frequent load change, three-phase load imbalance, harmonic and impact load fast tracking compensation, such as port, shipbuilding industry, automobile industry, rolling mills, special steel plants, etc.

The products are applied to the LV distribution networks in the fields of urban power grids, rural power grids, civil buildings, factories and mines, petrochemical, electrified railway and rail transportation, and have shown remarkable effects in providing reactive compensation, improving power factor, minimizing line losses, stabilizing grid voltage, and guaranteeing power quality, saving energy and reducing energy consumption.

Various occasions demanding reactive power, especially for irregular rapid changing, shocking, three-phase unbalanced load. Car manufacturing, metallurgy, port, wharf,petrochemical engineering, non-ferrous, power, mining, coal chemical industry, light industry, machinery manufacturing, public facilities, municipal engineering, rail transportation, etc.

Features

The reactive power dynamic compensation of switching capacitors with contactless AC switches is superior to the products widely used at present. It has no spark, no noise, no inrush current, no over-voltage, electrical appliances can be quickly switched, no pollution to the power grid, especially long service life, long time free maintenance;

The average dynamic response time RT is less than 10MS, the switching interval between capacitor banks is less than 20MS, and any group of capacitors can be re-work immediately without discharge after removal.

Protection: short circuit, overload, over-voltage, when the voltage reaches the over-voltage protection value, delay to stop working and exit all running capacitors;

Automatic operation function: power failure out, after power delay to resume automatic operation.

Performance Characteristics

Advanced adopting the latest international quality devices;

Flexible seamless reactive power regulation from inductive to capacitive;

High efficient single-phase and three-phase regulation.

Quick fast response speed. Dynamic response time (RT)≤10ms, switch interval ≤20ms;

Stable stabilizing system voltage, allowing the system to operate more stably;

Energy saving obvious energy saving effect, saving up to 4%～15%;

Protection over-voltage, under-voltage, output over-current protection;

Adopting intelligent oprating unit, friendly interface;

Display interface real-time displays power grid voltage, current,and waveform;

Any group of capacitors can be reapplied immediately after switching off without discharge.

Working environment:

Ambient Temperature: -25℃～+50℃；

Altitude: ≤ 2000 meters；

Relative Humidity: ≤95% at 25℃；

Installation environment: no inflammable, explosive, serious pollution, chemical corrosion and violent vibration place;

Installation conditions: the harmonic content in the power grid conforms to the provisions of 0.38kV clause in GB/14549 “Quality of electric energy supply Harmonics in public supply network”.