High Voltage Static Var Compensator (SVC)

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Product Description:

 

Technical Features:

SVC (Static Var Compensator) is composed of by thyristor controlled reactor (TCR) and passive filter (FC). It is a compensator with parallel connection in the grid, and it quickly and automatically adjust the system reactive power according to the load working condition.

 

Application Scope:

Reactive compensation and harmonic filtering of electric power, petroleum, chemical industry, metallurgy, wind power, photovoltaic power generation, hoist, electric arc furnace, electric locomotive, steel rolling production line, high voltage power lines, etc.

 

Product Principle


Combining with the control concept of current international mainstream, the heating power supply adopts the digital design to make the machine run more efficiently.

The heating power supply adopts the N + 1 redundancy technology to ensure the entire sapphire production cycle. We adopt DSP digital control mode, making the output voltage accuracy to five over ten thousand, and it has analog peripheral interface, 485 communication interface, etc. Using IGBT as power device to improve working efficiency and conform to the current trend of saving energy and reducing consumption.


Technical Features

1. Control system: We adopt American TI company DSP processor, which is of high control accuracy and high reliability. It employs PI control technology with advanced hardware and software. If there occurs fluctuation in power grid voltage, it can automatically maintain the current output power constantly.

2. HMI: It displays parameters in real time such as output voltage, current and power, etc.. It works with function of data maintained when power fails and it is easy to inquire and maintain the record of failure time and fault type.

3. High efficiency and low pollution: We adopt the phase shifting full bridge soft switching (ZVS) control technology, to realize the IGBT open and shut off under zero voltage. It greatly reduce the IGBT switching loss, the noise pollution and electromagnetic interference of the power. The output voltage waveform is completely smooth, and it runs more safe and stable.

4. High reliability: We adopt the multi-unit structure of N + 1, and the multiple units work together in normal condition. Failure of one unit does not affect the present output power and it is more convenient to maintain normal operation of equipment.

5. Perfect protection: Overtemperature protection and output over-voltage or over-current protection, output short circuit and grounding protection, the limit protection of water flow and strike fire protection, etc.

6. Flexible interface: Input and output support simulation approaches such as switch, voltage and current signal, Modbus, MB + and Profibus etc. data communications control.


Main Technical Parameters

AC InputInput voltage380V ±10%
Input current300A
Working frequency50(60}Hz±5%
DC OutputOutput Voltage0~18V
Stable-voltage precision<0.5%o< span="">
Current0-12500A
Overload capacity1.1*ln
Main characteristicsWork modeCV Cl CP
Power factor 0.95
Voltage distortion rate≤5%
Current distortion rate≤12%
Type of coolingWater cooling
ProtectionInput phase-deficientInput A、B、C three- phase, lose phase cause stop
Output overvoltage、over currentOver threshold cause stop
flow rate protectionDelayed-stop if water flow is less than setting value
Working environmentWater flow rate≥35L/Min
Water temperature5〜30℃
Water pressure0.15~0.6Mpa
Pressure between inlet and outlet0.08~0.6Mpa
Environment temperature5~40℃
Ambient humidity0 〜85% No condensation
Altitude≤1200m
Dimension(WxHxD) Size800 x 2200 x 1750 mm
Weight1000Kg

 

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Q:Why do you need to use isolated power in industrial communications?
In addition, between high and low voltage in order to avoid high-voltage equipment on the low-voltage equipment interference, or high and low pressure need to be separated, will be used to isolate.
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From the power of the property terms, there is no difference. But from the functional point of view. Computer power can belong to industrial power. A wider range of industrial power supplies, the use of more power for industrial power. Generally believed that the power supply for industrial equipment, can be called industrial power. Also refers to those who are more powerful, more power supply.
Q:US Industrial Electricity Voltage
US industrial electricity as follows: US Voltage Standard (ANSI C84-la-1980): 1. The power supply system design should be carried out according to "range A". The voltage deviation range of "range B" should be rare, and it should take measures to achieve the requirement of "range A".
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Taiwan Mingwei Many domestic countries are imitation of it. Foreign switching power supply to do less, more than 75% of the world in the mainland.
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Q:Do you want to use the DC24V of the alarm system for the power cord of the bus-specific fire-fighting telephone?
2, when the current use of fire telephone module access, the module itself needs to provide DC24V power supply, power supply by the fire alarm controller output power bus. The fire telephone module, respectively, access to the power bus, telephone bus (fire phone controller output), and output two bus access to the phone jack and telephone extension.
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This is not the normal use of the. Can only say that you use the step-up isolation transformer 220V into a single-phase 380V power supply to the inverter, the inverter can only display, can not be normal with the motor

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