中文版
HZS-SVR line automatic voltage regulator
Product description
With the automatic line voltage regulator, it will be is possible to change the ratio of transformation of the transformer according to the condition of the line voltage through automatically adjusting the gear position of the on-load tap changer, thereby ensuring that the output voltage can remain stable in a certain range. It can be widely used in the power supply line which has a long distance for power supply and a large load of power supply as well as a large fluctuations in the voltage, and its electric energy quality can not be up tor the standard for use. It also can be used for factories and ore enterprises where the voltage quality can not meet the production requirements.
Product model
Composition mechanism and working principle
The SVR line automatic voltage regulator consists of three parts: the self coupling transformer, the on-load tap changer and the automatic controller. The whole coil of the self coupling transformer is divided into three parts: the series excitation coil, the shunt coil and the control coil. Among them, the series excitation coil is a winding with multiple taps, which are connected in series between the input and output through the different contacts of the on-load tap changer; these taps change the ratio of transformation of the transformer and achieve the purpose of adjusting the voltage; the shunt coil is the common winding of the self coupling transformer which generates the magnetic field that transmits energy; and the control coil provides the working power supply and the sampling signal for the controller.
The on-load tap changer is a switch that can switch the contacts under the loaded state. In the automatic voltage regulator, the taps of the series winding are connected to the different contacts of the on-load tap change; the output voltage of the transformer can be changed by changing the contact points to adjust the ratio of transformation of the transformer. The automatic controller is the core part of the whole device. It is mainly composed of the control chip of the single chip microcomputer, the display circuit, the keystroke circuit, the voltage sampling, the current sampling, the state input, communication port, the control output circuit, the data storage and other circuits. The computer technology, the electronic technology and the military level control chip are adopted. So the equipment has a high reliability and a strong anti interference ability, which enable it to be adaptive to the outdoor harsh environment.
Primary schematic diagram
The action of the on-load tap changer is activated by measuring the real-time voltage of the line, and the ratio of transformation of the self coupling transformer can be changed, In this way, the line voltage can remain stable between the upper limit set for the voltage and the lower limit set for the voltage. If the measured real-time voltage of the line is less than the lower limit set for the voltage, the controller will control the on-load voltage-regulating switch to upshift increase the voltage; otherwise, the measured line real-time voltage is greater than the upper limit set for the voltage, the controller will control the on-load voltage-regulating switch to downshift and lower the voltage.
Product features
● The equipment adopts the self-coupling transformer structure, which has the characteristics such as the loss is low and the efficiency is high;
● The range of voltage adjustment is broad, the voltage regulating effect is obvious, and the precision of voltage regulation is high;
● The device can automatically tracks any changes in the line voltage, adjust gear position of the tap changer, realizes the automatic on-load voltage regulation of the voltage regulator;
● The device can display the real-time voltage and current, the current gear position, the total activation times, the daily activation times, the set parameters, and it will be possible to modify the set parameters at the output line output.
● The controller has excellent control performance and communication function, realizes the functions of the remote metering, the remote signaling, the remote regulating and the remote controlling;
● The controller adopts the unique anti interference measures to ensure the normal operation of the controller;
● The controller has the maximum gear position protection and the minimum gear position protection, which can prevent against any fault operations in various modes and prevent the tap switch from being stuck,
● The controller is provided with the under-voltage protection, the over-current protection and a daily operation time limit protection;
● The equipment has the RS232 communication interface,so monitoring at an intervals of 30-50m can be realized through the short distance wireless module, and theremote communication through can be implemented through GPRS;
● The oil tank of the on-load tap switch and the oil tank on the self coupling transformer frame are isolated;
● The controller has a small volume and a large capacity. It is light in weight and is easy to install;
● The controller has a significant energy saving effect;
● The controller has a high cost performance as well as a high reliability.
Table of man parameters
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Description |
Specifications |
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Voltage level |
6kV |
10kV |
35kV |
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Rated capacity |
500-5000KVA |
315kVA~12500kVA |
500-24000KVA |
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The number of phases |
Three phases |
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Rated frequency |
50Hz |
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Wiring mode |
YaO (three-phase three-wire star connection) |
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Cooling mode |
ONAN (Oil natural and air natural) |
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Shunt series |
7 or 9 gear positions |
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Mechanical service life |
More than 500000 times |
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Electrical service life |
More than 50000 times; |
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Voltage regulating range |
(-10% ~ +10%), (-5% ~ +15%),(0 ~ +20%), (0 ~ +30%) optional |
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Protection function |
Protections for overcurrent, undervoltage, daily activation times, high and low limit, etc. |
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Display function; |
It is a real-time display of the voltage and current in the line, the gear position, the daily activation times, the total activation times; |
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Mode of communication |
With standard RS485 or RS232 communication interface, can realize GPRS remote monitoring and wireless monitoring; |
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Shape and dimensions
The content shown shall be for reference only
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Capacity (kVA) |
External dimensions |
Track gauge D(mm) |
Total weight (kq) |
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315 |
1595 x 790 x 1075 |
660 x 660 |
780kg |
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500 |
1665 x 850 x 1180 |
660 x 660 |
970kg |
|
1000 |
1790 x 920 x 1270 |
660 x 660 |
1450kg |
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2000 |
2040 x 1010 x 1400 |
660 x 660 |
2215kg |
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3000 |
2310 x 1300 x 1950 |
820 x 820 |
2650kg |
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4000 |
2500 x 1170 x 2120 |
820 x 820 |
3230kg |
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5000 |
28000 x 1280 x 2160 |
820 x 820 |
4380kg |
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6300 |
3040 x 1906 x 2436 |
1070 x 1070 |
6280kg |
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8000 |
3300 x 2500 x 2200 |
1070 x 1070 |
6230kg |
Installation mode
The installation mode shall be installed outdoors, and there are two ways of installation.
In case that the voltage regulator has a capacity which is less than or equal to 2000kVA, the equipment can be installed with in the form of double rods by means of the mounting bracket; in case that the the voltage regulator has a capacity which is more than 2000kVA, the installation foundation shall be necessary for installation. The installation diagram is shown in the following figure:
Product Consultation
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Feidong Economic Development Zone LiuZi Road, Anhui Hefei，China
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