Dynamic Voltage Regulators Triple Phase 400V 50/60Hz 30KVA Air-cooled Automation AC Voltage Restorer

Short Description:

Dynamic voltage restorer is a compensation device with energy storage device (system), its main function is to effectively prevent the impact of transient power quality problems (voltage sag, voltage surge, short-term interruption of power supply, etc.) on the load, suitable for protecting the normal operation of the whole production line, and can be connected in series between the system power supply line and the load (note: the power loop is connected in parallel to the front end of the load).
DVR device combines power electronics technology with advanced supercapacitor energy storage technology, when the system has voltage sag, sudden rise and short-term interruption, DVR device can use the power stored in the supercapacitor to provide the load through the inverter and transformer circuit, so that the user’s critical load can maintain normal power supply during the abnormal time of grid voltage and protect the normal operation of the load.

Send email to us

Product Detail

Product Tags

Features

DVR device is connected in series between the power supply and the protected load, it will continuously monitor the input side power supply voltage, once the supply voltage is found to deviate from the rated voltage level (±15%), the DVR device will provide the normal power supply voltage for the load through the IGBT inverter system, ensure the output side (i.e. load side) voltage stability, and ensure that the protected load is not affected by voltage changes.

1. Efficient operation and fast response
Low energy consumption and more than 99.5% operating efficiency. The response time is fast, and the full response time is less than 2ms.
2. Long life and maintenance-free
Long life, design life of more than 20 years.
Maintenance-free, simple topology, extremely low failure rate, no vulnerable components.
3. High reliability, multi-redundancy design
Strong reliability, AC and DC power supply of control power supply, Multi-redundancy backup design, multi-redundancy backup of bypass drive control circuit.
4. Strong overload capacity
Strong overload capacity, hundreds of kiloamperes impact resistanc.e
5. Green operation, no harmonic pollution
Green and environmentally friendly, it will not cause harmonic pollution to the power grid, and the operation is simple.

Grid Voltage is Normal – Standby Mode
1. When the grid voltage is normal, the load is supplied directly from the grid.
2. The DVR is in standby mode, the thyristor electronic switch is turned on, cutting off the IGBT power module, but the grid status is monitored in real time, and it is in bypass standby to act immediately when the grid voltage fluctuates.
3. The loss of the complete system is only the DVR device control power supply, switching on-state loss, capacitor floating charge loss, etc.
4. Operation characteristics: efficient operation, real-time monitoring

Grid Voltage Anomalies – Compensation Mode

1. When there is a voltage sag, swell, or a short interruption, the DVR starts supplying power to the load.
2. The DVR is in compensation mode, which quickly cuts off the thyristor electronic switch and starts the IGBT power module at the same time.
3. The load is isolated from the grid.
4. Through the IGBT power module, the energy in the energy storage capacitor cabinet is inverted into a standard sine wave of the same amplitude and phase as before the drop to supply the user.
5. Operational features: fast response, isolated output

Grid Voltage Returns to Stability – Recovery Mode
1. When the DVR detects that the grid voltage returns to normal in the compensation mode, the voltage waveform output by the DVR is synchronized with the grid waveform, and when the synchronization between the two is completed, the thyristor electronic switch is turned on, and then the IGBT power module output is turned off. Power is supplied directly to the load from the grid again.
2. After the recovery mode is completed, the DVR automatically switches to standby mode and at the same time replenishes the lost energy for the energy storage capacitor cabinet.
3. Operation features:flexible exit, seamless switching

Troubleshooting Mode
1. When the DVR equipment fails or is scheduled to be overhauled, the DVR device will switch to the bypass switch, and the load will be powered through the bypass loop, and the manufacturer can choose to disconnect the input and output switch for equipment maintenance, and after the maintenance is completed, close the input and output switch, disconnect the bypass switch, and the equipment will automatically resume operation.
2. Running features:fast bypass,automatic recovery

Specification

Network voltage(V)	400V(208V-750V)
Compensates for the operating voltage	Low voltage compensation range:0--85% rated voltageHigh voltage compensation range:115%--130% rated voltage
Capacity(kVA)	15--30	50--100	150--200	250--400	500--600	800--1250	1500--2000	2500	3150
Compensation time	3s	3s	3s	3s	3s	3s	3s	3s	3s
Dimension(mm)	8007001200	10008001800	12008002100	18008002100	260010002100	360010002100	680010002100	820010002200	980010502200
Network frequency(Hz)	48.5--51.5hZ
Response time	＜2ms
Compensate for voltage imbalance	＜3%
Voltage compensation accuracy	＜1%
Overall efficiency	＞99.5%
Total harmonic distortion of voltage	＜4%
Temperature	Operating temperature: -45℃--55℃, derating usage above 55℃
Temperature	Storage temperature: -45℃--70℃
Humidity	5%--95%RH, non-condensing
Noise	60dB ≤ uncompensated, charging (measured at 1 meter from the device)
Life span	20 years

Application

Power supply quality problems have a significant impact on chip manufacturing, automobiles, pharmaceuticals, petrochemicals, hospitals, power plants, food processing, chemical fibers, glass, data centers, tobacco and other industries characterized by continuous operation, and DVRs are widely used in
these industries.
Protection Load Type：
Semiconductor industry
Chip fabrication (vacuum pumps, lithography, RFI equipment), testing and packaging (requires a stable voltage to ensure test reliability), flat panel display (liquid crystal or plasma), polysilicon (wafer cutting line damage and polishing)
Automotive industry
Welding process, painting process, painting process, pressure drop
Food & Beverage Industry
High-speed bottling, packaging lines, dairy processing
Manufacturing
Machining centers, CNC machine tools, fiber generation lines, film generation lines, extrusion processes
Hospital
MRI scanners, etc. (to extend their service life)
Power plant
A class of auxiliary machines, such as coal feeder and powder feeder
Petrifaction
Sensitive equipment and assembly lines

Customer service

1. ODM/OEM service is offered.

2. Quick order confirmation.

3. Fast delivery time.

4. Convenient payment term.

At present, the company is vigorously expanding overseas markets and global layout. We are committed to becoming one of the top ten export enterprises in China’s electrical automatic product, serving the world with high-quality products and achieving a win-win situation with more customers.