Basic Info.
Model NO.
DVR
Frequency Characteristics
Low Frequency
Usage
DVR
Frequency
Low Frequency
Size
Medium
Iron Core Shape
EI
Power Source
Linear Regulated Power Supply
Application Range
Industrial and Mining Enterprises
Brand
Modern
Tech
IGBT
Transport Package
Export Package
Trademark
OEM/ODM
Origin
China
HS Code
8504401990
Production Capacity
5000/Year
Product Description
Dynamic Voltage Regulator (DVR)
When the power line undergoes a voltage sag or surge, this may cause a critical security threat in power supplying for an enterprise. More seriously, it may cause significant property loss and personal loss. Use of a DVR alleviates such a threat or even avoids related loss.
A DVR is a cutting-edge power electronic device. It employs both advanced power electronic semiconductor technologies and control technologies to ensure safe use of electricity. To ensure stable power supplying to sensitive devices at the backend, our DVR uses world-leading control chips such as DSP/FPGA/CPLD to monitor line voltage quality. When a voltage sag or surge is detected, our DVR can instantly switch related backend devices to be powered by an inverter. The manipulation and shutdown of our DVR is controlled by software, and its typical switching cycle may be limited to no more than 1ms, making sure that the power supplied to the devices will not be interrupted. You can select supercapacitors or lithium batteries as backup power sources to meet your own requirements. The duration for backup power supplying depends on the capacity of those supercapacitors or batteries.
Product Features
DVR Model
DVR Technical Parameters
Note: For DVR products of other specifications, contact us for further information
Structure of DVR50 - 150kVA 
When the power line undergoes a voltage sag or surge, this may cause a critical security threat in power supplying for an enterprise. More seriously, it may cause significant property loss and personal loss. Use of a DVR alleviates such a threat or even avoids related loss.
A DVR is a cutting-edge power electronic device. It employs both advanced power electronic semiconductor technologies and control technologies to ensure safe use of electricity. To ensure stable power supplying to sensitive devices at the backend, our DVR uses world-leading control chips such as DSP/FPGA/CPLD to monitor line voltage quality. When a voltage sag or surge is detected, our DVR can instantly switch related backend devices to be powered by an inverter. The manipulation and shutdown of our DVR is controlled by software, and its typical switching cycle may be limited to no more than 1ms, making sure that the power supplied to the devices will not be interrupted. You can select supercapacitors or lithium batteries as backup power sources to meet your own requirements. The duration for backup power supplying depends on the capacity of those supercapacitors or batteries.
Product Features
- High reliability: Our cabinet applies an integrated design frame, which is highly environmentally adaptable, for it uses less components, and each of them has a powerful anti-shock function and long service life; it also provides a separate air way for cooling, where the air comes in from the bottom and out through the top, effectively preventing dusts from accumulating within the cabinet.
- Short response time: A global response time of less than 1ms ensures constant power supplying.
- Excellent charging capability: Our product supports charging energy storage units to their full capacities. Therefore, after a severe voltage sag occurs for the first time, it can rapidly charge the energy storage units that have been discharged. As a result, a problem that the voltage drops continuously in thunder and lightning weather can be effectively addresses.
- High utilization rate of energy storage units: A wider range of input DC voltages bring more convenience for you to optimize your initial investment.
- Ease of operation and maintenance: Use of supercapacitors contributes to a long service life and simplicity in maintenance; and our power control products employ a modular design.
- Intelligent management of energy storage units: We apply an intelligent system for super capacity management, and therefore, can detect in real time when a supercapacitor is working improperly.
DVR Working Principle
| Our DVR is connected in parallel within a power grid system. When the grid voltage is normal, an SCR on the power source side is connected, and the power grid can directly feed various devices. At the same time, a bi-directional inverter is in a standby state and monitors in real time how the grid voltage fluctuates. | |
| At the instant when an unexpected voltage fluctuation is detected, our DVR switches backend devices to be powered by a supercapacitor or other energy storage units. This ensures proper running of those backend devices will not be affected. | |
| When the grid voltage goes back to normal, and our DVR determines that the power supplied meets related standards, it switches the backend devices to be powered by the power grid, and simultaneously charges the backup energy storage units over the bi-directional inverter. |
DVR Model
DVR Technical Parameters
| Series | DVR50 -150kVA | DVR200 - 350kVA | DVR400 - 450kVA | DVR500kVA or above |
| System Parameters | ||||
| Rated voltage | 208V, 220V, 380V, 400V, 415V, 460V, 480V | |||
| Rated capacity | 50kVA, 75kVA, 100kVA, 150kVA | 200kVA, 250kVA, 300kVA, 350kVA | 400kVA, 450kVA | 500kVA or above |
| Rated frequency | 50Hz/60Hz, ±5Hz | |||
| Voltage range | -40% - +20% (You can set this value) | |||
| DC voltage | 180 - 750Vdc (The minimum value can be adjusted as needed.) | |||
| Pieces to be integrated | 8 | |||
| Global efficiency | ≥99% | |||
| Wiring mode | 3-phase 3-wire; 3-phase 4-wire | |||
| Connection mode | Connect lines from both the top and the bottom | |||
| Air in/out | Air in from the bottom and out through the top | |||
| Performance Indicators | ||||
| Overall response time | <1ms | |||
| Voltage precision | 1% | |||
| Sag compensation capability | 100%; compensation cycle 3s; for a longer cycle, add a supercapacitor as needed. | |||
| Overload capability | Overload 125%, lasts at least 10min; Overload 150%, lasts at least 1min | |||
| Cooling mode | Air-cooled | |||
| Noise | <68dB | |||
| Fixing mode | Cabinet | |||
| Dimensions (W*D*H mm) | 600*1000*2000 | Power cabinet: 600*1000*2000 Super-capacity cabinet: 600*1000*2000 | Power cabinet: 600*1000*2000 Super-capacity cabinet: 800*1000*2000 | For a capacity of 500kVA or above, you can adjust as needed. |
| Environment Parameters | ||||
| Altitude | ≤2000m, 2000m - 4000m (De-rating) | |||
| Operating temperature | -10ºC - 40ºC | |||
| Relative humidity | 5% - 95%, non-condensing | |||
Note: For DVR products of other specifications, contact us for further information
Structure of DVR50 - 150kVA
