KLD-DVR Series
Dynamic Voltage Regulation Real-time Control Equipment
KLD-DVR Series Dynamic Voltage Regulation Real-time Control Equipment
It’s an off-line short duration energy compensation solution. When voltage dips and other issues occur, it can quickly support the load without power outage during switching to ensure the integrity of the supply voltage.
With the rapid development of the modern electric power industry and the transformation in the structure of electricity loads in the system, social production and precision manufacturing are growingly dependent on electronic equipment. Voltage dips have become a major problem for users.
According to the data of EPRI, more than 92% of power quality events are voltage dips and swells, while other power quality events only account for less than 8%. Voltage dips have been identified as the most prevalent event in power systems by a number of international research organizations. Therefore, it is vital to protect the sensitive equipment from voltage dips (swells). KLD-DVR series dynamic voltage regulation real-time control equipment provides the solution of voltage dips (swells) equipment, which can quickly correct the voltage in real time and solve the problem of voltage dips, swells and interruptions in the power supply of social production or precision manufacturing, ensuring that the loads continue to operate and the power supply will not be interrupted.
The definition of voltage dips is specified in IEEE standard and national standards "Power quality—Voltage dips and short interruptions": a phenomenon that the effective power frequency voltage of a point in the power system is temporarily reduced to 10% ~ 90% of the rated voltage, and lasts for 10ms ~ 1min, during which the system frequency remains the nominal value and then returns to normal level.
KLD-DVR is in grid power supply mode, where the grid supplies power directly to the load through the equipment, while the KLD-DVR converter obtains energy from the output side to charge the supercapacitor.
KLD-DVR is in inverter power supply mode, where the energy from the supercapacitor is converted by the KLD-DVR converter into a standard voltage source to power the load.
KLD-DVR is in inverter power supply mode, where the energy from the supercapacitor is converted by the KLD-DVR converter into a standard voltage source to power the load.
KLD-DVR series can provide fast and accurate protection for the user's important equipment, preventing voltage dips and swells from causing equipment shutdown and economic losses. Even if the voltage drops to zero, the equipment can still output 100% of the rated voltage to support the normal operation. The typical response time is less than 2ms.
| Input | |
| Rated AC input voltage | 208V-480V(other voltage levels can be customized) |
| Input Voltage range | -15%~+15% |
| Grid frequency range | 50Hz/60Hz±5Hz |
| Wiring mode | Three-phase three-wire/three-phase four-wire |
| Multiple pcs in parallel | Support multi-module parallel connection |
| Operating efficiency | ＞99% |
| Output | |
| Compensation capability | 0-100% for standard model, 100% for remaining models |
| OutputFrequency | 50±0.01Hz or 60±0.01Hz |
| Voltage harmonic | ≤3% |
| Voltage imbalance (negative sequence/ positive sequence) | ＜3% for 100% unbalanced loads |
| Overload capacity | 200% |
| Performance indicators | |
| Fast response time | ＜10us |
| Full response time | ＜2ms |
| Noise | ≤60db(100% load) |
| Heat dissipation mode | Intelligent air cooling |
| Protection functions | Short-circuit protection, DC busbar undervoltage/overvoltage protection, power semiconductor fault protection, overload protection, etc. |
| Application environment | |
| Ambient temperature | -10℃~+50℃ |
| EnvironmentHumidity | Maximum 95%RH (no condensing) |
| Storage temperature | -25℃~55℃ |
| Altitude | ＜1500 meters, for every 100m increase above 1500 meters, the power is reduced by 1% |
| Protection degree | IP20 (higher can be customized) |
| Common model | Capacity(KVA) | System voltage(V) | type | Protection degree |
| KLD-DVR100-3L-400V | 100 | 400 | Standard type | NEMA1(IP20) |
| KLD-DVR300-3L-400V | 300 | 400 | Standard type | NEMA1(IP20) |
| KLD-DVR600-3L-400V | 600 | 400 | Standard type | NEMA1(IP20) |
| KLD-DVR900-3L-400V | 900 | 400 | Standard type | NEMA1(IP20) |
| KLD-DVR1200-3L-400V | 1200 | 400 | Standard type | NEMA1(IP20) |
| KLD-DVR1500-3L-400V | 1500 | 400 | Standard type | NEMA1(IP20) |
| KLD-DVR100-4L-400V | 100 | 400 | Standard type | NEMA1(IP20) |
| KLD-DVR300-4L-400V | 300 | 400 | Standard type | NEMA1(IP20) |
| KLD-DVR600-4L-400V | 600 | 400 | Standard type | NEMA1(IP20) |
| KLD-DVR900-4L-400V | 900 | 400 | Standard type | NEMA1(IP20) |
| KLD-DVR1200-4L-400V | 1200 | 400 | Standard type | NEMA1(IP20) |
| KLD-DVR1500-4L-400V | 1500 | 400 | Standard type | NEMA1(IP20) |
Input
Rated AC input voltage：208V-480V(other voltage levels can be customized)
Input Voltage range：-15%~+15%
Grid frequency range：50Hz/60Hz±5Hz
Wiring mode：Three-phase three-wire/Three-phase four-wire
Multiple pcs in parallel：Support multi-module parallel connection
Operating efficiency：＞99%
Output
Compensation capability：0-100% for standard model, 100% for remaining models
OutputFrequency：50±0.01Hz or 60±0.01Hz
Voltage harmonic：≤3%
Voltage imbalance (negative sequence/ positive sequence) ：＜3% for 100% unbalanced loads
Overload capacity：200%
Performance indicators
Fast response time： ＜10us
Full response time： ＜2ms
Noise： ≤60db(100% load)
Heat dissipation mode： Intelligent air cooling
Protection functions： Short-circuit protection, DC busbar undervoltage/overvoltage protection, power semiconductor fault protection, overload protection, etc.
Application environment
Ambient temperature： -10℃~+50℃
EnvironmentHumidity： Maximum 95%RH (no condensing)
Storage temperature： -25℃~55℃
Altitude： ＜1500 meters, for every 100m increase above 1500 meters, the power is reduced by 1%
Protection degree： IP20 (higher can be customized)
KLD-DVR100-3L-400V
Capacity(KVA)：100
System voltage(V)）：400
Type：Standard type
Protection degree：NEMA1(IP20)
KLD-DVR300-3L-400V
Capacity(KVA)：300
System voltage(V)）：400
Type：Standard type
Protection degree：NEMA1(IP20)
KLD-DVR600-3L-400V
Capacity(KVA)：600
System voltage(V)）：400
Type：Standard type
Protection degree：NEMA1(IP20)
KLD-DVR900-3L-400V
Capacity(KVA)：900
System voltage(V)）：400
Type：Standard type
Protection degree：NEMA1(IP20)
KLD-DVR1200-3L-400V
Capacity(KVA)：1200
System voltage(V)）：400
Type：Standard type
Protection degree：NEMA1(IP20)
KLD-DVR1500-3L-400V
Capacity(KVA)：1500
System voltage(V)）：400
Type：Standard type
Protection degree：NEMA1(IP20)
KLD-DVR100-4L-400V
Capacity(KVA)：100
System voltage(V)）：400
Type：Standard type
Protection degree：NEMA1(IP20)
KLD-DVR300-4L-400V
Capacity(KVA)：300
System voltage(V)）：400
Type：Standard type
Protection degree：NEMA1(IP20)
KLD-DVR600-4L-400V
Capacity(KVA)：600
System voltage(V)）：400
Type：Standard type
Protection degree：NEMA1(IP20)
KLD-DVR900-4L-400V
Capacity(KVA)：900
System voltage(V)）：400
Type：Standard type
Protection degree：NEMA1(IP20)
KLD-DVR1200-4L-400V
Capacity(KVA)：1200
System voltage(V)）：400
Type：Standard type
Protection degree：NEMA1(IP20)
KLD-DVR1500-4L-400V
Capacity(KVA)：1500
System voltage(V)）：400
Type：Standard type
Protection degree：NEMA1(IP20)