A Saftey "One-stop" General Compensation Technique
DPS-H separate compensation
- No harmonic is generated, no harmonic is amplified and the odd harmonic orders lower than 13th can be filtered.
Stepless adjustment
- DPS-H can realize dynamic stepless adjustment without over compensation and short-compensation
Modularized product design
- DPS-H adopts modular product design
and cabinet installation. - It features convenient engineering design
and installation
Power factor, Three-phase unbalanced and Loworder harmonic synchronization control
- Mainly compensate power factor and threephase unbalance
- Support low-order (3, 5, 7, 9, 11 orders) small capacity (50% rated power) harmonic compensation
Resonance avoidance
- DPS-H is a current source device which avoids resonance phenomena in mechanism
Multiple compensation applications
- DPS-H separate compensation
- DPS-H separate compensation
DPF-H Technical specifications
| Shany-tech DPS-H 30/50/100Kvar | Item | |
| 380V(-40% ～ +20% 228V ～ 456V | Voltage of rated AC input line | System parameters |
| Mains frequency | Mains frequency | |
| Unlimited | Parallel operation | |
| 150/5 ～ 10,000/5 | CT setting | |
| 3P3W, 3P4W | Network configuration | |
| ≥97% | Eficiency | |
| Power losses | Power losses | |
| 3-level | Topology design | Characteristics |
| 30/50/100Kvar | Rated compensation capacity | |
| ＜ 15ms | Response time | |
| -1 to 1, capacitive to inductive continuously adjustable | Operation range | |
| Smart air cooling | Cooling air requirement | |
| <65db | Noise level | |
| RS485 CAN | Communication interface | Communication capacity |
| Modbus RTU | Communication protocol | |
| Yes | Alarm events | |
| LCD monitor/HMI centralized monitor (optional) | Monitoring | |
| Wall / Rack/Cabinet | Mounting type | Physical aspects |
| Back (for module); Top or bottom(for cabinet) | Cable entry | |
| same size as DPS | Dimensions | |
| 21KG 30Kavar, 35KG 50Kvar, 100Kvar 48KG | Weight | |
| RAL7035 | Color | |
| 1,500m/derating up to 4,000m, 1% / 100m | Altitude | Environmental conditions |
| -10～ 40(°C) | Ambient temperature | |
| 5%~95%, non-condensing | Relative humidity | |
| IP20 | Protection class |
DPS-H mode definition
DPS-H function comparison
| Advanced Var Generator (DPS-H) | Var Generator | General dynamic reactive power compensation (SVC) | Item | Category |
| Available | Available | Special design | Harmonic control | Harmonic control function |
| 3, 5, 7, 9, 11 (orders) | Single order, normally 3rd order | Compensation range | ||
| Dynamic real-time compensation, stable and reliable | Dynamic real-time compensation, stable and reliable | Common easily influenced by system fluctuation | Reliability | Reactive compensation function |
| -1~1 | -1~1 | Normally 0.6~1 | Compensation range | |
| Available | Available | Special Design | Phase by Phase Compensation | Imbalance compensation function |
| Available | Available | Unavailable | Imbalance compensation |
|
| Available | Available | Unavailable | Active imbalance compensation |
|
| Dynamic real-time compensation, increase a harmonic compensation function lower than 13th order | Dynamic real-time compensation | Compensation capacity cannot be adjusted continuously, which makes it difficult to reach complete equilibrium with reactive system, and easy leading to over compersation and short-compersation | Compensation mode | Key feature |
| ＜ 5ms | ＜ 5ms | ＞ 10ms | Response time | |
| The compensation capacity of DPS installed capacity. | The compensation capacity of SVG is installed capacity. | The installed capacity of traditional compensation device is usually more than actual capacity | Capacity characteristic | |
| The DPS floor space is always 50% of other reactive compensation type which has same capacity, even smaller. | The SVG floor space is always 50% of other reactive compensation type which has same capacity, even smaller. | Large | Space |
Operating principle
DPS-H Advanced Generator conducts real-time monitoring to load current through external Current Transformer (CT) and detects reactive components and harmonic from load current through the calculation of internal DSP, then transmits PWM signal to internal IGBT. Conforming reactive current and low-order harmonic Acurrent are generated by inverter with control settings to achieve reactive compensation and control harmonic.
DPS-H operating principle diagram
DPS-H compensate non-linear capacitive loads
SHANY-TECH DPS-H compensate non-linear inductive loads
