GY-ASVG-IU Rack-mount Advanced Static Var Generator
GY-ASVG-IU Rack-mount Advanced Static Var Generator is a compact power quality management solution designed for industrial and commercial power systems. Featuring a 1U rack-mount structure, three-level topology and full-digital control technology, it provides fast and accurate reactive power compensation, harmonic mitigation and three-phase unbalance correction.
Its space-saving design allows easy installation in standard cabinets and supports multiple units connected in parallel for flexible capacity expansion. With ultra-fast response, high compensation accuracy and reliable operation, GY-ASVG-IU improves power factor, reduces harmonic distortion and enhances electrical power quality for data centers, industrial automation systems, manufacturing facilities and other critical power applications.
•1U Space-Saving Rack Design — Compact 1U rack-mount structure with only 44.5mm height, optimized for high-density electrical cabinets, data centers and space-limited power quality applications.
•Flexible Modular Expansion — Supports multiple units connected in parallel, enabling scalable compensation capacity and flexible system configuration according to different power requirements.
•Integrated Power Quality Improvement — Provides comprehensive compensation for reactive power, current harmonics and three-phase unbalance, achieving reactive compensation accuracy ≥99%, harmonic compensation rate ≥95% and unbalance correction ≤5%.
•Intelligent Digital Control Technology — Equipped with DSP+CPLD full-digital control and three-level topology, delivering precise power management with reactive response time <10ms and harmonic response time <40ms.
•High Efficiency & Quiet Operation — Designed for reliable long-term operation with efficiency ≥97% and operating noise ≤60dB, suitable for environments requiring stable and low-noise performance.
•Multiple Voltage & Grid Compatibility — Available in AC220V (3kvar) and AC380V (5kvar) configurations, supporting both three-phase three-wire and three-phase four-wire power systems.
Product Features
Overview
Enhanced Static Var Generator (GY-ASVG-1U)
The device features a 1U thickness design and connects a voltage source converter (VSC) to the power grid via a filter in parallel. Its working principle is to detect the load current in real time and, based on advanced detection and control algorithms for reactive power, harmonics, and three-phase active power, generate corresponding IGBT drive signals to achieve comprehensive compensation of reactive current, harmonic current, and three-phase unbalanced active power.
Performance characteristics
1.DSP+CPLD full-digital control core, three-level topology technology, advanced harmonic detection algorithm and PWM control strategy.
2.Low noise design, noise level <60dB.
3.Modular design with multi-module parallel connection; small footprint, easy maintenance.
4.Supports any one, any two, or all three of reactive power compensation, harmonic compensation, and three-phase unbalance compensation as selectable options.
5.Reactive power compensation capability: ≥99%.
6.Unbalance compensation capability: unbalance degree after compensation ≤5%.
7.Current harmonic compensation capability: compensation rate ≥95%; 2nd to 50th harmonics, individual compensation rate adjustable.
8.Supports 100% current-limiting output to ensure long-term stable operation of the equipment.
Technical Parameter
| Model | 220V | 380V |
| Altitude | <2000m; above 2000 m, derate according to GB/T 3859.2 | |
| Ambient temperature | -10 ~ +50℃ (above 40 ℃, capacity derating ≤30%) | |
| Relative humidity | ≤90% relative humidity, no condensation on the surface at a monthly minimum temperature of 25 ℃ | |
| Pollution degree | Pollution degree ≤ Class III | |
| Operating voltage | AC220V (-20%~+20%) | AC380V (-20%~+20%) |
| Operating frequency | 50Hz/60Hz (45Hz~63Hz) | |
| Rated compensation capacity | 2Kvar, 3Kvar, 5Kvar | 3Kvar, 5Kvar, 10Kvar |
| Grid configuration | Three‑phase three‑wire, Three‑phase four‑wire | Three‑phase four‑wire |
| Load current range | 0~100A | |
| Number of parallel units | 2kvar (no parallel), 3kvar, 5kvar (parallel allowed) | 3kvar (no parallel), 5kvar, 10kvar (parallel allowed) |
| Overall efficiency | ≥97% | |
| Switching frequency | 30kHz (2kvar)、16kHz (3kvar, 5kvar) 30kHz (3kvar)、16kHz (5kvar, 10kvar) | |
| Function selection | A、B、A+B、B+A、B+C、A+C、B+C+A、A+C+B | |
| Reactive compensation rate | Reactive power compensation ≥99% | |
| Unbalance compensation capability | Unbalance degree after compensation ≤5% | |
| Current harmonic compensation capability | Current harmonic compensation ≥95% | |
| Neutral line filtering capability | Neutral line filtering capacity is 1.5 times that of phase filtering capacity | |
| Full response time | Reactive power <10ms, Harmonics <40ms | |
| Cooling mode | Forced air cooling | |
| Noise level | 2kvar≤38dB / 3kvar≤40dB / 5kvar≤45dB | 3kvar≤38dB / 5kvar≤40dB / 10kvar≤45dB |
| Communication method | 2 RS485 communication interfaces (Wi‑Fi supported) | |
| Protection functions | Overload, software/hardware overcurrent, grid over‑undervoltage, grid voltage unbalance, power supply failure, overtemperature, frequency anomaly, short‑circuit protection, resonance protection, etc. | |
| Overload capability | Rated overload 1.2 times for 60 seconds | |
| Installation method | Rack‑mount / Wall‑mount | |
| Cable entry | Rack‑mount: rear cable entry; Wall‑mount: top cable entry | |
| Protection rating | IP20 (IP54 available on request / customizable) | |
| Size (W*D*H) | 390*525*90.2mm | |
A:Reactive compensation B:Harmonic compensation
C:Three-phase unbalance compensation
User Manual
Frequently Asked Questions About GY-ASVG-IU Rack-mount Advanced Static Var Generator
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