GY-ASVG-LN Low-noise Advanced Static Var Generator
GY-ASVG-LN Low-noise Advanced Static Var Generator is a specialized power quality management solution designed for noise-sensitive industrial and commercial applications. Featuring three-level topology and full-digital control technology, it provides fast and accurate reactive power compensation, harmonic mitigation and three-phase unbalance correction.
With ultra-low operating noise ≤45dB, built-in grid-side sampling CT and modular parallel expansion capability, GY-ASVG-LN delivers compact installation, convenient maintenance and reliable performance. It effectively improves power factor, reduces harmonic interference and enhances grid stability for environments requiring both high power quality and low operating noise.
•Ultra-Quiet Operation Design — Specially optimized for noise-sensitive environments, GY-ASVG-LN maintains operating noise at ≤45dB, providing reliable power quality improvement while minimizing acoustic disturbance.
•Integrated Grid-Side Current Detection — Built-in grid-side sampling CT simplifies system wiring, reduces installation complexity and improves maintenance convenience for different application scenarios.
•Complete Power Quality Management — Combines reactive power compensation, harmonic mitigation and three-phase unbalance correction in one compact solution, achieving reactive compensation accuracy ≥99%, harmonic filtering efficiency ≥95% for 2nd to 50th harmonics, and unbalance correction ≤5%.
•Compact Modular Architecture — Designed with a slim and space-efficient structure, the unit supports multiple modules connected in parallel for flexible capacity expansion, helping users optimize installation space and system configuration.
•Advanced Digital Control Technology — Equipped with DSP+CPLD full-digital control technology and three-level topology, GY-ASVG-LN provides precise dynamic compensation with reactive response time <10ms and harmonic response time <40ms.
Product Features
Overview
Low-Noise Enhanced Static Var Generator (GY-ASVG-LN)
The device adopts a low-noise 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. The device noise level is within 45dB. It also supports a built-in grid-side sampling CT (current transformer), offering easy installation and maintenance.
Performance characteristics
1)DSP+CPLD full-digital control core, three-level topology technology.
2)Low noise design with noise level ≤45 dB; also supports built-in grid-side sampling CT, easy installation and maintenance.
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: compensation rate ≥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-LN Low-noise Advanced Static Var Generator
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