Name: GY-AVC-PLUS Unified Power Quality Control Device - GEYA Electrical Equipment Supply
SKU: GY-AVC-PLUS

Description

GY-AVC-PLUS Unified Power Quality Control Device Overview

The GY-AVC-PLUS is a Unified Power Quality Control Device mainly consisting of a rectifier, inverter, compensating transformer, monitoring system and AC/DC distribution, supporting AC220V and AC380V grids with rated capacity from 30kVA to 500kVA. This comprehensive power quality control device integrates voltage sag (-40%) control, voltage swell (+30%) control, reactive power compensation, harmonic compensation and three-phase unbalance compensation, improving grid power quality while ensuring stable power supply to the load and avoiding economic losses caused by voltage fluctuations for production users.

Working Principle

The device combines a rectifier and inverter with a series compensating transformer under real-time monitoring. When the grid voltage deviates, it regulates the compensation voltage to correct sag and swell conditions, while the power electronic stage provides reactive, harmonic and three-phase unbalance compensation. When equipment fails, it can seamlessly switch to the power grid so that the load power supply does not flash off.

Key Features

Stepless Regulation — new power electronics technology, high accuracy, wide range, no flicker during regulation.
Modular Design — small footprint and easy to maintain.
Phase-Separate Control — adjustable compensation voltage and speed, adapting to severely unbalanced loads.
Multi-Function — reactive, harmonic, three-phase unbalance and precise voltage adjustment.
Seamless Switching — switches to the grid on fault to keep load supply uninterrupted.
Communication — RS485 interfaces (4G/Wi-Fi supported) for connection to a monitoring system.

Protection

Integrated protection covers overload, software/hardware overcurrent, grid overvoltage/undervoltage, overtemperature, phase loss, frequency anomaly and short circuit protection, improving the reliability of power supply.

Installation

Cabinet-type installation with forced air cooling. Protection rating is IP20 (IP54 customizable), noise level ≤70dB, and grid structure supports L/N+PE (single-phase) or three-phase four-wire + PE.

Applications

Suitable for industrial and commercial power systems requiring comprehensive power quality governance, particularly production sites sensitive to voltage sag/swell, harmonics and three-phase load unbalance.

Technical Parameters

AC Parameters

Parameter	Single-Phase (220V)	Three-Phase (380V)
Rated Power	30kVA	30kVA~500kVA
Rated Current	135A	45A~750A
Rated Voltage	AC220V	AC380V
Voltage Range	-40%~+30%
Rated Frequency	50Hz/60Hz
Grid Structure	L/N+PE	Three-phase four-wire +PE
AC Overload Capability	1.1 times the duration
Output Voltage Accuracy	±1%
Function Selection	Voltage compensation + (reactive power compensation, harmonic compensation, reactive + harmonic compensation)	Voltage compensation + (reactive, harmonic, three-phase unbalance, reactive + harmonic, reactive + unbalance, reactive + unbalance + harmonic compensation)
Compensation Voltage Range	AC380 ±20% (-40%~+30% customizable)
Transformer Ratio	5:1
Harmonic Compensation Rate	3-13th comprehensive harmonic compensation ≥95%
Reactive Power Compensation Rate	Reactive power compensation ≥99%
Three-Phase Unbalance Compensation Rate	/	Unbalance degree after compensation ≤5%
Allowable Grid Frequency	45~63Hz
Output Voltage THD Increment	≤1%
Compensation Response Time	<20ms

Transformer Parameters

Parameter	Single-Phase	Three-Phase
Rated Capacity	6kVA	6kVA~100kVA
Type	Dry type, magnetic core made of stacked silicon steel sheets, frame grounded
Overload Capability	1.1 times longer running time
Insulation	Insulation level H
Transformation Ratio	220:44
Design Temperature	Temperature rise ≤90K
Applicable Standard	IEC 726

System Parameters

Altitude	<2000m; above 2000m, use in accordance with GB/T 3859.2 for derating
Ambient Temperature	-10~+50°C (reduced capacity above 40°C)
Relative Humidity	90%, monthly minimum temperature 25°C, no condensation on the surface
Pollution Degree	Below Level I
Noise Level	≤70dB
Degree of Protection	IP20 (IP54 customizable)

1. What is the GY-AVC-PLUS?

The GY-AVC-PLUS is a Unified Power Quality Control Device consisting of a rectifier, inverter, compensating transformer, monitoring system and AC/DC distribution. It integrates voltage sag/swell control with reactive, harmonic and three-phase unbalance compensation.

2. What are its core functions?

Voltage Governance — sag (-40%) and swell (+30%) control.
Reactive Compensation — compensation rate ≥99%.
Harmonic Compensation — 3-13th comprehensive rate ≥95%.
Unbalance Correction — unbalance degree after compensation ≤5%.

3. Which key parameters affect selection?

Voltage Level — AC220V single-phase or AC380V three-phase.
Rated Power — from 30kVA up to 500kVA.
Voltage Range — -40%~+30% governance capability.
Function Combination — voltage compensation plus selectable reactive/harmonic/unbalance modes.

4. Which specifications / models are available?

Common models include GY-AVC-PLUS-0.22-30k (220V) and 380V models from 30k, 60k, 80k, 100k, 150k, 300k, 400k to 500k. All use forced air cooling; configuration can be adjusted per capacity requirements.

5. What standards and target markets does it suit?

The transformer complies with IEC 726; altitude derating follows GB/T 3859.2, pollution degree below Level I, protection rating IP20 (IP54 customizable). It targets production sites sensitive to voltage fluctuation, harmonics and load unbalance.

6. What should be noted for installation and maintenance?

Installation — cabinet-type with L/N+PE or three-phase four-wire +PE connection.
Cooling — forced air cooling; ensure adequate ventilation.
Environment — operating temperature -10~+50°C, humidity ≤90%.
Maintenance — modular design and seamless grid switching support convenient servicing.

GY-AVC-PLUS Unified Power Quality Control Device