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Voltage fluctuations can lead to unplanned production line shutdowns, causing the production line to operate abnormally and product quality to decline. It can also lead to serious consequences caused by production line disorder and disorderly start-up. In addition, the wear and tear on the machine is increased, which in turn shortens the service life and even damages the equipment. The Automatic Voltage Controller (AVC) developed by our company is an inverter-based system used to protect sensitive industrial and commercial loads from voltage fluctuations. This product can quickly and accurately compensate for voltage sags and swells, and can provide continuous voltage regulation and load voltage compensation functions. At the same time, the product has a power-off protection function, and the internal clock and user-set parameters are not affected by system power outages. The automatic voltage regulator is a three-phase five-wire single-phase compensation transformer-type voltage regulating output, which is suitable for situations where the voltage is unbalanced.
Automatic Voltage Controller (AVC) combines several key components, including an AC-AC converter, knife switch (QS), molded case circuit breaker (QF), contactor (KM), and compensation transformer. The AC-AC converter, driven by fully controlled power electronics, facilitates bidirectional energy flow. The knife switch (QS) is employed for maintenance, transitioning to the bypass state. Contactor KM manages load disconnection/connection during compensation.
LCD Display
Battery Integration
Dynamic Automatic Voltage Control
Voltage Controller with Battery
Available in sizes from 30 to 500 kVA, the outdoor automatic voltage regulator provides superior voltage regulation. Capable of withstanding climactic extremes from -20° to +50°C, the AVC is uniquely suited to provide regulated precision power to mission critical outdoor loads. Each phase is independently regulated, and the PCBs are fully connectorized for ease of service. Applications include oil & gas, mining, construction, chemicals, water treatment, and defense.
Type | Series 220V | Series 380V |
Norminal Voltage | AC220V (±20%) | AC380V (±20%) |
Rated Frequency | 50Hz±5% | |
Compensating Current | 30kVA | 30kVA, 45kVA, 60kVA, 80kVA, 100kVA, 120kVA, 250kVA, 500kVA |
Network | L/N | 3P4W |
Current Harmonic Distortion Rate | Increment ≤1% | |
Voltage Harmonic Distortion Rate | Increment ≤1% | |
Output Voltage | 220V±1% | |
Voltage Regulating Way | Stepless, Breakerless | |
Regulating Way | Separate phase regulation | |
Power Factor | 0.5 lag to 0.7 lead | |
Machine Efficiency | ≥95% | |
SCR Bypass | SCR Bypass Yes, with Relay | |
Display | 7-inch touch screen, providing parameter settings, power information display, fault records, historical curves, etc. | |
Protection Function | Input overvoltage/undervoltage protection, output overvoltage/undervoltage protection, input overcurrent protection, transformer overtemperature protection, output overload protection, etc. | |
Communication Methods | Four-channel RS485 communication interface (support GPRS/WIFI wireless communication), Ethernet, USB | |
Altitude without Derating | <2000m | |
Temperature | -20℃ ~ 50℃ | |
Humidity | <90% RH | |
Pollution Level | Below level Ⅲ | |
Noise | ≤65dB | |
Inlet Way | Top entry | |
Protection Grade | IP20 |