Product Overview

The interference of system voltage causes short-term voltage dip on the load side (lasting from several to dozens of cycles), which is the primary cause of malfunctions in sensitive loads, particularly in computer equipment.

Dynamic Voltage Restorer (DVR) adopts the latest PWM interleaving technology. In case of a voltage dip, the DVR can quickly compensate for voltage fluctuations, correct three-phase voltage imbalances, mitigate flicker, and adjust voltage deviations to maintain stable output voltage, thereby protecting loads.

Product Type

Online DVR-X: The product is composed of an inverter, isolation transformer, supercapacitor, SCR switch, etc., with the superca-pacitor providing energy to the grid for compensation. In case of a voltage dip, the grid voltage can be disconnected, allowing the supercapacitor to supply energy to the load without being affected by fluctuations in the grid voltage. Compensation depth can cover 0-130%.

Offline DVR-D: The product consists of a rectifier, inverter, compensation transformer, and bypass. The compensation energy is sourced from the power grid via the converter. It offers a voltage dip compensation depth of 40%, completely correcting the voltage dip, and effectively addressing the voltage dips and surges, which helps prevent economic and production losses caused by voltage fluctuations to users.

Application Scenarios

It is applied in industries with continuous operations, such as chip manufacturing, automotive, pharmaceuticals, petrochemicals, hospitals, power plants, food processing, chemical fibers, glass production, data centers, and tobacco.

The DVR device can be installed in series between the data center, servers, and system power supply to protect against voltage dips, preventing server failures and data loss, and enhancing the safety and reliability of computer systems;

The DVR device can also be installed in series between sensitive loads and system power supplies to protect against voltage distur-bances, preventing malfunctions in sensitive loads. For example, in semiconductor factories, it safeguards against voltage dips and short interruptions that could otherwise lead to significant economic losses and a large amount of scraped products;

For UPS applications that do not require long-term power backup, the DVR device offers superior dynamic voltage compensation capabilities and a better cost-performance ratio compared to UPS systems, making it an effective solution for improving voltage quality on the load side.