Name: Dynamic Voltage Restorer for Voltage Sag and Swell Protection
Brand: YIDEK
SKU: 00006
Rating: 4.9 (53 reviews)

Dynamic Voltage Restorer for Voltage Sag and Swell Protection

Intelligent Flexible Regulation Device for New Power Systems: Empowering Distribution Network Upgrades and Driving Efficient Industrial Energy Use.

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Low Loss: Single-stage AC/DC conversion with efficiency up to 98%; bypass loss <0.3%.
High Temperature Resistance: Full load operation at ambient temperature of 50℃.
High Accuracy, Wide Regulation Range: Fully power electronic control; output voltage accuracy
Protection: Fully sealed design; electronic layer IP65, moisture-resistant; easy installation and long-term maintenance-free.
Compact and Lightweight: Smaller size and lighter weight; only one-eighth the weight and one-sixth the volume of traditional voltage stabilizers.
Easy Operation: Supports wireless or wired communication; Wi-Fi/4G for real-time status monitoring and parameter adjustment.

What is a DVR?

A Dynamic Voltage Restorer (DVR) is a series-connected power quality device that protects sensitive loads from voltage disturbances by injecting a compensating voltage in real time.

It effectively mitigates:

Voltage sags
Voltage swells
Flicker
Voltage imbalance

Specifications

Single-phase capacity	20kVA, 33kVA, 50kVA, 66kVA
Three-phase capacity	50kVA, 100kVA, 150kVA, 200kVA

Voltage Regulation

Input voltage range	220V/380V (-40%~+35%), (-20%~+35%)
Output rated current	150A, 250A, 380A, 380A
Output rated current	90A, 150A, 227A, 300A
Output voltage range	-10%~+7% (National standard range)
Continuous regulation	Continuous
Output voltage accuracy	<1%
Output voltage unbalance	<1%
Output voltage THDv	<2%

Bypass

Upon fault	Automatic bypass
No compensation required	Automatic bypass
During maintenance	Manual bypass

Communication

Communication mode	RS485, CAN
Communication mode	4G, WIFI
Notes	Remote monitoring and control with a grid/communication terminal

Protection Rating

Electronic layer	IP65
Air duct	IP20
Outdoor cabinet	IP44
Notes	Internal module, housed in an outdoor cabinet

Technical Parameter

Dynamic response time	<1ms
Dynamic response time	<2%
Bypass loss	<0.3%
Noise	<60dB
Operating temperature	[-25C,+50C]
Storage temperature	[-40C,+70C]
Humidity	<99%
Safety protection	Supports over-temperature protection, overvoltage protection, and undervoltage protection.

RMS overload capacity

Continuous overload	110%
Notes	Ambient temperature 30℃

Related Resources	Download
YIDEK product brochure	Download
YDK-DVR Dynamic Voltage Regulator)	Download

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