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YDKDVR Full Power Dynamic Voltage Restorer

YDKDVR full-power dynamic voltage restorer is a high-reliability multi-purpose power supply developed by Zhejiang Yide Technology Co., Ltd. using ARM's new generation 32-bit processor as the core, IGBT module as the actuator, and isolation transformer as the isolation filter element.

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Features Technical Indicators Overall Dimension

YDKDVR dynamic voltage restorer is mainly used to solve power quality problems such as short-term power outages and voltage drops. Compared with UPS, it has the advantages of no need for batteries and maintenance-free.

Product features
When the power grid is normal, the inverter compensation is in the inverter working standby mode, which saves energy and electricity
The inverter output is equipped with an isolation transformer, which is highly resistant to interference and impact
MCU monitors various parameters of the power grid voltage online, and switches to the inverter compensation state within 2ms after an abnormality (patented technology)
Uses supercapacitor energy storage, maintenance-free
Solve power grid quality abnormalities such as flicker, drop, ATS or STS switching, lightning strikes, etc.
10-inch HMI human-machine interface, convenient human-machine interaction
Record power grid quality abnormal events and compensation status
RS485 communication interface, standard MODBUS-RTU protocol, optional TCP/IP interface, remote viewing and control through mobile phone APP.
Application scope
Solve the instantaneous interruption of the ATS two-way power supply switching process
Solve the input phase loss
Solve the sudden rise and fall of the input power supply, voltage drop
Solve the input imbalance

Input Parameters

Parameter name	Index	Remark
Rated voltage	Three-phase 200V/220V/380V/400V/460V/690V (any voltage can be customized)	Three-phase three-wire (L1, L2, L3) + ground wire (PE) Three-phase four-wire (L1, L2, L3, N) + ground wire (PE)
Frequency	50/60HZ±5HZ
Voltage range	Input>70% rated value, long-term continuous operation The input can be completely powered off, the power-off duration depends on the capacity of the supercapacitor, nominal 3S/5S/10S/15S optional
Input phase loss	In case of input phase loss, normal output can be guaranteed, and long-term continuous operation can be achieved when the power of the other two phases is large enough.
Dual power input capability	ATS dual power input function, with oil engine start interface	Option, not standard
Efficiency	When the mains power is normal>98%	Energy saving, the inverter is switched on for compensation only within a short period of time

Output Parameters

Parameter name	Index	Remark
Output center voltage	Three-phase 200V/220V/380V/400V/460V/690V (±7% adjustable)	Three-phase three-wire (L1, L2, L3) + ground wire (PE) Three-phase four-wire (L1, L2, L3, N) + ground wire (PE)
Output frequency	Follow the Grid
Output voltage accuracy	<±1%	Inverter working, typical value
Output voltage harmonics THDv	Linear load <3%	Inverter working
Three-phase balance	Three-phase voltage automatic balancing	Inverter working
Load nature	Any load
Overload capacity	120% 10 minutes 150% 1 minute
Bypass function	With automatic bypass and maintenance bypass
Isolation	Output with isolation transformer	Support B phase grounding

Control parameters

Parameter name	Index	Remark
Main control components	The main measurement control chip adopts ARM32-bit processor, and the inverter actuator adopts IGBT module
Controlling the sampling rate	＞8K/S
Multiple modes can be switched freely	A. Online interactive type B. Online type C. Backup type	There are three modes to choose from, the default is online interactive
Switching time after power grid abnormality	<1/4 voltage cycle	Typical values in online interactive mode
Power-off time selectable	3S/5S/10S/15S	Support customization
Continuous power off interval time	≥30S
Interface	RS485, MODBUS-RTU protocol	Optional TCP/IP, GPRS

Display parameters

Parameter name	Index	Remark
Display Media	10-inch touch screen
Display rated parameters	Input voltage, current, power, power factor, drop amplitude, drop interruption time, output compensation status, output voltage, output current, frequency, power, load rate, power factor, etc.
Display alarm content	Fuse blown, overvoltage, undervoltage, overload, phase loss, IGBT module failure, overtemperature, etc.
Rated parameter display accuracy	Level 1.0
Voltage parameter resolution	0.1V	Customizable higher resolution
Current parameter resolution	0.1A	Customizable higher resolution

Physical parameters

Parameter name	Index	Remark
Cooling method	Temperature controlled forced air cooling
Protection level	Indoor IP20, Outdoor IP33 or higher