DNAM Terminal Line Voltage Compensation Device-Shenzhen Lite Electric Energy Quality Co., Ltd

Product Description

Brief introduction

Function:The voltage regulator series products are developed for sites with long power supply radius and large load changes, such as rural power grids, resulting in low voltage at the end of the power supply. This product plays a role in regulating and stabilizing the back-end voltage, effectively solving the problem of low voltage at the end of the distribution network.

2、 Working principle

This series of products mainly consists of AC bypass units, power transformers, rectifier units, inverter units, input-output distribution and protection, communication units, etc.

When the input voltage of the mains is within the allowable fluctuation range, the system operates in AC bypass mode; When the increase in load leads to the phenomenon of "low voltage" or the decrease in load leads to the phenomenon of "high voltage", the system switches from bypass mode to rectifier inverter mode. The rectifier unit is controlled by a digital signal processor to output a stable internal DC voltage from the IGBT module. At the same time, the rectifier unit has a voltage stabilization function, which can suppress fluctuations in the input mains voltage. The inverter unit calculates the required compensation voltage based on the current mains voltage, and the corresponding voltage output by the inverter unit is superimposed on the mains voltage through a transformer to supply the load together, thus solving the problem of "low voltage" or "high voltage".

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Figure 1 Schematic diagram of voltage regulator

3、 Technical specifications

DNAM single-phase terminal voltage compensation device
Electrical specifications	input voltage	120V -270V
	phase number	single-phase
	rated output voltage	220Vrms/230Vrms panels can be set
	frequency	50Hz±10%
	rated output capacity	10kVA	20kVA	30kVA
	Inverter overload capacity	<1.05 times the rated power can be overloaded for a long time, 1.05 to 1.1 times the power can be overloaded for 1 hour before switching to the bypass, 1.1 to 1.25 times the power can be overloaded for 10 minutes before switching to the bypass, 1.25 to 1.5 times the power can be overloaded for 1 minute before switching to the bypass, and over 1.5 times the power can be overloaded for 0.2 seconds before switching to the bypass
	Maximum efficiency	>96.5%
communication interface	dry contact	1 EPO
	communication	RS485, WIFI (optional)
Environmental Specifications	Usage location	outdoors
	Working altitude	Below 1000 meters, use with reduced rating when above 1000 meters
	Storage temperature	-20℃ ~ 70℃
	Operating Temperature	-10℃ ~ 40℃
	humidity	Less than 95% RH, no condensation of water droplets
	vibration	Less than 5.9 meters per second ² (0.6g)
structure	Protection level	IP43
	size	600600920
	Net weight of integrated product	75kg/90kg/100kg
	cooling method	Smart Air Cooling

Specifications	DNAM three-phase terminal voltage compensation device
Rated input voltage	380V
input current	152A
rated output voltage	390V
output current	148A
Communication output type	(3W N PE) three-phase four wire
Rated capacity	100kVA
Input Voltage	AC 380V（ 32% ，-40%）
Rated grid frequency	50Hz±5%
voltage regulation accuracy	1%
response time	<5ms
Total voltage distortion rate	<4%
Ambient Temperature	-25 ℃~55 ℃ (derating at>45 ℃)
Working environment humidity	<95%RH ， No condensation
cooling method	Smart Air Cooling
Protection level	IP44
Working altitude	<4000 meters (use with reduced rating if greater than 2000 meters)
noise	<65dB
protection function	Overload protection, over temperature protection, over voltage protection, under voltage protection, over-current protection, over frequency protection, under frequency protection, etc
interface display	Equipment, power grid, load, temperature data display, parameter setting, operating status display, power on/off control, etc
contact method	Modbus-RS485 、WIFI
size	451mm (width) x 1020mm (height) x 800mm (depth)