Product details

GVTA/GVDA Three and Single Phase AC Switching IPM Modules

The single phase and three phase SCR power controller, also called AC voltage regulation module is an integrated power module designed for precise control of load voltage. It encapsulates a thyristor power circuit, a microcontroller-controlled phase-shift trigger circuit, a signal detection sensor circuit, and a voltage regulation circuit. With a built-in linear control circuit, it offers high precision and stability. The module supports a rated current range of 50A to 800A, rated voltages of 220V, 380V, and 440V, and frequencies of 50Hz and 60Hz. It is widely used in applications requiring precise voltage regulation, such as various inductive and resistive loads, AC motor control, transformer regulation, temperature control, dimming, and AC voltage regulation, making it suitable for a variety of industrial and commercial equipment.

Parameter	Unit	Value
Input Voltage Range		220V±20%, 380V±20%, 440V±20%
Output Waveform Asymmetry		≤2%, ≤6%
Control Signal Voltage	VDC	0-10 (Input Impedance 10KΩ)
Control Current	mA	4-20 (Input Impedance 330Ω)
Manual Potentiometer Resistance	KΩ	10
Cooling Method		Heat sink air cooling, wind speed ≥6m/s
Operating Temperature	℃	-30 ~ 40
Storage Temperature Range	℃	-25 ~ 55
Rated Current	Arms	50, 70, 100, 120, 150, 200, 250, 350, 500, 800
Thyristor Blocking Voltage	Vpk	800-1200
Off-state Leakage Current (Max.)	mArms	≤8, ≤10, ≤10, ≤10, ≤10, ≤10, ≤15, ≤15, ≤20,≤20
On-state Voltage Drop (Max.)	Vrms	1.6, 1.6, 1.6, 1.8, 1.8, 1.8,1.8, 1.8, 1.8,1.8
Insulation Voltage (Terminal/Baseplate)	Vrms	≥2500
Weight	Kg	0.425, 2.2

Note: Red mark parameter is for three phase only, the power supply is 12V, ≤400mA.

Part Numbers

Rated Current	Single Phase	Three Phase	Single Phase	Three Phase
Rated Current	480VAC 50Hz	480VAC 50Hz	480VAC 60Hz	480VAC 60Hz
50A	GVDA-50D	GVTA-50D	GVDA-50E	GVTA-50E
70A	GVDA-70D	GVTA-70D	GVDA-70E	GVTA-70E
100A	GVDA-100D	GVTA-100D	GVDA-100E	GVTA-100E
120A	GVDA-120D	GVTA-120D	GVDA-120E	GVTA-120E
150A	GVDA-150D	GVTA-150D	GVDA-150E	GVTA-150E
200A	GVDA-200D	GVTA-200D	GVDA-200E	GVTA-200E
250A	GVDA-250D	GVTA-250D	GVDA-250E	GVTA-250E
350A	GVDA-350D	GVTA-350D	GVDA-350E	GVTA-350E
500A	GVDA-500D	GVTA-500D	GVDA-500E	GVTA-500E
800A	GVDA-800D	GVTA-800D	GVDA-800E	GVTA-800E

Control Diagram

control method of ipm module

For the 220V module, the input and output neutral and live wires must not be reversed. Connect L1 to the live wire, L2 to the load, and N to the neutral wire, as labeled in Figure 1. For 380V and 440V modules, L1 and L2 can be connected arbitrarily.
The red LED indicates a 12V power supply, and the green LED indicates operation. When using, first connect the 12V control power supply. At this time, the red LED will be on, and the green LED will be off. Then connect the AC main circuit. After a 1-second self-check by the microcontroller, the green LED will light up, indicating normal operation. Please use a 12V/1A switching power supply.
This module uses a positive control method, meaning when the input control voltage (current) is 0V (or 4mA), the AC output is 0V. When the input control voltage is 10V (or 20mA), the AC output is approximately equal to the AC power supply voltage.
The 200A—500A voltage regulation module terminals use a 232 socket wiring method. The ports are VCC (red), CON1 (orange), CON (yellow), 4-20mA (green), and GND (black). Other ports are empty pins. As shown in the diagram, the connection method is the same as in Figure 5.
The diagram below shows the control output curves for inductive and resistive loads as measured on the module, provided for user reference.

diagram of inductive load and resistive load

Dimension

GVDA GVTA thyristor power controller

Note

It is recommended to use a suitable heat sink with the single-phase AC voltage regulation module, and apply thermal grease between the heat sink and the base plate. For high power or poor heat dissipation conditions, consider using air or water cooling.
It is strictly prohibited for the module to output large currents at small conduction angles (i.e., high input, low output voltage), as this will cause severe heating and damage to the module.
Module protection: Use a semiconductor-specific fast fuse for short-circuit protection. For over-voltage protection, an internal RC snubber circuit is installed, and it is recommended to use a varistor for protection. The selection principle is the same as for thyristor modules.
When adjusting external voltage or current, do not reverse the positive and negative terminals!
For resistive loads, it is recommended to select a module current that is more than three times the load current.
For inductive loads, it is recommended to select a module current that is more than four times the load current.
For loads with large current fluctuations, the current multiple should be appropriately increased when selecting a module.
The wiring terminals should be fixed on the module electrodes, the bolts must be tightened, and good flat pressure contact should be maintained to avoid excessive stress on the wiring terminals.
During operation, if the green LED flashes, it indicates poor contact at the AC input end, and power should be cut off for timely inspection and repair.