This product is a multi-functional high-power module, which integrates thyristor circuit, phase-shift trigger modulation.It is an integrated phase-shift and open-loop system, protected by stable security function. It can realize the hand-control and automation of 3-phase voltage modulation.It is widely used in the fields such as,speed control of 3-phase AC electric motor,electric heating control, diversified power supplies, and industrial automation,chemicals, mines, textiles, and communications, etc. it has 0-10V and 4-20mA inputinterfaces, no phase order requirement of the main AC inputs. This module is highly precise, stable in quality and convenient in using.
GVTA series AC switching module with phase-shift voltage regulating controller
Main technical standards(GVTA-50;70;120;200;250;350;500)
| Function | Thyristor AC three-phase voltage modulation | |||||||
| Input voltage | 380V+20% | |||||||
| Asymmetry degree of output positive and negative waves | 12V,≤400mA | |||||||
| Controlling voltage | 0-10VDC (input resistance 10KΩ) | |||||||
| Controlling current | 4-20mA (input resistance 330Ω) | |||||||
| Hand-control potentiometer resistance | 10KΩ | |||||||
| Colling method | Wind-colling radiator | |||||||
| Ambient temperature | -30oC~ +40oC | |||||||
| Input voltage asymmetry degree | ≤6% | |||||||
| Main circuit parameter | ||||||||
| Parameter | Unit | Value | ||||||
| Load current | Arms | 50 | 70 | 120 | 200 | 250 | 350 | 500 |
| Max working current | Arms | 3*50 | 3*70 | 3*120 | 3*200 | 3*250 | 3*350 | 3*500 |
| TRIAC over voltage | Vpk | 1200 | ||||||
| Frequency | Hz | 50-60 | ||||||
| Off state voltage rising rate | V/sec | 500 | ||||||
| On state voltage rising rate | A/sec | 100 | ||||||
| Off state leakape current | mArms | ≤8 | ≤10 | ≤10 | ≤10 | ≤15 | ≤15 | ≤20 |
| On state leakape current | Vrms | 1.6 | 1.6 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
| Voltage drop insulating voltage | Vrms | ≥2500 | ||||||
| Weight | Kg | 0.425 | 2.2 | |||||
Exterior and installation dimensions
Connections of control lines(50-120A module)
– 10V voltage control
– 10K potentiometer control
– 4-20mA control
GVTA series AC switching module with phase-shift voltage regulating controller
Remarks:the interfaces of 200A—500A modules:VCC(red)?CON1(blue)?Econ(orange)?CON(yellow)?4-20mA(green)GND(black)others are blank See the right map connections is the same as above.
GVTA series AC switching module with phase-shift voltage regulating controller
