GEDA series single phase AC switching device
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1.GEDA introduction
This product is a multi-function power module installations, which integrates single-phase thyristor main circuit, phase transfer trigger and modulating circuit, temperature protection circuit, radiator, fans, switch-mode stabilized voltage power supply.
It is installed on the wall. It is a integrated electrical phase-shift open-loop systems, which allows hand-control,automation, linear control. It is stable in quality, convenient in using and with high precision. This module is widely used in inductive resistance loads, such as AC motor, transformer, temperature control, brightness modulation and AC voltage modulation, etc. |
2. Internal lines connection, classification and name
3. Main technical standards(GEDA-50;70;120;200;250;350;500)
| Function |
Single phase thyristor AC voltage modulation |
| Input voltage |
220V+20% 380V+20% |
| Power source |
12V,1A |
| Controlling voltage |
0-10VDC |
| Controlling current |
4-20mA |
| Hand-control potentiometer resistance |
10KΩ |
| Colling method |
Wind-colling radiator |
Electric fan:220V0.15~0.25A |
| Ambient temperature |
-25~+55oC |
| Proteltive temperature |
75oC+2oC |
| Input voltage asymmetry degree |
≤6% |
| Main circuit parameter |
| Parameter |
Unit |
Value |
| Load current |
Arms |
50 |
70 |
120 |
200 |
250 |
350 |
500 |
| TRIAC over voltage |
Vpk |
800-1200 |
| 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 |
≤10 |
≤10 |
≤15 |
≤20 |
| On state leakape current |
Vrms |
1.6 |
1.8 |
1.8 |
1.8 |
| Voltage drop insulating voltage |
Vrms |
≥2500 |
| Weight |
Kg |
6.5 |
4. Debugging method and Connection
Connections of control lines(50-150A module)
·10V voltage control ·10K potentiometer control ·4-20mA control
| 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. |
5. Connections
6. Exterior and dimensions
|
Type
Dimension |
GEDA-50-120 |
GEDA-200;250 |
GEDA-350-500 |
| Volume L*B*H(mm) |
350*164*159 |
350*164*231 |
380*164*231 |
| Mounting hole F*E*Φ |
330*82*Φ9 |
330*82*Φ9 |
330*82*Φ9 |
7. Cautions
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·The module is dangerous or even damaged if output current is big when module operated in a small dredge angle.
·Protection of the module: fast acting fuse should be applied in short circuit protection, for over voltage protection, we have adopted impedance capacitance absorbing and pressure responsive resistor, for over temperature protection, a temperature switch of 75℃ is applied, when the temperature of the load exceeds 75℃,no output until problem solved, the system will come back to normal as the temperature drops below 75℃.
·This module is equipped with +12V working power supply.
·The anode and cathode can’t be reversed when connecting external voltage and modulating current. In the modulation of voltage, multi-loop precise potentiometer is better to be used. Attention: only one way is allowed simultaneously.
·The current of the module should be over 2 times as large as the current of the load if the load is impedance load.
·The current of the module should be over 3 times as large as the current of the load if it is inductive load.
·The current of the module should appropriately multiples if the current of the load changes greatly.The wires ends should be fixed to the electrodes of the module, the studs must be firm and have good planarpressure contact.
·The wire ends and zones should be fastened, to avoid additive heat caused by bad contact, and covered by insulated heat- shrinking hose.
·The housing of the equipment needs to connect to ground for the consideration of safety and interference. | | |
