1. Introduction
The TOMZN TOVPD3-63VA is a sophisticated 3-phase voltage and current protector designed for DIN rail mounting. It provides comprehensive protection against over-voltage, under-voltage, over-current, asymmetry, and phase sequence issues. Featuring real-time display of voltage and current, adjustable protection parameters, and automatic reset functionality, this device ensures the safe and stable operation of your electrical systems.
2. Product Features
- Over-voltage protection: Adjustable
- Under-voltage protection: Adjustable
- Over-current protection: Adjustable
- Asymmetry protection
- Phase sequence protection
- Adjustable active time and reconnect time
- Manual calibration for voltage and current
- Real-time display of working voltage and current
- Automatic reset to prevent prolonged power failure
- Quick response to voltage and current anomalies
- Flame retardant shell for enhanced safety
3. Specifications
| Parameter | Value |
|---|---|
| Rated supply voltage | 3*200V |
| Operation voltage range | 300V |
| Rated frequency | 50/60Hz |
| Hysteresis | Over voltage and asymmetry: 5V, Under voltage: 3V |
| Asymmetry trip delay | 10s |
| Voltage measurement accuracy | 1% (over the whole range) |
| Rated insulation voltage | 450V |
| Output contact | 1NO |
| Electrical life | 105 |
| Mechanical life | 105 |
| Protection degree | IP20 |
| Pollution degree | 3 |
| Altitude | ≤2000m |
| Operating temperature | -5°C ~ 40°C |
| Humidity | ≤50% at 40°C |
| Storage temperature | -25°C ~ 55°C |
4. Setup and Installation
4.1 Wiring Diagram
Proper wiring is crucial for the safe and correct operation of the protector. Refer to the following diagrams for connection instructions. Ensure all connections are secure and comply with local electrical codes.
4.2 Connection Types
The protector supports different wiring configurations depending on your power supply. Please identify your system type and connect accordingly:
- 63A With N 220V: For 3*220V+N systems. Each phase (L1, L2, L3) will display 220V.
- 63A without N 380V: For 3-phase systems without a neutral connection. L1, L2, L3 will all display 380V.
- 100A With N 220V: For 3*220V+N systems. Each phase (L1, L2, L3) will display 220V.
4.3 Initial Power-On
After wiring, apply power to the circuit. The device will perform a self-check and display the current voltage and current readings for each phase. Ensure the readings are consistent with your power supply.
5. Operating Instructions
5.1 Panel Introduction
The front panel of the protector features a clear dual display for voltage and current, along with control buttons and indicators.
- Power Button: Used to manually switch the output.
- SET Button: Menu key for accessing and confirming settings.
- Up Arrow Button: Adjustment key to increase values.
- Down Arrow Button: Adjustment key to decrease values.
- Output Indicator: Indicates when the output is active.
- >U Indicator: Over-voltage indication.
- <U Indicator: Under-voltage indication.
- >I Indicator: Over-current indication.
5.2 Main Menu Settings
To adjust protection parameters, press the 'SET' button to enter the main menu. Use the Up and Down arrow keys to navigate through parameters (P1-C5) and adjust their values. Long press the adjustment keys for rapid changes. Press 'SET' again to confirm and save settings.
| Code | Parameter | Value Range |
|---|---|---|
| P1 | Power On Time | 1-500S |
| U1 | Over Voltage | 230-300V |
| U2 | Recovery Voltage (Over-voltage) | 220-295V |
| U3 | Recovery Time (Over-voltage) | 1-500S |
| U4 | Power Off delay Time (Over-voltage) | 0.1-30S |
| U5 | Under Voltage | 140-210V |
| U6 | Recovery Voltage (Under-voltage) | 145-215V |
| U7 | Recovery Time (Under-voltage) | 1-500S |
| U8 | Power Off delay Time (Under-voltage) | 0.1-30S |
| U9 | Voltage Deviation | -9.5 to 9.5% |
| U10 | Asymmetry | 20-99V |
| U11 | Phase sequence protect | on/off |
| C1 | Over Current | 3-63A |
| C2 | Recovery Time (Over-current) | 1-500S |
| C3 | Power Off delay Time (Over-current) | 0.1-30S |
| C4 | Current Deviation | -9.5 to 9.5% |
| C5 | Continues Over Current Times | 1-20 off |
5.3 Calibration
If the displayed voltage or current values are incorrect, you can manually calibrate them. Refer to the Main Menu Settings (Figure 7) for specific calibration options, typically involving adjusting a deviation parameter (e.g., U9 for Voltage Deviation, C4 for Current Deviation).
6. Operating Range and Function Description
This section details the adjustable settings and their corresponding functions.
| Technical Parameter | Setting Range | Factory Setting | Step | Function Description |
|---|---|---|---|---|
| Power-on delay time | 1s-500s | 10s | 1s | After external power cut, the time needed for power-on when power recovery. |
| Over-voltage protection value | 230V-300V | 270V | 1V | When the voltage is higher than the set value, the protector will cut off the line. |
| Over-voltage recovery value | 225V-295V | 265V | 1V | When the voltage is lower than the set value, the protector will automatically reset, and the set value must be less than the over-voltage protection value by more than 5V. |
| Over-voltage recovery delay time | 1s-500s | 30s | 1s | After over-voltage recovery, the time needed for automatic reset. |
| Over-voltage protection action time | 0.1s-30s | 1.0s | 0.1s | When the voltage is higher than the set value, the time needed for protection action. |
| Under-voltage protection value | 140V-210V | 170V | 1V | When the voltage is lower than the set value, the protector will cut off the line. |
| Under-voltage recovery value | 145V-215V | 175V | 1V | When the voltage is higher than the set value, the protector will automatically reset, and the set value must be more than the under-voltage protection value by more than 5V. |
| Under-voltage recovery delay time | 1s-500s | 30s | 1s | After under-voltage recovery, the time needed for automatic reset. |
| Under-voltage protection action time | 0.1s-30s | 1.0s | 0.1s | When the voltage is lower than the set value, the time needed for protection action. |
| Three phase voltage error value | -9.5%-9.5% | 0 | Correct the three phase voltage error. | |
| Three phase voltage unbalance value | 20V-99V | 20V | 1V | When the error among the three phase voltage is bigger than the set value, the protector will cut off the line. |
| Three phase voltage unbalance protection switch | OFF/ON | OFF | Switch on or off the three phase voltage unbalance protection function. | |
| Over-current protection value | 0.5A-63A | 30A | 1A | When the current is higher than the set value, the protector will cut off the line. |
| Over-current recovery delay time | 1s-500s | 30s | 1s | After over-current recovery, the time needed for automatic reset. |
| Over-current protection action time | 0.1s-30s | 1.0s | 0.1s | When the current is higher than the set value, the time needed for protection action. |
| Three phase current error value | -9.5%-9.5% | 0 | Correct the three phase current error. | |
| Times of continuous over current protection | 0-20 | OFF | 1 | When the times of continuous over-current protection exceeds the set value, the protector will cut off the line, then it needs to be opened manually. |
| Phase-loss protection | ON | One of the three-phase voltages is losing, the protector will cut off the line. |
7. Maintenance
- Keep the device clean and free from dust and moisture.
- Regularly check wiring connections for tightness and signs of wear.
- Ensure proper ventilation around the device to prevent overheating.
- Do not attempt to open or repair the device yourself. Contact qualified personnel for service.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device trips randomly or frequently. | Protection parameters (over/under voltage, over-current, asymmetry) are set too sensitively or outside normal operating range. | Review and adjust the protection parameters (U1-U8, C1-C3, U10) in the main menu to match your system's stable operating conditions. Ensure recovery times are appropriate. |
| Device cuts off power and requires manual reset after continuous over-current. | The "Continues Over Current Times" (C5) parameter has been exceeded. | This is expected behavior. Manually reset the device. Consider increasing the C5 value if frequent, non-critical over-currents occur, or investigate the cause of the over-current. |
| One or more phases show 0V or incorrect voltage. | Phase loss, incorrect wiring, or voltage measurement error. | Check wiring for secure connections. Verify input voltage with a multimeter. If wiring is correct, check U11 (Phase sequence protect) setting. If readings are slightly off, use the calibration feature (U9, C4). |
| Display shows incorrect voltage/current values. | Measurement deviation. | Use the manual calibration feature (U9 for voltage deviation, C4 for current deviation) to correct the readings. |
9. User Tips
- Understand Your System: Before installation, confirm your power supply type (e.g., 3*120V+N, 3*220V+N, or 380V without N) to ensure correct wiring and parameter settings.
- Parameter Adjustment: Take time to carefully adjust the over-voltage, under-voltage, and over-current protection values (U1, U5, C1) to suit your specific load and local grid conditions. Setting them too tight can lead to nuisance tripping, while too loose can compromise protection.
- Recovery Times: The recovery time settings (U3, U7, C2) determine how quickly the device restores power after a fault. Adjust these based on the sensitivity of your connected equipment.
- Phase Loss Protection: Ensure the phase sequence protection (U11) is enabled if your equipment is sensitive to phase loss. If a phase is lost, the device will cut off power to protect your connected load.
- Manual Reset for Continuous Over-current: If you experience frequent over-current trips that lead to a manual reset (due to C5 setting), consider if your load is drawing too much current or if the C1 setting is too low for your application.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the seller's official channels or contact the manufacturer directly. Keep your purchase receipt for warranty claims.
