1. Brand and Model Breakdown:
- Brand: WF·EL (Wenfei Electrical Equipment Manufacturing Co., Ltd.), specializing in the development and manufacturing of industrial voltage stabilizing power sources. Products are designed to comply with national industrial power grid standards.
- Model Explanation:
- TNS: Three-phase high-precision fully automatic AC voltage regulator series, utilizing servo motors and contact voltage regulators for compensation.
- Z: The smart digital upgrade model, differentiated from traditional analog models, featuring an LCD display and intelligent control modules.
- 30KVA: Rated capacity of 30 KVA, designed for three-phase 380V power grids, suitable for carrying approximately 24 kW of industrial load (resistive load).
2. Core Technology and Working Principle:
The TNS-Z-30 KVA uses a phase-independent voltage regulation system combined with a three-phase coordination control scheme. It contains three independent regulation units to monitor the A/B/C phase input voltages in real-time. The servo motor drives the contact voltage regulator to adjust the compensation amount and ensure that each phase's output voltage stays within the 380V ±1% range.
- Response time: ≤0.5 seconds to voltage fluctuations with no mechanical shock or waveform distortion.
- Phase imbalance: Can independently correct voltage deviations in each phase to prevent equipment damage caused by abnormal voltage in any single phase.
3. Key Technical Parameters:
| Item | Parameter Details |
|---|---|
| Rated Capacity | 30 KVA |
| Phase/Mode | Three-phase four-wire system (380V/50Hz) |
| Input Voltage Range | 260V~430V (Customizable wide range) |
| Output Voltage | 380V ±1% (Voltage stabilization accuracy) |
| Frequency | 50Hz ±2Hz |
| Waveform Distortion | ≤1% (No additional distortion, no impact on equipment waveform) |
| Efficiency | ≥98% (Low loss, energy-efficient) |
| Regulation Method | Servo motor automatic compensation type |
| Response Time | ≤0.5 seconds (Quick response to voltage fluctuations) |
| Insulation Class | B Class |
| Protection Features | Overvoltage/Undervoltage protection, overload protection, short-circuit protection, phase loss protection, overheat protection |
4. Core Advantages:
- Intelligent LCD Monitoring: Equipped with a high-definition color LCD screen that displays real-time input/output voltage, current, frequency, and load status. In case of a fault, it automatically alerts and shows the fault code, making maintenance easy.
- Full Copper Coil Technology: Uses high-purity copper coils for better conductivity, lower heating, higher overload resistance, and a longer lifespan compared to aluminum coil models.
- Multiple Safety Protections: Integrated intelligent protection modules automatically disconnect output when voltage abnormalities, overloads, or short circuits occur, preventing damage to downstream equipment.
- Mobile Installation-Friendly: The device is equipped with caster wheels at the bottom, making it easy to move and deploy in factory workshops. The three-phase four-wire connection is compatible with standard industrial power distribution setups.
- 24/7 Stable Operation: Supports continuous 7×24-hour operation, making it ideal for factory workshops, laboratories, data centers, and other continuous work environments.
5. Typical Application Scenarios:
- Industrial Equipment: CNC machines, laser cutters, injection molding machines, printing equipment, air compressors, and production lines. The AVR helps resolve issues like reduced processing accuracy, machine downtime, and motherboard damage due to unstable voltage.
- Precision Instruments: Laboratory testing equipment, medical imaging devices, research instruments—ensures voltage stability to prevent data inaccuracies.
- Commercial/Building Applications: Large air conditioning systems, elevators, data centers—provides stable three-phase power to reduce the risk of failures caused by grid fluctuations.
- Outdoor/Remote Locations: Factories in remote areas, temporary construction site power distribution, agricultural processing equipment—suitable for environments with unstable power grids and large voltage fluctuations.
6. Installation and Usage Instructions:
- Before installation, ensure that the input voltage and phase sequence are correct, and properly ground the system when using a three-phase four-wire connection.
- For optimal performance, keep the load rate between 70% to 80% of the rated capacity (i.e., 21-24 kW) to avoid prolonged full-load operation that could affect the device's lifespan.
- Regularly clean the internal dust, check for coil heating, and ensure the cooling fan is functioning properly.
- Avoid using the device in damp, flammable, or explosive environments. Leave at least 30cm of space around the device for heat dissipation.