Generator Comprehensive Characteristic Tester

MOEORW-WFX05 Generator Comprehensive Characteristic Tester

The MOEORW-WFX05 generator comprehensive characteristic tester is a dedicated device for electrical start-up testing of power plant units after major overhauls. It provides accurate measurements, has comprehensive functions, and is suitable for various types of power plants, including thermal, hydro, and nuclear power plants. It can perform multiple characteristic tests and data analysis to ensure the safe and stable operation of generators.

The MOEORW-WFX05 generator characteristic comprehensive testing system is specifically designed for completing electrical start-up tests of generator sets after major overhauls in power plants. It can perform real-time measurement and analysis of various characteristic curves of generators (generator no-load, short-circuit, demagnetization, zero start, ±10% step, frequency test, and exciter load test, etc.), and features multiple measurement signals and high accuracy.

1. Access characteristics of 12-channel signals:

0-150V AC voltage 3 groups (Stator secondary voltage)

0-750V AC voltage 3 groups (Exciter stator secondary voltage)

0-10mA AC current in 3 groups (Stator secondary current passes through a clamp-on current sensor)

0 to ±75mV DC voltage 2 groups (Generator rotor current)

0 to ±1000V DC voltage Group 1 (Generator rotor voltage)

2. Accuracy:

12-channel signal accuracy class 0.5

12-bit A/D sampling, 125kHz rate

3. Response time: ≤20ms

4. Two USB ports: for data export.

5. Start-up method: Manual; Automatic

6. Power supply: AC220±10%

7. Instrument dimensions: 330×310×202; Instrument weight: 15kg

• It adopts a standard interface to meet the needs of various power plants (thermal power plants, hydropower plants, nuclear power plants, etc.).
• It can collect data automatically or interactively.
• Real-time plotting of characteristic curves makes testing more intuitive.
• Waveform comparison can be performed, and the measured data and historical data can be compared on the same coordinate to facilitate judgment.
• The test data is stable, accurate, and reliable, which enables the correct assessment of the motor's maintenance status and ensures the generator's normal operation.
• Using charts and graphs makes analysis, judgment, and archiving easier.
• The system adopts an integrated design of industrial computer motherboard, large-screen LCD display, and test unit, resulting in higher reliability.
• This system has a high degree of programmability, which greatly reduces testing complexity and improves work efficiency and security.
• The 6-channel voltage signal processing adopts advanced electromagnetic induction and opto-isolation principles, resulting in high testing accuracy, fast response time, and stable performance. Input and output are completely isolated, with an isolation voltage greater than 3KV. Overload capacity is twice the nominal voltage (3-phase 150V, 3-phase 750V), and input impedance is greater than 150KΩ (or 750KΩ).
• The three-channel current signal processing uses clamp-on current sensors, which are convenient and safe for on-site wiring, provide high testing accuracy, fast response time, and stable performance. The input and output are completely isolated, with an isolation voltage greater than 3KV. It can withstand a continuous overload of twice the nominal value and an instantaneous overload of 20 times for 60 seconds.

▲ The electrical startup test phase after a major overhaul of a power plant generator set involves completing various generator characteristic tests and data analysis.

▲ We conduct characteristic testing on generators and exciters for various types of power plants, including thermal, hydroelectric, and nuclear power plants, to meet the testing needs of different power plants.

▲ Real-time measurement and analysis of multiple characteristic curves of generators and exciters under no-load, short-circuit, and demagnetization conditions are performed to determine the equipment maintenance status.

▲ By comparing historical and measured data from generator-related tests, and by calculating and analyzing various performance coefficients (saturation coefficient, short-circuit ratio, etc.), data support is provided for the normal operation of the equipment.