Generator Testing Equipment

I. Overview

The Generator Characteristic Comprehensive Testing System is specifically designed for electrical start-up tests after major overhaul of power generation units in power plants. It can perform real-time measurement and analysis of various characteristic curves of generators (including no-load, short-circuit, de-magnetization, zero-start, ±10% step, frequency tests, and exciter load tests, etc.), featuring a multitude of measurement signals and high accuracy.

Technical Features

Utilizing standardized interfaces to cater to the requirements of various power plants (thermal power plants, hydropower plants, nuclear power plants, etc.).

2. It can perform automatic data collection as well as interactive data collection.

3. Real-time plotting of characteristic curves for more intuitive testing.

4. Waveform comparisons can be performed, allowing for a simultaneous comparison of measured data with historical data on the same coordinates, which aids in judgment.

5. The testing data is stable, accurate, and reliable, enabling precise assessment of the motor's maintenance status to ensure the generator operates smoothly.

6. Utilizing chart output methods, analysis and judgment become easier, as well as more conducive to archiving.

7. Utilizes an industrial control panel mainboard, a large-screen LCD display, and an integrated test unit design for enhanced reliability.

The system is highly automated, significantly reducing test complexity and enhancing work efficiency and safety.

The 9.6V voltage signal processing utilizes advanced electromagnetic induction and photoelectric isolation principles, offering high testing accuracy, fast response time, and stable performance. The input and output are completely isolated with isolation voltage exceeding 3KV, overload capacity twice the rated voltage (3-phase 150V, 3-phase 750V), and input impedance greater than 150KΩ (or 750 KΩ).

On October 3rd, the current signal processing utilizes a clamp-on current sensor, offering convenient and safe on-site wiring, high testing accuracy, rapid response time, and stable performance. The input and output are fully isolated, with isolation voltage exceeding 3KV and a continuous overload capacity twice the rated value, with an instantaneous overload of 20 times for 60 seconds.

III. Technical Performance

1. The characteristics of the 12-way signal connection:

0∽150V AC Voltage, 3 Sets (Stator Secondary Voltage)

0∽750V AC voltage      3 sets      (exciter stator secondary voltage)

0 to 10mA AC Current, 3 Sets (stator secondary current through clamp current sensor)

±75mV DC voltage   2 sets  (generator rotor current)

0 to ±1000V DC Voltage  1 Set  (Generator Rotor Voltage)

2. Precision:

12-way signal accuracy: 0.5 grade

12-bit A/D sampling, 125 kHz rate

3. Response Time: ≤20ms

4. 2 USB ports: Data export for use

5. Startup Method: Manual

Automatic

Power: AC220±10%

7. Instrument Dimensions: 300×220×300

8. Instrument Weight: 5 kg