I. Summary

The Relay Protection Tester is a new generation of verification device developed by our company. The internal AC and DC voltage, current sources of this instrument utilize new power supply technology, enabling it to reach the advanced level domestically in circuit design, component selection, panel layout, and internal structural design. The instrument boasts complete functions, excellent material selection, clear test project data, and simple operation, making it the preferred equipment for the power relay protection department.

Technical Indicators, Performance

1. Work Conditions:

(1) Working Voltage: AC220V ±10% 50Hz

(2) Work Environment: Temperature: -10℃ to 40℃

Humidity: ≤ 85%

Atmospheric Pressure: 86-106 Kpa

2. Output Power:

(1) Voltage: 0-250V/3A

(2) Alternating Current: 0-100A/12V

                0～50A/25V

                0～25A/50V

DC Voltage: 0~320V/3A

(4) Direct Current: 0-20A/25V

(5) Fixed Output: DC24V, DC48V, DC110V, DC220V

3. Performance Metrics:

(1) Current and voltage meters: 41/2 digits

(2) Digital Millisecond Stopwatch: 0~99.9999s

4. Features:

(1) Measuring Relays: Capable of measuring the starting value, return value, and return coefficient of current and voltage relays.

(2) Time Relay: Measures the start value, return value, and action time.

(3) Intermediate Relay: Measures the startup value, return value, holding value, and action time of intermediate relays with both starting and holding coils.

(4) Reclosing Relay: Features testing capabilities for capacitor charging, charging time, reclosing time, and intermediate component testing.

(5) Differential Relay: Capable of conducting DC excitation tests, braking characteristic tests, and voltage-current characteristic tests.

(6) Various other uncommon relays.