I. Overview

The Relay Protection Tester is a newly developed verification device by our company. The instrument employs new power supply technology for its AC and DC voltage, and current sources, which has elevated the circuit design, component selection, panel layout, and internal structure design to the advanced level domestically. The instrument boasts comprehensive functions, superior materials, clear test project data, and simple operation, making it the preferred equipment for the power relay protection department.

Technical Indicators, Performance

1. Working Conditions:

Power Supply: AC220V ±10% 50Hz

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

Humidity: ≤85%

Atmospheric Pressure: 86-106 Kpa

2. Output Power:

AC Voltage: 0～250V/3A

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

                0～50A/25V

                0～25A/50V

Direct Current Voltage: 0~320V/3A

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 Relay: Capable of measuring the starting value, return value, and return coefficient of current and voltage relays.

(2) Time Relay: capable of measuring the startup value, return value, and action time.

(3) Intermediate Relay: Capable of measuring the starting value, return value, holding value, and operating time of intermediate relays with both start and hold coils.

(4) Reclosing relay: capable of performing capacitor charging tests, charging time, reclosing time, and intermediate component testing.

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

(6) Various other uncommon relays.