I. Overview

The Relay Protection Verifier is our company's newly developed generation of verification equipment. The instrument employs new power supply technology for its AC and DC voltage, and current sources, which has elevated its circuit design, component selection, panel layout, and internal structure design to the leading level domestically. The instrument boasts comprehensive functions, high-quality materials, clear test project data, and simple operation, making it the preferred equipment for the power relay protection department.

Technical Indicators, Performance

Work Conditions:

(1) Operating Voltage: AC220V ±10% 50Hz

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

Humidity: ≤85%

Atmospheric Pressure: 86～106 KPa

Output Power:

AC Voltage: 0-220V/3A

(2) AC Current: 0-100A/7.5V

                0～20A/25V

                0～5A/5V

Direct Current Voltage: 0～220V/3A

Direct Current: 0-20A/25V

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

Performance Metrics:

(1) Current and voltage meters: 1/2 digit

(2) Digital Millisecond Stopwatch: 0 ~ 99.9999 seconds

Feature:

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

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

(3) Intermediate Relay: Measures the startup, return, and hold values, as well as the action time, of intermediate relays with both start and hold coils.

(4) Reclosing Relay: Capable of conducting 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-current characteristic tests.

(6) Other various uncommon relays.