Sequential Relay Protection Test Instrument

I. Performance Features:

1. Equipped with microcomputer control, the panel features at least 16 touch switches, allowing for convenient execution of various testing functions. It includes self-check and error reporting capabilities for easy inspection and maintenance.

2. Comprehensive self-inspection and self-protection features ensure that the circuit can quickly cut off the output and emit sound and light alerts during overload or excessive range, reducing unnecessary losses caused by misoperation.

3. With intelligence, simply press one button to measure all parameters of a general relay and automatically print all data.

4. The display features functional display units, allowing for a clear reflection of the working status on the screen.

5. All printed data is in Chinese characters, such as "Closing Voltage," "Open Circuit Voltage," "Normally Open Closing Time," etc. (Note: The display uses a digital tube, which does not have printing functionality.)

Technical Specifications:

1. Continuous voltage output: 0-500V adjustable, with a large output capacity of 6000VA, over-range protection at 500V, and an accuracy of ±0.25%.

AC Current Output

0-50A, 0-100A, 0-200A, 0-600A, continuously adjustable.

At 0-50A, the open-circuit voltage is 5V.

At 0-100A, the open-circuit voltage is 10V. Overload protection trips at 300A.

At 0-200A and 0-600A, the open circuit voltage is 10V.

2. Direct Current Voltage Output:

0-320V continuous adjustable, 2A high current, over-range protection at 320V.

Overload protection action current: 2.1A ±5%.

Direct Current Output:

0-200mA, 0-5A, 0-20A continuously adjustable, with an accuracy of ±0.25%.

At 0-200mA, the open circuit voltage is 48V, and the overload protection trips at 230mA.

At 0-5A, the open-circuit voltage is 24V, and the overload protection trips at 5.2A.

At 0 to 20A, the open-circuit voltage is 36V.

4. Fixed Direct Current Voltage Output

Outputting either 110V or 220V, the current can reach up to 2.5A, but with alternating voltage and current,

When outputting DC voltage simultaneously, the total capacity cannot exceed 600VA.

5. Digital Millisecond Stopwatch:

Wide Range: 999 seconds (Note: 99.99S)

Resolution: 0.1 millisecond

Accuracy: 0.1% ± 1 character

6. Instrument Accuracy:

Utilizing a 5.5-bit A/D converter, with an accuracy of ±0.05% reading ±1 digit.

7. Whole Machine Measurement Accuracy: ≤0.25%