Thermal relay calibrator*

Thermal relay calibrator*

Product Introduction

Due to thermal deformation, corrosion, looseness, long-term overload, and other reasons, certain parameters of protective electrical appliances may deviate from their original set values, and in severe cases, they may malfunction or fail to operate. This loses the protective function that the protective device should have. In order to solve the above problems, our company has developed and produced a series of calibration instruments to adapt to different testing fields and environments such as power plants, chemical industry, metallurgy, coal and other industries, laboratories, workshops, etc., to meet the different needs of users. The control technology of * has been adopted in the design, making the instrument easy and convenient to operate during use. The instrument has the characteristics of reliable and stable performance, intuitive and fast readings, accurate test data, simple operation, and convenient use. Users only need to connect the test cable to perform calibration work directly, without the need for additional voltage and current regulators, monitoring current and voltage meters, current and voltage converters, and complex wiring.

Designed according to DL/T623-1999 regulations and actual on-site needs, it has high output current, high accuracy, stable performance, and easy operation. It is suitable for on-site debugging of parameters and testing of devices such as thermal relays.

Thermal relay calibrator*

Technical Indicators:

1. Input AC 50Hz, 220V/380V.
2. 3-phase phase separated output 0-500A AC high current (i.e. single-phase output current), each current can be smoothly, smoothly and continuously adjustable, with an accuracy higher than level 0.5; The output current is a standard sine wave with minimal spikes, and the power system requires standard specifications with a ripple factor of less than 0.3%.
3 can also output 0-500A AC high current (i.e. single-phase output current) through 3-phase phase separation.
4. Output current mode: continuously adjustable
5 Output waveform: sine wave
6 Current Accuracy: All currents can be smoothly, smoothly, and continuously adjustable, with an accuracy higher than level 0.5 The ammeter displays true effective values with high accuracy and stability.
7 can measure the operating current and operating time of various thermal relays and motor protectors both domestically and internationally. And it can synchronously record the locking action time. Automatic discrimination of normally open and normally closed contacts. Time measurement range: 0.001S -9999.999S, accuracy; 0. 001S.
The device has the functions of maintaining lock, recording, and measuring the action current and time values of the tested device.
The design adopts the microcontroller control technology of *, making the instrument easy and convenient to operate during use. Throughout the entire testing process, the performance was reliable and stable, with intuitive and fast readings. The application of high-precision sensors effectively ensures the accuracy of test data. The whole machine testing unit includes: high-precision millisecond meter, true effective value ammeter, current sensor (imported parts), voltage regulator, high-power current booster, microcomputer controller, and other parts.
10. Dimensions: 60 × 40 × 30 (cm)

11. Weight: Depending on the specifications

Technical Documentation

Scope of Application
1. Suitable for testing various types of low-voltage motor protectors and thermal relays.
2. Test whether the motor protector effectively protects during operation.
3. Suitable for laboratory testing of low-voltage motor protection devices.
4. Suitable for manufacturers of motor protectors to conduct product quality verification, factory testing and debugging.
5. Suitable for research and development, experimentation, and teaching in various universities and research institutions.

Functions and Applications

Mainly used as protective devices for electrical equipment, commonly used include motor protector devices, current relays, and thermal relays. Due to thermal deformation, corrosion, looseness, long-term overload, and other reasons, certain parameters of protective electrical appliances may deviate from their original set values, and in severe cases, they may malfunction or fail to operate. This loses the protective function that the protective device should have. In order to solve the above problems, our company has developed and produced a series of calibration instruments to adapt to different testing fields and environments such as power plants, chemical industry, metallurgy, coal and other industries, laboratories, workshops, etc., to meet the different needs of users. The control technology of * has been adopted in the design, making the instrument easy and convenient to operate during use. The instrument has the characteristics of reliable and stable performance, intuitive and fast readings, accurate test data, simple operation, and convenient use. Users only need to connect the test cable to perform calibration work directly, without the need for additional voltage and current regulators, monitoring current and voltage meters, current and voltage converters, and complex wiring.

Designed according to DL/T623-1999 regulations and actual on-site needs, it has high output current, high accuracy, stable performance, and easy operation. It is suitable for on-site debugging of parameters and testing of devices such as thermal relays.

technical indicators

1. Input AC 50Hz, 220V/380V.
2. 3-phase phase separated output 0-500A AC high current (i.e. single-phase output current), each current can be smoothly, smoothly and continuously adjustable, with an accuracy higher than level 0.5; The output current is a standard sine wave with minimal spikes, and the power system requires standard specifications with a ripple factor of less than 0.3%.
3 can also output 0-500A AC high current (i.e. single-phase output current) through 3-phase phase separation.
4. Output current mode: continuously adjustable
5 Output waveform: sine wave
6 Current Accuracy: All currents can be smoothly, smoothly, and continuously adjustable, with an accuracy higher than level 0.5 The ammeter displays true effective values with high accuracy and stability.
7 can measure the operating current and operating time of various thermal relays and motor protectors both domestically and internationally. And it can synchronously record the locking action time. Automatic discrimination of normally open and normally closed contacts. Time measurement range: 0.001S -9999.999S, accuracy; 0. 001S.
The device has the functions of maintaining lock, recording, and measuring the action current and time values of the tested device.
The design adopts the microcontroller control technology of *, making the instrument easy and convenient to operate during use. Throughout the entire testing process, the performance was reliable and stable, with intuitive and fast readings. The application of high-precision sensors effectively ensures the accuracy of test data. The whole machine testing unit includes: high-precision millisecond meter, true effective value ammeter, current sensor (imported parts), voltage regulator, high-power current booster, microcomputer controller, and other parts.
10. Dimensions: 60 × 40 × 30 (cm)

11. Weight: Depending on the specifications