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KDJD-RX Three-Phase Thermal Relay Tester | 300A Automatic Relay Test Set
KDJD-RX Three-Phase Thermal Relay Tester | 300A Automatic Relay Test Set

KDJD-RX Three-Phase Thermal Relay Tester | 300A Automatic Relay Test Set

Applications:

The KDJD-RX Three-Phase Thermal Relay Tester is a specialized instrument designed for the calibration and maintenance of thermal overload relays in low-voltage electrical systems. It is widely used in industrial plants, power distribution stations, and equipment manufacturing facilities. This device is essential for verifying the operating characteristics, pickup current, dropout current, and time-delay functions of three-phase thermal relays. Its high-current output capability makes it suitable for both preventive maintenance in substations and quality control testing in production environments.

  • Response within
    24 hours

  • Free warranty
    12 month

  • On-line training
    Support

Profile:

The KDJD-RX is an advanced, fully automatic high-current detection device developed by Wuhan Kaidizhengda Electric Co., Ltd. Engineered with a dedicated system control board and a Weinal (Human-Machine Interface) touch screen, this tester provides a user-friendly platform for precise relay calibration. The device supports both manual and automatic operation modes, allowing technicians to easily set current values, view historical data, and perform timed tests. Designed with a robust safety system including over-current protection and emergency stop functions, the KDJD-RX ensures reliable and safe operation during prolonged testing cycles.

Features:

  • Large Current Output: Capable of delivering a maximum output current of 300A, suitable for testing a wide range of thermal relays.
  • Touch Screen Interface: Features a large-screen LCD touch display with a clear, intuitive interface that supports both touch and button operation for quick and easy control.
  • Dual Control Modes: Offers both Automatic Mode (for programmed current output and timing) and Manual Mode (for traditional knob-style control), providing flexibility for different testing scenarios.
  • Smart Timing Function: Built-in automatic timer with a wide range (up to 999 hours, 59 minutes, 59 seconds) that starts and stops synchronously with the test, ensuring accurate time-delay measurements.
  • Pause Function: Unique pause feature allows users to halt the current ramping process at any point during automatic control, facilitating observation of the test specimen's status.
  • Digital Calibration: Utilizes a full-digital calibration method, eliminating the need for potentiometers and ensuring high accuracy and stability of the output.
  • Data Management: Equipped with a USB interface to export historical test records, enabling further data analysis and report generation using software like Excel.
  • Safety Protection: Integrated with over-current protection, emergency stop button, and automatic zero-return function to protect both the device and the operator.

Parameter:

The technical specifications of the KDJD-RX are defined by its high-power output and precise measurement capabilities.
  • Rated Capacity: 1KVA.
  • Input Voltage: AC 380V ±10%, 50Hz ±1Hz.
  • Input Current: AC 0~2.6A.
  • Output Voltage: AC 0~3V.
  • Output Current: AC 0~300A.
  • Voltage Measurement Accuracy: 0.5% FS ±3 digits.
  • Current Measurement Accuracy: 0.5% FS ±3 digits.
  • Timing Range: 0 ~ 999H 59M 59S.
  • Display: TFT Touch Screen (Supports Chinese/English languages).
  • Control Method: PLC + Touch Screen.
  • Operating Environment: Indoor use, avoid moisture and explosive atmospheres.

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Kaidi Zhengda Electric
Kaidi Zhengda

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Email: kaidizhengda@gmail.com

Phone：+852 5745 8949

Address：4th Floor, Building 12, No. 88, Huanhu Middle Road, Dongxihu District, Wuhan City, Hubei Province, China

+86-027-83551828

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