Product Introduction

       NDXC-Ⅲ Test Transformer Control Box is a specialized supporting equipment independently developed and produced by our company for test transformers. This control box/console features convenient maintenance, excellent performance, safe and reliable operation, aesthetically pleasing and robust structure, durability, and portability. It is an essential device for power supply enterprises, large factories, metallurgical plants, power plants, railways, and other departments requiring electrical maintenance.

Product Features

☆ Voltage, current, time, status information, and prompt data are displayed on a 4.7-inch large LCD screen, ensuring clear and intuitive readability.
☆ Fully Chinese interface with simple and straightforward operation, adaptable to various application scenarios. All functions can be set via buttons, enhancing product safety and reliability.
☆ Fully digital calibration method, eliminating outdated potentiometer adjustments. Extremely convenient for on-site use with easy precision control (password protected).
☆ Direct button setting of test transformer ratio (password protected), allowing flexible application when connecting testers of different voltage levels. One control box can truly match multiple transformers.
☆ Status reminder function with fully Chinese guided operation, enabling proficient control even without a manual.
☆ During testing, a flashing high-voltage symbol appears on the screen, constantly reminding operators to pay attention to safety.
☆ Test result display function, automatically judging test results (pass or fail), and reliably recording the voltage at which the sample experiences overcurrent, flashover, or breakdown.
☆ Audible alarm for test results; the device emits different alarm sounds for pass or fail, allowing operators to directly recognize the result by the sound.
☆ Pause function: In automatic mode, this allows pausing voltage increase or decrease at any point. The pause duration can be flexibly controlled by the operator for observing sample status.
☆ Automatic timing function: In automatic mode, when voltage automatically rises to the set value, the device starts timing automatically. When the time elapses, the test result is displayed, and the device returns to zero automatically.
☆ Manual timing function: In manual mode, the timer can be started manually. When the withstand voltage time ends, the device returns to zero automatically (only available in console-type devices).
☆ Manual control mode: Similar to traditional electric voltage increase/decrease methods, with buttons controlling rise/fall. The device automatically determines upper/lower limits and includes overvoltage protection.
☆ Intelligent voltage rise speed control: When voltage reaches 80% of the target, the rise speed slows automatically; at 90%, it slows further.
☆ Optional remote communication, door interlock warning lights, alarm bells, external voltage divider calibration interfaces, etc.

☆ Combines hardware and software anti-interference technologies for stable performance and strong anti-interference capability.

Technical Parameters

☆ Rated capacity: ≤10kVA (1.5kVA, 2kVA, 3kVA, 5kVA, 6kVA, 10kVA)
☆ Power supply voltage: AC220V ±10%, 50Hz±1 Hz
☆ Input current: 0～50A
☆ Meter voltage: 0～100V (other ranges customizable)
☆ Output voltage: 0～250V
☆ Output current: 0～50A
☆ Voltage measurement accuracy: 0.5%FS ±3 digits
☆ Current measurement accuracy: 0.5%FS ±3 digits
☆ Timing duration: 0～9999 S (special mode allows extended operation)
☆ Operating environment: Ambient temperature 0～50°C, relative humidity ≤85% RH