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The NX-2000 Variable Ratio Time High Current Generator (abbreviated as current booster), also known as a primary current injection device, is a testing equipment independently developed by our company. Integrating the advantages of domestic and international counterparts, it employs numerical control technology with strong interference resistance. Compared to previous generations, this model features low-power consumption, high capacity through self-shunt voltage regulators and high-permeability iron cores, resulting in superior output power, compact size, and lightweight design. Primarily used for thermal relay testing, motor protector calibration, contactor analysis, air switch verification, switchgear inspection, circuit breaker evaluation, and protection panel calibration, it also performs primary busbar protection testing and ratio measurements for current transformers. Widely adopted in power generation, railway systems, petrochemical plants, metallurgical facilities, and mining operations, this equipment serves as a vital tool for scientific research, production processes, and electrical testing applications.

1. Performance Features

◆ Six-digit LCD display for voltage and current measurement, ensuring higher precision and more accurate experimental results

◆ 4.3-inch industrial-grade resistive screen for intuitive data visualization and faster readings

◆ Instrument display locking function specifically designed for transformer ratio experiments to enable precise and efficient measurements

◆ Automatic polarity detection for transformer polarity measurement without separate testing

◆ Timer with LCD display range 0.1mS to 999999.9mS

◆ Premium PVC panel for enhanced stain resistance and wear durability

◆ High measurement accuracy (0.2 class)

◆ High power output, compact size, and strong load-carrying capacity

◆ Lightweight design with 30%-70% smaller footprint than comparable products, ensuring easy portability

2. Technical Features

（1）Name: NX-2000 High Current Generator.

（2）Environmental category: Classified as Group III instruments under GB6587.1-86 'General Principles for Environmental Testing of Electronic Measuring Instruments' (indicating suitability for outdoor use).

（3）Input AC 50Hz, 220V.

（4）The output provides single-phase AC high current ranging from 0 to 2000A; the current can be smoothly and continuously adjustable with precision exceeding Class 0.2. The output current is a standard sine wave with minimal ripple, surpassing the performance requirements of power systems, and the ripple coefficient is less than 0.3%.

（5）Output current mode: true RMS continuously adjustable;

（6）Output waveform: standard sine wave;

（7）Output opening voltage: 6V.
 （8） Measurement accuracy: (using 0.05-grade materials) actually around 0.2; all currents can be smoothly and continuously adjusted with precision exceeding 0.2 grade. The current and voltage meter displays true effective values, demonstrating high accuracy and stability.

（9）Display: 4.3-inch industrial-grade color resistive touchscreen

（10）Control switch: Touch screen interface switching function

（11）Display current waveform trend increase

（12）The voltage regulator displays output voltage and allows pre-adjustment of output current.

（13）Protection settings: Overcurrent, Overvoltage;

（14）The current action time of the tested component can be measured, and the locking action time can be recorded synchronously. Automatic identification of normally open and normally closed contacts is achieved.

（15）When testing contact samples for non-assisted operations (air circuit breakers or molded case circuit breakers), the automatic test action time can be determined based on the presence or absence of current.

（16）Measurement range: 0.001S to 99999.999S, accuracy: 0.001S   （17）相位：0~360°

  （18）Power: 12KVA

(19)Structure: Split or integrated