I.Overview

1.Purpose

The HZDL-1000A three-phase high current generator (referred to as three-phase current regulator) is a testing equipment independently developed by our company. It combines the advantages of similar products at home and abroad, adopts CNC technology, and has strong anti-interference ability. Compared with the previous generation of current regulators, it has the advantages of large output power, small size, and light weight due to the use of low-power, high-capacity electronic voltage regulators and converters made of high permeability iron cores. It has the advantages of high output power, small size, and light weight. Mainly used for thermal relays. Mainly used for thermal relays, motor protectors, contactors, circuit breakers, air switches, switchgear, circuit breakers, and protection screen calibration.

2.Performance Characteristics

 Adopting beautiful and elegant PVC panels

 Directly display the primary current for easy observation and recording during testing.

 High measurement accuracy of 0.5 levels.

 High power, small size, and strong load capacity.

 Small in size and light in weight, the volume is only 30% to 70% of that of similar products, making it easy to move.

3.Operation

（1）After wiring is completed, it should be checked again to see if there are any wiring errors and if the connectors are in good contact.

（2）During the testing process, if there is any ignition or any abnormal phenomena such as no display during startup, the power should be immediately turned off and the wiring should be rechecked.

（3）In actual wiring, the current output terminals should form a loop, otherwise the instrument will not output current.

（4）This converter comes with a random output wire; The output external copper wire should be selected according to 10A/mm2.

（5）The capacity of this device is designed for short-term operation of 1 minute. If used for batch testing, the working time should be less than 2.5 minutes. Wait for 10 minutes before proceeding to the next operation. If conducting temperature rise (30 minutes to 24 hours), it should be prepared according to long-term working temperature rise.

II.Technical Characteristics

1.Name and Classification

（1）Name: HZDL-1000A three-phase high current generator.

（2）Environmental group: belongs to Group III instruments in GB6587.1-86 "General Principles of Environmental Testing for Electronic Measuring Instruments" (which can be used in outdoor environments).

2. 1 Input voltage: AC 380/220V 50Hz three-phase four wire

2. 2 Power: 5KVA 1 * 3 3-phase 5KVA per group

2. 3 Output current: AC0~1000A stepless adjustable, panel with digital display ammeter

2. 4 Output voltage: 5V

2. 5 Output waveform: The output current is a standard sine wave with small burrs, which is better than the required indicators of the power system. The ripple coefficient is less than 0.3%. Standard sine wave.

2.6 Measurement accuracy: (using 0.2S grade materials) is actually around 0.3; Each current can be smoothly, steadily, and continuously adjustable, with an accuracy higher than 0.5 level. The current and voltage meter displays true and effective values, with high accuracy and stability.

2.7  Output current mode: True RMS continuously adjustable.

2.8  Current stability: 0.2%

2.9  Structural form: integrated

2.10 Wiring method: according to requirements

2.11 Current stability: 0.2%

2.12 Protection settings: over-current, over-voltage