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Three-Phase High Current Generator Dari Electric recommends (referred to as three-phase current booster), a testing device independently developed by our company, which integrates the advantages of similar products at home and abroad, adopts numerical control technology, has strong anti-interference ability, and compared with the previous generation of current boosters, due to the use of low-power consumption, large-capacity auto-transformer and high-permeability iron core transformer, it has the advantages of large output power, small size, and light weight. Mainly used for calibration of thermal relays, motor protectors, contactors, circuit breakers, air switches, switch cabinets, circuit breakers, and protection panels. II. Performance Characteristics, ◆ Adopts beautiful and generous PVC panel ◆ Directly displays primary current, convenient for test observation and recording. ◆ High measurement accuracy 0.2 class ◆ Large power, small size, strong load capacity ◆ Small size, light weight, only 30% to 70% of the volume of similar products, very convenient to carry. III. Usage Method (1) After wiring, check once to see if there are any wiring errors and whether the connectors are in good contact. (2) During the test, if there is arcing, or any abnormal phenomenon such as no display when starting up, immediately turn off the power and recheck the wiring. (3) In actual wiring, the current output terminal should form a loop, otherwise the instrument will not output current. (4) This current booster comes with random output wires; external copper wires should be selected according to 10A/mm2. (Standard configuration is two 3-meter test leads) (5) The capacity of this equipment is designed for short-term work of 5 minutes. If used for batch testing, the working time should be less than 2.5 minutes, and wait for 10 minutes before the next operation. If doing temperature rise tests (30 minutes to 24 hours), it should be configured according to long-term working temperature rise. IV. Technical Characteristics 1. Name and Classification (1) Name: Three-phase high current generator. 2.1 Input voltage: AC 380/220V 50Hz Three-phase four-wire 2.2 Power: 20KVA 1*3 units 2.3 Output current: AC0～20000A (can be customized in sections) Stepless adjustable, panel with digital ammeter 2.4 Output voltage: >6V 2.5 Output waveform: The output current is a standard sine wave with minimal burrs, better than the standard required by the power system, with a ripple coefficient of less than 0.3%. Standard sine wave. 2.6 Measurement accuracy: (using 0.2S class materials) actually around 0.3; each current can be smoothly and continuously adjusted, with accuracy higher than 0.5 class. The current and voltage meters display true effective values, with high accuracy and stability. 2.7 Output current mode: True effective value continuously adjustable; 2.8 Current stability: 0.2% 2.9 Structure form: Integrated or split 2.10 Wiring method: According to requirements 2.11 Current stability: 0.2%; 2.12 Protection settings: Overcurrent, overvoltage |
