I. Overview

1. Purpose

HZ5372 high current generator (referred to as the current booster) is a test equipment developed by our company. It combines the advantages of similar products at home and abroad. It adopts numerical control technology and has strong anti-interference ability. Compared with the previous generation of current booster, Due to the use of low-power, large-capacity, self-coupling voltage regulators and high-permeability iron cores, the converter has the advantages of large output power, small size, and light weight. It is mainly used for primary bus protection and various current transformer transformation ratio test items. It is widely used in the scientific research, production and electrical test sites of electric power, railway, petrochemical, metallurgy and mining enterprises.

2. Performance characteristics

◆Use beautiful and generous PVC panel

◆The operation time of the test equipment can be synchronized

◆Automatic recognition of normally open and normally closed contacts

◆Several calibrations can be connected in series at the same time to improve work efficiency

◆Directly display the test values of primary current and secondary current, which is convenient for test observation and recording.

◆High measurement accuracy 0.5 level

◆High power, small size, strong load capacity

Small size and light weight, the volume is only 30% to 70% of similar products, and it is very convenient to carry.

3. Operational aspects

(1) After the wiring is completed, check it again to see if there is a wiring error and whether the connector is in good contact.

(2) During the test, if there is any abnormal phenomenon such as sparking or no display when starting up, turn off the power immediately and recheck the wiring.

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

(4) The current booster comes with random output wires; the output external copper wire is selected according to 10A/mm2. (The standard configuration is two 3m test leads)

(5) The capacity of the equipment is designed for short-time work of 5 minutes. If used for batch test, the working time should be less than 2.5 minutes, wait for 10 minutes before proceeding to the next work. Such as temperature rise (30 minutes-24 hours) should be prepared according to long-term working temperature rise.

II.Technical Features

1. Name and Classification

(1) Name: HZ5372 high current generator.

(2) Environmental group: it belongs to the Ⅲ group of instruments (that can be used in outdoor environment) in GB6587.1-86 "General Outline of Environmental Test of Electronic Measuring Instruments".

2.1 Input voltage: AC220V ±10%

2.2 Power: 5KVA

2.3 Output current: Series: AC0～1000A Parallel: AC00～2000A stepless adjustable, panel with digital display ammeter

2.4 Output voltage: (>10V)

2.5 Output Waveform: The output current is a standard sine wave with tiny burrs, which is better than the power system requirements and standards, and the ripple coefficient is less than 0.3%. Standard sine wave.

2.6 Measurement accuracy: (using 0.2S grade material) is actually around 0.3; each current can be smoothly and continuously adjustable, and the accuracy is higher than 0.5. The current and voltmeter display is a true effective value, with high accuracy and high stability.

2.7 Output current mode: the true effective value is continuously adjustable;

2.8 Current stability: 0.2%

2.9 Structure: One

2.10 Wiring mode: as required

2.11 Protection settings: overcurrent, overvoltage