I. Overview

1. Use

HZ-5371L high current generator (referred to as the current riser), our company developed its own test equipment, it sets the advantages of similar products at home and abroad in one, the use of numerical control technology, strong anti-interference ability, and the previous generation of current riser, due to the use of low power consumption, large capacity of autoregulator and high permeability of the core converter, with large output power, small size, Light weight and other advantages. Mainly used for thermal relay, motor protector, contactor, breaker, air switch, switch cabinet, circuit breaker, protective screen calibration; Used for primary bus protection and various current transformer ratio test projects, is widely used in electric power, railway, petrochemical, metallurgy and mining enterprises scientific research, production and electrical test site.

2. Main functions

◆Output 0 to 1000A current

◆ Can synchronize the operation time of the test equipment

◆ Automatic identification of normally open and normally closed contacts

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

◆ Direct display of primary current, secondary current test value, easy to observe and record the test.

  3.Performance characteristics

◆6 and a half display, the display accuracy is higher, the experimental results are more accurate

◆ Large screen LCD display, display data more intuitive, faster reading

◆ Instrument display locking function, especially for the transformer change than the test can be more accurate and faster degree

◆ The use of beautiful and generous PVC panel, make the panel more resistant to dirt and wear

◆ High measuring accuracy 0.5

◆ Large power, small size, strong load capacity

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

4.Operational attention

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

(2) During the test, if there is a spark, and no abnormal phenomenon such as any display when starting, the power supply should be turned off immediately and the wiring should be checked again.

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

(4) The current riser with random output wire; The output external copper wire is selected by 10A/mm100. (Two 1 meter test lines are standard)

(5) The capacity of the equipment is designed according to the short-time work of 5 minutes, such as for batch tests, the working time should be less than 5 minutes, and then the next work. If the temperature rise is done (30 minutes -24 hours), it should be prepared according to long-term working temperature rise.

II. Technical Characteristics

1. Name and classification

(1) Name: HZ-5371L Primary Current Injection Tester.

(2) Environmental group: Group III instruments in GB6587.1-86 "General Outline of Environmental Test for Electronic Measuring Instruments" (can be used in outdoor environment).

(3) Input AC 50Hz, 220V.

(4) Output single-phase 0-1000A AC current; The current can be smoothly and continuously adjustable, the accuracy is higher than 0.1 level;

The output current is the standard sine wave, the burr is small, better than the power system requirements indicator standard, ripple system

The number is less than 0.3%.

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

(6) Output waveform: standard sine wave;

(7) Output opening voltage: 5-6V.

(8) Current accuracy: Each current can be smoothly and continuously adjustable, and the accuracy is higher than 0.5. The current voltmeter is displayed as the true effective value, with high precision and high stability;

(9) Current stability: 0.1%;

(10) Current waveform distortion: THD 1%;

(11) Protection Settings: overcurrent, overvoltage;

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

(13) Measuring range: 0.0001S --9999.9999S, accuracy: 0.0001S

(14) Power: 5000VA