I. Overview 

1. Use

500A Primary Current Injection Tester, referred to as (current riser), our company developed the test equipment, it sets the advantages of similar products at home and abroad in a body, 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 self-coupling voltage regulator and high permeability of iron core converter, with large output power, small volume, Light weight and other advantages.Mainly used for primary busbar 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. Performance characteristics  

(1)  The use of beautiful and generous PVC panel

(2)  Direct display of primary current, secondary current test value, easy to

observe and record the test.

(3)  The secondary measurement of the transformer, ratio, polarity display at the

same time

(4)  The measurement accuracy is 0.5 level higher

(5)  Large power, small size, strong load capacity

(6)  Small size, light weight, the volume is only 30% ~ 70% of similar products,

it is very convenient to carry.

II. Technical Characteristics 

1. Name and classification  

（1）Name: 500A Primary Current Injection Tester.

（2）Environment group: GB6287.1-86 "electronic measuring instruments environmental test General Program" in the Ⅲ group of instruments (can be in the outdoor ring

     Environment use).

（3） Input voltage: AC220V ±10%

（4）Power rate: 3KVA

（5） AC 0 ~ 500A stepless adjustable, panel with digital display ammeter

（6） Output voltage: 5V

（7） Output waveform: the output current is the standard sine wave, tiny burr, better than the power system requirements of the index standard, ripple coefficient is small

                   At 0.3%.Standard sine wave.

（8） Measurement accuracy: (0.2S grade material) actually about 0.3;Each current can be smooth and continuous adjustable, high accuracy

        At 0.2, the current voltmeter is displayed as the true and effective value, with high accuracy and stability.

（9）Output current mode: true effective value continuous adjustable;

（10）Current stability: 0.2%

（11）Structure form: integrated

（12）Wiring mode: according to the requirements

（13）Protection Settings: over current, over voltage;

 2. Operation

（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 should be turned off immediately and recheck the wiring.

（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/mm2.

（5）The capacity of the equipment is designed according to the short-time work of 2 minutes. If used for batch test, the working time should be less than 2.2 minutes. Wait for 10 minutes before the next work.If the temperature rise is done (30 minutes -24 hours), it should be prepared according to the long-term working temperature rise.