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transformer on-load tap-changer tester

transformer on-load tap-changer tester
Product name:transformer on-load tap-changer tester
Item:6-17
Details:
 

I Description

Power transformer on-load tap-changer tester is an integrated testing instrument for measuring and analyzing electrical specifications of transformer on-load tap-changer in the power system.

By computer control, via specially designed measuring circuit, it may measure tap-changer’s transition time, transition wave, transition resistance and three-phase synchronism, etc.

According to requirement and site condition, it can measure directly through down-leads of tap-changer or through wires directly connecting to three-phase bushings and neutral point.

This testing instrument can analyze, save and print test data, may find out potential malfunctions of tap-changer during preventive tests or overhaul on power transformers.

II Main features       

1)      640x480mm big size colorful LCD, intuitionistic interface, high automation, suitable for site work

2)      Built-in industrial control system, Windows operating system, supporting key board and mouse.

3)      Has data management function, 1G save capacity, two USB interfaces

4)      Special management software, can manage, query, compare, list, report and print history data.

5)      Three separate constant current charging

6)      Measuring three currents and three voltage simultaneously, dynamically displaying waves

7)      Test data can be stuck with date/time label and filed.

8)      Small size, light weight, portable for site working without laptop support.

III Main technical data

1)      Three-phase constant current charging, charging current: 1A grade 1.0±0.15A; 0.5A grade 0.5±0.05A

2)      Terminal max. voltage: 1A grade 14V±3V; 0.5A grade 30V±3V;

3)      Transition resistance max. range: 50Ω

4)      Transition resistance measuring range: 1A grade 1Ω10Ω; 0.5A grade 10Ω50Ω

5)      Waves recording duration: 240ms

6)      Sampling speed: 10k

7)      Synchronization measurement resolution: 0.1ms

8)      Ambient condition: -1040℃, RH <85%

9)      Accuracy: transition resistance ±5% reading ±0.1Ω; transition time ±1% reading ±1mS

10)  Dimension: 400×338×225mm

11)  Weight: 10kg

 

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