the SWT-VIIIA   is designed by ourselves.It has many advantages Such as intelligence, multi-function, accurate data, strong anti-jamming, easy Operation, small size, beautiful appearance, etc; It can test the Circuit Breakers as follows: indoors or outdoors Circuit Breakers with less oil or more Oil, vacuum Circuit Breakers, SF6 Circuit Breakers and so on.

Features:

1.    the instrument equipped with a 12-inch LED touch screen, Windows Operating system, general-purpose computer with the use of large-capacity SSDs To store data.

2.    9 contacts channel: Measure 6 main contacts (of which 3 can be used to Measure contacts with the close resistance). Measure the close time, opening Time, non-simultaneity, bouncing time, primary and secondary time. 3 auxiliary Contacts are for measuring the operating time of other related contacts (active Or passive).

3.    7 analog input channels: 3 ways are stroke sensors for measuring switches Stroke, over-travel, rebound, overshoot, etc. Based on these, it can calculate Speeds, etc. The remaining 3 ways are for the operating voltage, current Acquisition channel, real-time recording the switch operation's close open, Charging voltage and current waveforms. Then calculate the power consumption of Closing coil and charging motor.

4.    Users can customize the switching action sequences, close/open duration and the time interval between two operations.

5.    Control methods include internal control (internal synchronization, Internal trigger), external control (external synchronization, external Trigger) and manually control.

6.    Output is controlled by solid-state components with features of high Control precision and long life.

7.    Contact moving speed can be defined by 4 ways: "percentage of Stroke", " percentage of open gap", "time", "stroke", which meets all varieties of speed tests. User can Customize the printing of reports.

8.    Check the print content according to your printing needs and the system Will automatically typeset. Reports include all collected channels waveforms and all test results.

9.    Provides a powerful database function. All tested data can be saved. Provides query capabilities based on different criteria.

10. the instrument comes with a DC power supply, which can meet the precise Voltage regulation requirements. It requires an external power supply for Testing AC.

11. the system has automatic matching envelopes function. Software informs the comparison results automatically.

Advantages:

1,Hardware of the Device is highly consistent with the leading International manufacturers' Product in this field. the basic structure is: General-purpose computer main board + data Acquisition card + input signal Processing module + output Control.  and because of advances in Components conditions, Certain Parameters are with international advanced Level. 

2. Data acquisition Card is our self-developed Multi-functional high-precision Data acquisition Card. 
3. Input Signal processing Module will condition and isolation 5000v isolation Input Signal to ensure there is no crosstalk between signals.

4. Output is controlled by the AC and DC combined output mode with Reliable protection against over-voltage arisen by inductive loads to ensure High-speed, Reliable and solid output. 
5. Windows System software controls the entire process of data Management and Post-tests. Use large touch-screen operator interface, easier to use.

7. Users can customize the action sequences of the switch. Interval between two actions and coil energized hold time can be set.

8. Charging Time, charging Circuit power consumption and control loop power Consumption of the test sample can be tested and calculated.

9. the Instrument is equipped with three sensors can be measured at the Same time three-way travel.

10. There is envelope automatic matching function. Software will identify The comparison Results.

11. Report can be printed with user defined Settings with automatic Typesetting.

Main technical parameters

Voltage Regulating tolerance during testing: <1% (full scale)

Close (opening) time: 0 ~ 40000ms     Time Resolution: 0.033 ms

Speed Measuring range: 0 ~20 m/s     Resolution:0.01m/s

Travel Measuring range: 0 ~ 9999mm    Resolution:0.01mm 

Accuracy: Sensor total length / (2¹⁴-1) m/s

Coil Current test range: 0 ~15 A(for standard product)

Coil Current waveform amplitude accuracy: ≤0.1%

DC Power output:10V~270V/10A

Allow External power supply:(DC/AC)0V~300V/10A

Working Power supply:AC220V±10%,50Hz

Working Condition: Ambient temperature:-10 ℃~ 50 ℃, humidity range <85%