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The High Voltage Switch Mechanical Dynamic Characteristic Tester is designed based on the latest "High Voltage AC Circuit Breakers" GB1984-2003, and refers to the People's Republic of China electric power industry standard "General Technical Conditions for High Voltage Test Equipment" Part 3, DL/T846.3-2004 as the design basis. It provides convenience for dynamic analysis of various types of circuit breakers and can accurately measure the mechanical dynamic characteristic parameters of high voltage circuit breakers of various voltage levels, such as low oil, multi-oil, vacuum, SF6, etc. High voltage circuit breakers play dual roles of control and protection in the power system, and their performance directly affects the safe operation of the power system. Mechanical characteristic parameters are one of the important parameters for judging circuit breaker performance.
Table of Contents
- 1 Product
- Introduction
- 2 Main Features
- 3 Technical Specifications
- 4 Term Definitions
- 5 Printer Installation Method
Product Introduction
The High Voltage Switch Characteristic Tester is designed by our company based on the latest High Voltage AC Circuit Breakers GB1984-2003, and refers to the People's Republic of China
High Voltage Switch Mechanical Dynamic Characteristic Tester
electric power industry standard "General Technical Conditions for High Voltage Test Equipment" Part 3, DL/T846.3-2004 High Voltage Switch Comprehensive Tester as the design basis. It provides convenience for dynamic analysis of various types of circuit breakers and can accurately measure the mechanical dynamic characteristic parameters of high voltage circuit breakers of various voltage levels, such as low oil, multi-oil, vacuum, SF6, etc., including closing (opening) sequence, maximum closing (opening) time, three-phase non-simultaneity, same-phase non-simultaneity, closing (opening) time, action time, bounce time, bounce count, bounce amplitude, travel, open distance, overtravel, overtravel, just-closing (opening) speed, maximum speed, average speed, gold short time, no-current time, current waveform curve (dynamic), time-travel-speed dynamic curve (ms), time-travel-speed dynamic curve (mm), etc.
Main Features
>Can perform electric operation and manual operation
>Suitable for mechanical dynamic characteristic testing of various high voltage circuit breakers within 500KV voltage level
>Can measure actual travel and custom travel
>Can achieve single close, single open, close-open, close-open-close operations of circuit breakers
>Convenient wiring, simple operation, only one close (open) action is needed to obtain all data of close (open), can choose to save 50 sets of data, provide later query and upload to computer for permanent storage, and can also print all data and motion curves on site
>Built-in clock circuit, can display current year, month, day, hour, minute, second, even if power off, can automatically save setting data and test data
>Built-in delay protection function, after circuit breaker action, can automatically cut off the action power supply, well protecting the circuit breaker equipment and the high voltage switch tester
>Built-in DC power supply, selectable range: 30-270V/10A, no voltage drop at the output instant of conventional rectifier power supply, very accurate for testing switch action voltage
>Can dynamically analyze the relationship between travel, speed of the circuit breaker every 1ms
>Can be configured with upload software to achieve computer archiving and online viewing, printing.
Technical Specifications
>Time test range: 1—499.9ms Resolution: 0.01ms Accuracy ≤0.1ms
>Speed test range: 15ms Resolution: 0.01m/s Accuracy ±1% reading + 2 digits
>Travel test range: Unlimited Resolution: 0.01mm Accuracy ±1% reading + 2 digits
>DC power supply selection range: 25-265V/10A Resolution: 1V Accuracy ≤±1%
>Working power supply: AC220V ±10% Frequency: 50Hz ±5%
>Ambient temperature: -10°C~40°C Relative humidity: ≤85%
>Insulation resistance: ≤2MΩ
>Dielectric strength: Power input to the casing can withstand a withstand voltage test of 1.5KV for 1 minute.
Term Definitions
1. Closing/Opening time: The time interval from the instant the closing (opening) command is received to the instant all pole contacts touch (separate). 2. Closing/Opening simultaneity: The maximum time difference between the instants of contact touch (separation) among the breaks. 3. Bounce time: The time from the first contact (separation) to the final stable contact (separation) of the moving and stationary contacts during closing (opening) operation. 4. Action time: (Contact action time) The time from the instant the closing (opening) command is received to the instant the contacts just start to move. 5. Bounce count: The number of separations (contacts) of the moving and stationary contacts during opening (closing) operation. 6. Bounce amplitude: The maximum rebound value of the moving contact during its movement. 7. Travel: The distance from the initial position to any position of the moving contact during opening and closing operations. 8. Open distance: The total gap between the contacts of one pole or any conductive parts connected between them in the open position. 9. Overtravel: The distance the moving contact continues to move after the contacts touch during closing operation. 10. Over-travel: The difference between the maximum travel during the movement of the moving contact and the travel after stabilization during opening and closing operations. 11. Just-closing (opening) speed: The speed of the moving contact at the instant of contact (separation) with the stationary contact during closing (opening) operation. 12. Average speed: The ratio of the travel to the time during the entire movement of the moving contact in closing (opening) operation. 13. Gold short time: In close-open operation, the time interval from the instant all pole contacts touch to the instant all pole arc contacts separate in the subsequent opening operation.
(1) A-type panel: Please pinch the elastic clips on both sides of the printer frame with your hand, push the entire printer into the mounting hole of the instrument or equipment panel, and check whether the printer is firmly installed. (2) D-type and F-type front paper replacement panel type: Installation is extremely simple and convenient. Please insert the entire printer into the mounting hole of the instrument or equipment panel, clamp the printer from behind the equipment panel with plastic clips and tighten the screws. ◆The general paper loading process is as follows ① Remove the front cover of the printer. ② A-type panel micro printer must be removed from the instrument panel. Note that the micro printer power must be turned off before operation. D-type, F-type front paper replacement panel type and T-type desktop can skip this step. ③ Remove the paper roll shaft, install a new paper roll, put the paper shaft back into the guide slot of the printer, and confirm that the paper roll shaft is firmly installed and will not fall out. ④ Cut the paper end into a triangle or trim it neatly. ⑤ Turn on the printer power, after the printer advances a line of paper, press the SEL key to turn off the SEL indicator, then press the LF key to rotate the print head, manually feed the paper head into the paper inlet below the print head, the paper will slowly enter the print head until it comes out from the front of the print head, then press the LF or SEL key to stop the print head rotation → cover the printer cover, and thread the paper out through the paper outlet of the front cover. ◆Replacing the ribbon cartridge Replacing the ribbon is only for dot matrix printers. Thermal printers only need special thermal paper and do not need to replace (consumables) ribbons. Note: Thermal paper has two sides, front and back, and only the front side can be printed. ◆The process of replacing the ribbon cartridge is as follows ① Open the front cover of the printer. ② First lift the right end of the ribbon cartridge, then lift the left end (the end with the knob) to remove the ribbon cartridge. ③ Gently place the left end of the new ribbon cartridge on the gear shaft of the print head, turn the knob on the ribbon cartridge in the direction of the arrow until the end of the ribbon cartridge falls to the bottom, then put down the right end of the ribbon cartridge. ④ Install the printer cover, first hang the upper part of the front cover on the frame, pay attention to aligning the indicator light and buttons, then press the lower part of the front cover toward the frame with a little force, and snap the front cover onto the frame.
