High voltage switch dynamic characteristic tester

With the development of society, people have increasingly high requirements for the safety and reliability of electricity use. High voltage circuit breakers play a dual role in 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 the performance of circuit breakers.GKC-F typeHigh voltage switch dynamic characteristic testerThis is based on the design blueprint of "High Voltage AC Circuit Breaker" GB1984-2003 in our factory, referring to the Chinese power industry standard "General Technical Conditions for High Voltage Testing Equipment" Part 3, and DL/T846.3-2004 High Voltage Switch Comprehensive Tester as the design basis. It provides convenience for dynamic analysis of various circuit breakers and can accurately measure the mechanical dynamic characteristic parameters of low oil, high oil, vacuum, sulfur hexafluoride and other high voltage circuit breakers of various voltage levels.

GKC-F typeHigh voltage switch dynamic characteristic testerFunction and Features
2.1 Testing Function
(1) Closing (opening) sequence (12) overtravel
(2) Close (open) the switch for the longest time (13) and over travel
(3) Three phase different stages (14) rigid closing (opening) speed
(4) Same phase, different periods (15), maximum speed
(5) Closing (opening) time (16) average speed
(6) Action time (17) Gold short time
(7) Bounce time 18) No flow time
(8) Bounce times (19) Current waveform curve (dynamic)
(9) Bounce amplitude (20) Time travel speed dynamic curve (ms)
(10) Travel (21) Time Travel Speed Dynamic Curve (mm)
(11) Open distance
All units are: time ms, speed m/s, distance mm
2.2 Characteristics
(1) Can be operated electrically or manually;
(2) Mechanical dynamic characteristic testing of various high-voltage circuit breakers suitable for voltage levels up to 500KV;
(3) Can measure and customize travel itineraries;
(4) Capable of performing single closing, single opening, closing/opening, reclosing, and re opening operations on circuit breakers;
(5) Easy to connect, simple to operate, only one closing (opening) action is needed to obtain all closing (opening) data. You can choose to save 50 sets of data, provide later query and upload to the computer for saving, and also access and print all data and motion curve graphs on site;
(6) Using Chinese character prompts to operate through human-machine dialogue;
(7) Accurate data, strong anti-interference ability, small size, light weight, and beautiful appearance;
(8) The machine is equipped with a clock circuit that can display the current year, month, day, hour, minute, and second. Even if there is a power outage, it can automatically save the set data and test data;
(9) The machine is equipped with a delay protection function, which can automatically cut off the power supply after the circuit breaker is activated, effectively protecting the circuit breaker equipment and high-voltage switch tester;
(10) The instrument is equipped with a built-in DC power supply, with a selectable range of 30-270V/10A. There is no instantaneous voltage drop in the output of conventional rectifier power supplies, making it very accurate for testing switch action voltage
(11) Can dynamically analyze the relationship between the stroke and speed of the circuit breaker every 1ms for you;
(12 configurable upload software for computer archiving, online retrieval, and printing.).

technical indicators
Environmental group: Belongs to Group V instruments in GB6587.1-1986 "General Principles for Environmental Testing of Electronic Measuring Instruments"
Type: Portable Packaging: Aluminum Alloy Box
Size and weight:
Host: 440 × 300 × 150 (mm) 5 (kg)
Attachment: 440 × 300 × 80 (mm) 3 (kg)
Working power supply: AC220V ± 10% Frequency: 50Hz ± 5%
Environmental temperature: -10 ° C~40 ° C Relative humidity: ≤ 85%
Insulation resistance: ≤ 2M Ω
Dielectric strength: The power supply incoming line can withstand a withstand voltage test of 1.5KV for 1 minute on the casing.
Time testing range: 1~499.9ms Resolution: 0.01ms Accuracy ≤ 0.1ms
Speed test range: 15m/s Resolution: 0.01m/s Accuracy ± 1% Reading+2 words
Travel test range: unlimited resolution: 0.01mm accuracy ± 1% reading+2 words
DC power supply selection range: 25-265V/10A Resolution: 1V Accuracy ≤± 1%

Term definition
1. Union Time division:
The time interval from the moment of receiving the closing (opening) command to the moment when all pole contacts are in contact (separated)
2. Cooperation Simultaneous analysis:
The maximum time difference in the moment of contact (separation) between the contacts of each fracture.
3. Bounce time:
The time from the first closing (separation) of the moving and stationary contacts of the switch to the stable closing (separation) after the last closing (separation) operation.
4. Action time: (contact action time)
The time from the moment of receiving the closing (opening) command to the moment when the contact just moves
5. Bounce frequency:
The number of times the moving contact and the stationary contact of the switch are separated (closed) during the opening (closing) operation.
6. Bounce amplitude:
The maximum rebound value of the moving contact during the movement of the switch moving contact
7. Schedule:
The distance between the starting position of the switch moving contact and any position during opening and closing operations.
8. Opening distance:
The total gap between the contacts of one pole of the switch or any conductive parts connected to them when dividing positions.
9. Overtravel:
The distance that the moving contact continues to move after the switch contact makes contact during the closing operation.
10. Travel itinerary:
The distance difference between the maximum stroke and the stable stroke of the switch moving contact during the opening and closing operation
11. Closing (opening) speed:
The instantaneous movement speed of the moving contact and the stationary contact during the process of closing (opening) the switch
12. Average speed: The ratio of the travel time of the moving contact during the entire movement process of the switch on/off operation.
13. Short term gold:
The time interval from the moment when all poles and contacts make contact to the moment when the arc contacts separate in all poles during the subsequent opening operation.
5、 Panel structure
1. Panel structure (Figure 1)

6、 Connection of fracture line
6.1 Connection of fracture lines
This instrument can simultaneously measure six mechanical characteristic parameters of the fracture surface.
(1) Single break wiring
Connect one end of the switch (three contacts) to the signal input terminals of instruments A, B, and C, and connect the other end to any instrument
Common terminal of the device (fracture signal input) (Figure 2)

2) Double break connection
Connect one end of the switch (six contacts) to the A-C 'fracture signal input terminal of the instrument, and connect the other end to the instrument at any time
Common terminal of the device (fracture signal input) (Figure 3)

Figure 3
6.2 Connection of closing and opening signal lines
(1) Spring mechanism (Figure 4)

(2) Electromagnetic mechanism (Figure 5)

7、 Selection of sensors
7.1 Linear Resistance Sensor (CWY30-2K Type) Linear Displacement: 1-30mm
Applicable object: Vacuum circuit breaker
Distance range:<30mm Error: 0.1mm
Speed: ≥ 5m/s Error: 0.1m/s
7.2 Angular displacement sensor (WDS65-1K type)
Applicable object: SF6 circuit breaker angular displacement: 180o
Distance range: Custom resolution: 0.1o
Speed: ≥ 15m/s Resolution: 0.1%
7.3 Auxiliary Contact Points
Installation of auxiliary contacts:
(1) Auxiliary contact points; It must be installed on the moving contact end of the switch or on the bracket led out from the moving contact end of the switch.
(2) The function of auxiliary contacts; It is used to record the start and end times of closing and opening
7.4 Key points to note during installation:
(1) The coaxiality error between the axis of the moving contact and the axis of the sliding rod is ≤ 0.2mm.
(2) Try to use the middle position of the sensor to determine the opening and closing position of the contact, so that the travel of the moving contact is included in the travel of the sliding rod, leaving a buffer margin when the sliding rod moves up and down.
(3) The installation should be firm and reliable, and during testing, the sensor body and switch body should not produce relative displacement.
(4) Sensors are precision electronic instruments, so please pay attention to waterproofing and dust prevention in all parts, and try to keep them dry and clean as much as possible.
8、 Use of printer
１. Self inspection:
Turn off the printer power, press and hold the SEL button to turn on the printer power, and the printer enters self-test, printing out the self-test list
2 . Run
Turn on the printer power, and the printer will enter standby mode after three dots of paper feed At this time, the indicator light is on, indicating that the printer can receive data from the printer interface for printing
In the standby state, press the button once (within 1 second), the indicator light will turn off, and enter the offline state Press the button again (within 1 second), the indicator light will turn on and enter standby mode In offline mode, the printer is in a busy state and cannot receive data. Regardless of whether the light is on or off, press and hold the button for more than 1 second before the printer starts to feed. The indicator light will turn off when feeding.
Press the button during the printing process, and the printer will pause printing after completing the current line, entering offline mode with the indicator light off. Press the button again (within 1 second) to enter online mode and continue printing; When the printer is paused, press and hold the button for more than 1 second to start the paper feeding operation.
3 . Change paper:
Flip down the front cover of the printer, turn on the printer power, and the printer will enter standby mode after three dots of paper feed. At this time, the indicator light will be on. Press the button once, the indicator light will turn off, then hold down the button for more than 1 second, and the printer will start feeding paper; Or simply press and hold the button for more than 1 second, and the printer will start feeding paper. After cutting the front end of the printing paper into a triangle, push the printing paper into the printer feed port, and the printing paper will be rolled in by the printer. When the printing paper extends a section from the paper outlet above the printer head, press the button once to stop the paper feeding and automatically enter the standby state with the indicator light on. Gently pinch the two ends of the elastic paper shaft to load the paper roll on the shaft holder.