KJC-II High Voltage Switch Mechanical Characteristics Tester

KJC-II High Voltage Switch Mechanical Characteristics Tester

1 Overview:

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.High voltage switch comprehensive characteristic testerThe high-voltage switch mechanical characteristic tester is based on the "High Voltage AC Circuit Breaker"GB1984-2003As the design blueprint, refer to the Chinese power industry standard "General Technical Conditions for High Voltage Testing Equipment"3part,DL/T846.3-2004As a design basis, it provides convenience for dynamic analysis of various types of 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. 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.

2、 Instrument features:

⑴Suitable for domestic and international productionSF6switchGISCombination electrical appliances, vacuum switches, oil switchesVacuum contactors, special circuit breakers (train circuit breakers)At the same time, it can be measured12Road metal contact fracture6Road owner's fracture and6Road auxiliary fracture. Once the circuit breaker is activated, the time, number of bounces, time, speed, coil current, andcoilResistance and other data and waveforms. Equipped with energy storage and automatic functionsandManual low jump test, circuit breaker life testand(Optional locking power supply and dry contact control)waitFunction. Equipped with a high-speed thermal printer, it is convenient to print test data on site.

⑵、7Inch color high brightness screen(Adjustable brightness)The operation under the sun is also clearly visible. Menu based operation, quick testing interface, one click operation, supports both Chinese and English input.12The status of the road break is displayed in Chinese, with time, travel, speed, and waveform displayed on the same screenNo need to flip through pages to view data.analyzeThe average speed of the segment is marked on the travel curve for easy viewing. Built in 21plantroutineType circuit breaker speed definition, simply select the switch type and measure with one click.

⑶Integrated operation power supply inside the machine, no need for on-site secondary power supply, easy and fast to use. can provideDC20～270VAdjustable power supply, current20AEquipped with short-circuit protection function, in the event of a short circuit,1msStop the voltage and current output, emit a beep alarm sound, and prompt the operator to check the circuit. *The dual circuit power supply design, if one of the control circuits for closing or opening is damaged, the other circuit can also be used for testingClosing and Opening.

⑷Equipped with linear sensors, rotation sensors, and dedicated fixed multifunctional joints, the installation is extremely convenient and simple. Linear sensor30-1000mmThe length can be set arbitrarily, just equip the sensor, and the instrument does not need to be returned to the factory to change the program.

⑸The host can store100Present experimental data and real-time clock inside the machine for easy archiving.

⑹Equipped withUDisk interface andR232Interface, data saved toUUpload the disk to the computer for analysis, saving, and printing,R232The interface can be connected to a computer for online operation(Optional function).

⑺The internal anti-interference circuit can meet the requirements500KVReliable use within the substation.

KJC-II High Voltage Switch Mechanical Characteristics Tester

IIIMain technical parameters:

1Time measurement:

12Inherent opening (closing) time of the road

Opening (closing) at different stages within the phase

The difference between the opening (closing) phases and different periods

Closing (opening) bounce time (number of bounces)

Internal trigger test scope:0.01ms～10000msResolution:0.01ms,

External trigger test scope:0.01ms～20000ms，

999msInternal resolution:0.01ms,1000-9999msResolution:0.1ms,10000msThe above resolution:1ms.

at200msInternal accuracy:0.05%±1a character

2Speed measurement: just opened (just closed) speed

Average speed during time period (travel or angle period)

3. Speed measurement range:1mmSensors0.01～25.00m/s，

0.1mmSensors0.001～2.50m/s

360°Angle sensor1frequency/ 0.25°

4Travel measurement: Moving contact travel (travel)

Contact distance (opening distance)

overstroke

Overstroke or rebound travel

5. Measuring range:Linear sensor:50mmMeasurement range:0-50mm, Resolution:0.1mm.

Optional100-1000mmA linear sensor of any length.

Rotation sensor：345AboutRotation sensor, measurement range:0-1000mm, Resolution01About.

6. Current resistance range: maximum current30A,Resolution:0.01A, resistance1000ΩResolution:0.01Ω.

7．instrumentpower supply ：AC 220V ± 10%；50Hz ±10%

8DC power output:DC20～270VContinuously adjustable,DC110V≤30A(Short term),DC220V≤ 20A(short-term)Power:4400W.

9. External trigger voltage:AC/DC10-300V, current≤120A

10.Measurement range of isolating switch or energy storage circuit breaker:

⑴Voltage output:DC20～270V(Adjustable);

⑵Power output time:0.01-10Seconds (adjustable);

⑶The maximum acquisition time for fracture signal is10Seconds;

⑷Measurable fracture opening and closing time, three-phase different periods, bounce time and frequency

11．Host volume:360×260×170mm

12Usage environment:-20℃~+50℃

13Relative humidity:≤90%

4Definition of terms:

AThree phase different periods: Refers to the maximum and minimum difference between the opening (closing) times of the three phases of the switch.

BSame phase, different periods: Refers to the opening (closing) time difference of switches with six or more fractures in the same phase fracture.

CBouncing time: refers to the cumulative time value of all contacts and separations (i.e. bouncing) that occur between the moving and stationary contacts of a switch during the closing process (i.e. the time between the first contact and the * contact).

DOpening time: The time interval from the moment when the circuit breaker is in the closed position is disconnected and energized to the moment when all the arc contacts of each pole are separated.

EClosing time: The time interval between the energized moment of the closing circuit and the moment when all contacts of the poles are in contact for a circuit breaker in the open position.

FReclosing time: The time interval from the start of the opening time to the moment when all pole contacts make contact during the reclosing cycle.

GJust open (close) speed: refers to the average speed within a certain time or distance when the moving contact of the switch comes into contact with the stationary contact10msFor example, for disconnection, it refers to the situation after disconnection10msThe average speed inside, for closing, is the closing speed10msThe average speed inside.

HOpen distance: refers to the distance from the open state of the switch to the moment when the moving contact and the stationary contact just make contact.

IMaximum speed of opening (closing): refers to the maximum value of the instantaneous speed of opening (closing) the switch. Generally speaking, this value should appear in the section where the switch is just opened or closed, which can be judged from the speed and stroke curves.

JAverage speed of opening (closing): refers to the ratio of the travel and time of the switch moving contact during the entire action process.