| GKC-F Circuit Breaker Mechanical Characteristics Tester |
Darui Electric recommends
Product Introduction:
GKC-F Circuit Breaker Characteristics Tester, with microcontroller as the core for sampling, processing, and output. Its main feature is the use of Chinese prompts for human-machine dialogue operation, Chinese display of results, and print output. It has the advantages of intelligence, multiple functions, accurate data, strong anti-interference, simple operation, small size, light weight, and beautiful appearance. It is suitable for dynamic characteristic testing of various indoor and outdoor low-oil, multi-oil switches, vacuum switches, and SF6 switches.
Product Features:
1. The instrument can automatically identify the opening and closing status of the contacts and prompt the corresponding closing or opening operation based on the reference contact status.
2. Independent 12 contacts can detect and indicate the connection status of the contacts, making it easy for users to check wiring.
3. The instrument can store 50 sets of test results.
4. Large screen LCD (320×240) display, advanced gray screen, no reflection or black screen under sunlight, graphic and Chinese menu operation prompts, user-friendly menu interface, easy to operate.
5. The instrument has powerful graphic analysis functions, enabling simultaneous display of waveforms and measurement data on the same screen, making the test process more intuitive.
6. The instrument has a built-in delay protection function, which automatically cuts off the coil voltage after the circuit breaker operates, effectively protecting the circuit breaker and the test instrument.
7. GKC-F Circuit Breaker Characteristics Tester can perform electric opening/closing tests and manual opening/closing tests.
8. It can perform high and low voltage tests, automatically finding the minimum closing or opening voltage.
9. Reclosing test, can measure parameters such as close-open, open-close, open-close-open, etc.
Working Principle:
Using the four-terminal connection method of loop resistance testing, it actually tests the dynamic resistance during the switching action of the switch, and can be used to test SF6 high-voltage circuit breakers with graphite contacts. The working principle of the dynamic resistance test channel is to load a 10A constant current source on the two terminals of the circuit breaker's graphite contacts, and test the dynamic voltage change waveform within 200mV during the graphite contact action through the other two test signal lines (voltage signals) connected to both ends of the circuit breaker, thereby determining the position of the metal contacts of the circuit breaker, and then inferring the true and exact position of the graphite contacts based on the length of the graphite contacts.
Product Parameters:
1. Time Measurement
Number of contacts measurable simultaneously: ≤12
Setting time for measurement process: 0～6 seconds
Resolution: 0.1ms
2. Measurement of switch opening distance, switch overtravel, and bounce amplitude
Range: ＜1000mm
Resolution: 1mm
3. Measurement Error
Time measurement error: ±1%
Stroke measurement error: ±1%
4. Speed measurement range: 0～20m/s
5. Built-in Power Supply
Output voltage: 20V～230V; Error: 1%
6. Working Conditions
Working voltage: AC220V±10%
Frequency: 50Hz
Power consumption: ≤60w
Operating ambient temperature: 0～40℃
Operating ambient humidity: ≤90%
Volume: 400×350×200mm3
Weight: 7kg
Safety Measures:
1. Please read this manual carefully before using this instrument.
2. The operator of the instrument should have general knowledge of electrical equipment or instruments.
3. This instrument can be used both indoors and outdoors, but should avoid places such as rain, corrosive gases, excessive dust, and direct sunlight at high temperatures.
4. The instrument should avoid severe vibration.
5. Maintenance, care, and adjustment of the instrument should be carried out by professionals.
6. After the test, turn off the power first, then remove the test leads.
7. When measuring on-load tap-changing transformers, be sure to switch the tap after the discharge indicator stops.
8. During the test, do not move the test clips and power supply lines.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
