XZT7111 High Voltage Circuit Breaker Tester
I. Product Overview
The XZT7111 High-Voltage Circuit Breaker Analyzer (also known as the Circuit Breaker Mechanical Characteristics Tester) is designed in strict compliance with the latest national standard "High-voltage alternating-current circuit-breakers" GB1984-2003 and the Power Industry Standard of the People's Republic of China "General technical specifications for high-voltage test equipment - Part 3" DL/T846.3-2017. This instrument facilitates the dynamic analysis of various circuit breakers and can accurately measure the mechanical dynamic characteristic parameters of high-voltage circuit breakers (including minimal-oil, bulk-oil, vacuum, and SF6 types) across multiple voltage levels. High-voltage circuit breakers bear the dual responsibilities of control and protection in power systems, and their performance is directly related to the system's safe operation. Mechanical characteristic parameters are among the key indicators for evaluating circuit breaker performance.
II. Product Features
High-Performance Hardware Platform: Utilizes an embedded industrial PC with a CortexTM-A8 mainboard, 1GHz CPU, 1GB Flash memory, and a boot time of only 16 seconds.
User-Friendly Interface: Features a large 9-inch color touchscreen, Windows OS, and an intuitive interface supporting Chinese and English input for convenient field operation.
On-site Data Output: Built-in high-speed thermal printer for immediate printing of test data on-site.
Integrated Operating Power Supply: Contains an adjustable built-in power supply, eliminating the need for an external secondary power source. Provides DC 6–270V, 20A output, allowing arbitrary setting of opening/closing coil voltage for low-voltage operation tests.
Versatile Sensor Configuration: Standard with linear, rotary, and universal sensors. Laser sensor is optional. Includes dedicated brackets and multi-functional adapters for extremely convenient and simple installation.
Wide Applicability: Suitable for various types of SF6 circuit breakers, GIS, vacuum circuit breakers, and oil circuit breakers manufactured domestically and internationally.
Efficient Testing & Analysis: Captures all data and waveforms from a single circuit breaker operation, displayed simultaneously on one screen. Allows speed re-calculation without retesting.
High-Capacity Data Storage: The main unit can store 30,000 sets of test data (expandable via memory card). Includes a real-time clock for easy data archiving.
Rich Expansion Interfaces: Equipped with 2 USB ports for mouse operation or direct data saving to USB drives for computer analysis/storage. Optional RS232 online operation and WIFI functionality.
Powerful Measurement Capability: Can simultaneously measure 12 metal contact breaks (6 main + 6 auxiliary) and 1 speed signal (3 speed measurements optional).
Advanced Analysis Functions: Includes envelope curve generation for comparison with standard curves and supports vibration frequency analysis.
Excellent Anti-Interference: Internal anti-interference circuitry ensures reliable operation in strong electromagnetic environments like 500kV substations.
III. Main Technical Parameters
Time Measurement
Channels: 12 inherent opening (closing) times.
Items: Opening (Closing) non-synchronism, Phase-to-phase non-synchronism, Closing (Opening) bounce time (bounce count).
Range & Resolution:
Non-synchronism: 1ms–99ms, Resolution: 0.01ms.
Internal Trigger: 1ms–999ms (Res: 0.01ms), 1000ms–9999ms (Res: 0.1ms), 10000ms–200000ms (Res: 1ms).
External Trigger: 0.01ms–200s.
Accuracy (<1000ms): 0.05% ± 0.01ms.
Speed Measurement
Items: Instantaneous opening (closing) speed, Average speed within a specified period (stroke or angle).
Range & Resolution:
1mm Sensor: 0.01–25.00 m/s.
0.1mm Sensor: 0.001–2.50 m/s.
345° Angle Sensor: 0.01–25.00 m/s.
Laser Sensor: 0.01–15.00 m/s.
Stroke Measurement (3-channel measurement optional)
Items: Moving contact travel, Contact gap, Overtravel, Overshoot/rebound stroke.
Range & Resolution:
Linear Sensor: 0–50mm, Resolution: 0.1mm.
Rotary Sensor: 0–345°, Resolution: 0.08° (Has ~15° dead zone; optimal display value during installation is 160–200°).
Acceleration Sensor: 0–300mm, Resolution: 0.1mm.
Coil Current Measurement: Max 20A, Resolution: 0.01A.
Coil Resistance Measurement: 0–2000Ω, Resolution: 0.01Ω.
Instrument Power Supply: AC 220V ± 10%, 50Hz ± 10%.
DC Power Output: DC 6–270V continuously adjustable.
DC 24V Output: ≤ 15A (short-time).
DC 220V Output: ≤ 20A (short-time).
External Trigger Voltage: AC/DC 10–300V, Current ≤ 120A.
Disconnector Switch Measurement Range
Voltage Output: DC 6–270V (adjustable).
Power Output Time: 0.01–20 seconds (configurable).
Max Break Signal Acquisition Time: 200 seconds.
Measurable Parameters: Break closing/opening time, Three-phase non-synchronism, Bounce time and frequency.
Main Unit Dimensions: 440 × 300 × 260 mm.
Operating Environment
Temperature: -20°C to +50°C.
Relative Humidity: ≤ 90%.