Pang Yuliang

Pangyu Liang Spark-667 DC Grounding Fault Detector Product Introduction:
Product model: Spark-667
Product brand: Pang Yuliang
Product category: Power related tester
Product note: DC grounding fault detector

Pangyu Liang Spark-667 DC Grounding Fault Detector Product Overview:
(1) The system has the function of measuring ground voltage. The instrument can measure the system's positive ground voltage, negative ground voltage, and system voltage, and can achieve a voltage monitoring range of 0-300V;
(2) System insulation impedance measurement function, the instrument can measure the system's positive to ground insulation impedance, negative to ground insulation impedance, balance bridge size detection, measurement range 0-99.9K Ω;
(3) The AC surge detection function allows the instrument to detect AC surge faults in the DC system and measure the AC voltage value entering the DC system, with a measurement range of 0-280V;
(4) System distributed capacitance measurement function, the instrument can measure the distributed capacitance of the system and display it in real time;
(5) Ring network detection and positioning function, the instrument can detect various ring network faults in two sections of the busbar, including positive pole ring, negative pole ring, two pole ring, and opposite pole ring, and can locate the ring network fault point through waveform display and direction display;
(6) The device has functions of amplitude modulation, reset, current waveform selection, and working mode selection, which can achieve the search and location of high resistance ring network faults.
(7) Branch insulation impedance measurement and insulation fault location function, the instrument measures the insulation impedance of each branch to ground, and can locate the insulation fault point through waveform display and direction display;
(8) Fault current spectrum analysis function, the device achieves frequency spectrum analysis of current changes through fast FFT transformation, effectively extracts the signal amplitude of the measured current frequency point, and improves detection accuracy;
(9) The ammeter function allows the device to be used as a high-precision ammeter, with a current measurement resolution of up to 0.01mA;
(10) The waveform curve display and direction display function, when using the detector to detect the measured branch, the display screen will display the current changes of the measured branch in the form of waveform curves, which is convenient for users to quickly and accurately find the fault point. When there are ring network faults and grounding faults, the direction of the fault point will be displayed.

Pang Yuliang Spark-667 DC Grounding Fault Detector Product Features:
(1) High reliability design
The device adopts an imported 32-bit microcontroller as the main system, and the hardware design strictly follows the relevant standards of power and electromagnetic compatibility. Multiple redundant methods are used internally to ensure the reliability of the device and the tested equipment.
(2) Precision material selection
The device uses a high-precision collector as the signal acquisition unit, and the voltage sampling adopts a high-precision imported analog-to-digital conversion chip, ensuring accurate measurement of voltage and impedance;
(3) Humanized human-computer interaction interface
Both the "analyzer" and "detector" use TFT LCD displays for users to view information;
The operation is simple and fast, and when detecting different branches, only one press of the start button is needed to complete it;
The test results are displayed intuitively and clearly, and can be presented to users in various display forms, including grounding status, waveform curve, insulation level, insulation impedance, leakage current size, direction information, etc.
(4) Intelligent detection and recognition system
The analyzer can automatically identify the system voltage level;
The analyzer can determine the category of ring network faults;
After synchronizing the information of the "detector" and "analyzer" once, it is not affected by the detection distance;
When the "detector" is used for detection, the collector can clamp a single power cord or multiple power cords to improve detection efficiency;
After the "detector" completes the detection, if there is a ring network or insulation fault in the tested branch, it will determine the direction information of the fault point relative to the test point.
(5) Complete testing functions and fault handling capabilities
The "analyzer" and "detector" are equipped with wireless data transmission modules for communication, with complete testing functions and display information, and can handle various ring network and insulation fault situations in DC systems.
The "analyzer" has multiple combination working mode selection functions of "amplitude modulation", "waveform", and "mode", which can adapt to various complex application environments.
（6）高安全性
The device uses microampere level detection signals combined with high-resolution DC detection collectors to achieve fault detection and localization, without any impact on the DC system.

Pang Yuliang Spark-667 DC Grounding Fault Detector Product Parameters:
3.1 Main technical indicators of the analyzer
Usage environment
Working power supply: DC40V-300V,
Environmental temperature: -20 ℃ -55 ℃
Relative humidity: 0-90%
DC voltage measurement
DC voltage measurement range: 0-300V
DC voltage measurement resolution: 0.1V
DC voltage measurement accuracy: 0.2%
AC voltage measurement
Measure AC and DC surge voltage: 0-280v
AC voltage measurement resolution: 0.1V
AC voltage measurement accuracy: 0.5%
Insulation resistance measurement
Insulation resistance measurement range: 0-999.9K Ω
Insulation resistance measurement resolution: 0.1K Ω
Insulation resistance measurement accuracy: ≤± 5%
Detection bridge amplitude adjustment range: 0mA, 0.25mA, 0.5mA, 1mA, 2mA
Detection of ring network resistance range: within 50K Ω
System distributed capacitance measurement
System distributed capacitance measurement range: 0-999.9uF
System impedance measurement to ground: 0-1000k Ω
Selection of waveform types for detection: sine wave, square wave
Working mode: forced signal start, automatic signal start
Display medium and resolution: TFT, 320 × 240
3.2 Main technical indicators of the detector
Insulation resistance measurement
Insulation resistance measurement range: 0-500K Ω
Insulation resistance measurement resolution: 0.1K Ω
Insulation resistance measurement accuracy: ≤± 10%
Spectrum analysis scope
Number of spectral analysis channels: 1
Spectrum analysis frequency range: 0.125-12.5Hz
Frequency resolution: 0.125Hz
Current waveform display period: 8s;
Detectable feeder current range: 0-2A;
Current measurement range: -100 to+100mA;
Current measurement resolution: 0.01 mA
Display medium and resolution: TFT, 320 × 240
3.3 Wireless Communication Technology Indicators
Speed: 2Mbps, due to the short transmission time in the air, it greatly reduces the collision phenomenon in wireless transmission
Multi frequency point: 125 frequency points, meeting the needs of multi-point communication and frequency hopping communication
Ultra small: Built in 2.4GHz antenna, compact size, 15x29mm
Low power consumption: When working in response mode communication, fast air transmission and startup time greatly reduce current consumption.