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Related Manuals for GDZX ZXPD-200L
Summary of Contents for GDZX ZXPD-200L
- Page 1 ZXPD-200L Partial Discharge Detector Use Manual...
- Page 2 The warranty period of the ZXPD-200L partial discharge detector is one year, and the warranty period starts from the date of shipment.
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Page 3: Product Introduction
2. Product Introduction 2.1 Notes The ZXPD-200L partial discharge detector is used for the detection and evaluation of the insulation status of high-voltage switchgear, ring network cabinets, transformers, GIS, overhead lines, cable terminals, cable branch... - Page 4 2.2 Brief description The ZXPD-200L partial discharge detector can be widely used in the theater detection of power systems, including the insulation status of high-voltage switchgears, ring network cabinets, voltage / current transformers, transformers...
- Page 5 measure the discharge level of electrical equipment through the following indicators: Partial discharge intensity detection: By measuring the discharge signal within a power frequency period, the intensity of partial discharge is characterized according to the maximum value (dB) in the discharge pulse sequence. Partial discharge frequency detection: The device measures the discharge signal within a power frequency period, extracts discharge pulses and characterizes the frequency of partial discharges according to the number of...
- Page 6 ☀ The test bandwidth range is 30kHz ~ 2.0GHz, suitable for the detection principle of various frequency bands; 2.4 Product Application ZXPD-200L partial discharge detector is widely used in the following fields: ☀ Development and distribution enterprises ☀ Railway system ☀...
- Page 7 Shell Display 4.0 inch RGB LCD screen Controller USB interface (also charger input) wireless wifi Connector 3.5mm stereo headphone jack Wireless synchronization benchmark External ultrasonic sensor input Earphone minimum 8 ohm SD card standard 16G Built-in battery 3.7V/1Ah lithium battery Working time about 8 hours Charger...
- Page 8 2.7 Product configuration list The ZXPD-200L partial discharge detector is composed of the detection host, sensor, PC, software CD and related accessories. Among them, the sensor, PC and software CD are optional parts.Shown as Table 1...
- Page 9 English when overseas customers purchase 3. Operating Instructions 3.1 Structure ZXPD-200L Host The front end of the ZXPD-200L host has a built-in non-contact ultrasonic sensor and a built-in TEV sensor, which can realize the detection of partial discharge of...
- Page 10 The host can automatically switch the measurement mode according to the different sensors. For sensors that can be connected to ZXPD-200L, please refer to the optional part in Table 1 of the product configuration list.
- Page 11 (TEV) principle, and the ultrasonic sensor and TEV sensor built in the ZXPD-200L are used to measure the partial discharge of the high voltage switchgear The position of the front end, the part needs to be close to (ultrasonic measurement) or close to (TEV measurement) high-voltage switchgear during the test.
- Page 12 0uV, not a negative number! The measured data in an interference-free environment is usually between -6dBuV and 0dBuV. In addition to testing the amplitude of the discharge signal, ZXPD-200L can also detect the number of discharge pulses per cycle, expressed as P / Cycle, the...
- Page 13 with ultrasonic waves, the sensor needs to be close to the gap of the cabinet. Ultrasonic signals are audible through digital filtering). According to the regulations of the State Grid Regulations, refer to Table 2 to determine the insulation status of the switchgear: Ultrasound reading Explanation -6 ~ 0dBuV，No discharge sound...
- Page 14 Built-in sensor to switch active area Switch from built-in sensor to built-in TEV sensor Note : clicking this area is only valid for the built-in sensor switching. This function is invalid when external sensors are connected. The system will automatically switch and display the sensor icon according to the connected sensor type, without manual selection.
- Page 15 The TEV measurement mode also needs to refer to the pulse count value P / Cycle, and the pulse number and amplitude comprehensively measure the health of the switchgear. When the environmental value is large, the source of interference needs to be found.
- Page 16 3.3.3 Atlas mode Time domain signal waveform and PRPD pattern ZXPD-200L can provide time domain signal waveform, PRPD map and PRPS map. ZXPD-200L displays the time domain signal waveform and PRPD phase map by default after booting, as shown in the following figure:...
- Page 17 displays the collected signals in real time, and the lower part is the PRPD phase map. With time, the PRPD map will continuously redraw the relationship between the discharge signal and the phase. According to the relationship between the phase and the discharge amplitude, it is analyzed whether the discharge characteristics of the current device have the correlation between 50 Hz and 100 Hz, and the repeatability of the discharge signal in the phase interval.
- Page 18 PRPD and PRPS atlas Taking GIS as an example first, a UHF UHF sensor needs to be configured in the field test. The frequency range is 300 ~ 2000MHz. The sensor should be placed in the position of the insulating basin. If you use a contact ultrasonic sensor to test, you can test the whole tank.
- Page 19 Free metal particle discharge is a partial discharge between metal particles and metal particles and a partial discharge between metal particles and metal parts. This type of discharge amplitude distribution is relatively wide, the discharge time interval is unstable, its polarity effect is not obvious, and there is a discharge signal distribution throughout the phase of the power frequency cycle.
- Page 20 have different polarities. Air gap discharge inside insulation The air gap discharge inside the insulation is mainly due to internal cracking and gas Due to defects such as gaps, the number of such discharges is small, and the cycle repeatability is low. The discharge amplitude is also more dispersed, but the discharge phase is more stable and there is no obvious polarity effect.
- Page 21 The host will select the sampling channel of the corresponding frequency according to the different sensor IDs. So far, the ZXPD-200L host has integrated four channels of different frequencies through separate sensors. Expansion port connection, truly achieve the purpose of...
- Page 22 Sensor expansion port 3.4 Data management During the testing process, if you want to store the current test results (including atlas), you can click the save icon " " in the main test interface to store the current record, and the system will enter the file editing interface, you can enter Chinese and English files through the numeric keyboard Name, click confirm after input.
- Page 23 3.5 Settings The settings of ZXPD-200L are very simple. Click the " " icon on the main test interface to enter the setting interface. The following describes the settings of each function.
- Page 24 Date, time :Touch time to enter editing, the selected edited item will be displayed between " " " ", indicating that it is currently adjustable. WIFI: You can use WIFI to transfer data with a computer. Before data transmission, you need to set the WIFI address, and you can set up a connection before data transmission.
- Page 25 3.6 USB connection In addition to using WIFI to communicate with computers, ZXPD-200L can also realize data transmission through USB. It is also convenient to use USB communication on computers without WIFI transceivers. Click the USB connection icon " " under the main test interface to establish a connection with the computer.