DJF-SC129 Local discharge detector
High-voltage Insulation Test Equipment
Model:DJF-SC129 Handheld Digital Partial Discharge Detector
Application:
This product can be widely used for partial discharge detection in power systems, including insulation condition assessment of high-voltage switch gear, ring main units, voltage/current transformers, transformers (including dry-type transformers), GIS, overhead lines, cables, and other equipment. The discharge severity of electrical equipment is evaluated through the following indicators:
Partial Discharge Intensity Detection: By measuring discharge signals over one power frequency cycle, the intensity of partial discharge is characterized based on the maximum value (dB) in the discharge pulse sequence.
Partial Discharge Frequency Detection: By measuring discharge signals over one power frequency cycle, discharge pulses are extracted, and the frequency of partial discharge is characterized based on the number of discharge pulses.
Features:
Equipped with various sensors to achieve partial discharge detection for nearly all high-voltage electrical equipment;
Provides multiple discharge patterns including time-domain waveforms, PRPD, and PRPS for comprehensive analysis of different discharge types;
User-friendly human-machine interface for convenient data management across different devices;
Built-in ultrasonic sensor and transient earth voltage (TEV) sensor, with expandable options for dedicated sensors such as those for transformers, GIS, overhead lines, and cables;
Employs a non-intrusive detection method, enabling testing without power outages or additional high-voltage sources, making it more convenient than traditional pulse-type partial discharge detectors;
Offers a wide testing bandwidth range of 30kHz to 2.0GHz, supporting detection principles across various frequency bands;
Specification:
TEV Measurement | AE Measurement | ||||
Measurement Range: | 0-60 dBmV | Measurement Range: | -6dBμV to 68dBμV | ||
Resolution: | 1dB | Resolution: | 1dB | ||
Accuracy: | ±1dB | Accuracy: | ±1dB | ||
Max Pulses per Cycle: | 1400 | Frequency Range: | 20~200 kHz | ||
Measurement Bandwidth: | 3~100MHz | ||||
AA Measurement | UHF Measurement | ||||
Measurement Range: | -6dBμV~68dBμV | Detection Band: | 300-2000MHz | ||
Resolution: | 1dB | Measurement Range: | 0-60 dBmV | ||
Accuracy: | ±1dB | Sensitivity: | ＜1dBm | ||
Sensor Center Freq: | 40 kHz | Sensor Bandwidth: | 300-2000MHz | ||
HFCT Measurement | |||||
Sensor Transfer Impedance: | 5mV/mA | ||||
Detection Frequency: | 1～30MHz | ||||
Sensitivity: | ≤50pC | ||||
Hardware Specifications | |||||
Casing: | ABS | ||||
Display: | 4.0" RGB LCD (800*480 resolution) | ||||
Sampling Accuracy: | 12bit | ||||
Synchronization: | Internal/External Sync | ||||
Connectors: | -USB (also for charger input) 3.5mm stereo headphone jack External sensor inputs | Wireless Wifi
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Headphone Compatibility: | Min. 8Ω | ||||
SD Card: | 16G~64G (standard) | ||||
Battery: | 3.7V/5000mAh Li-ion | ||||
Operating Time: | ~6 hours | ||||
Charger: | AC 90-264V or DC 5V | ||||
Operating Temperature: | -20 ~ 50℃ | ||||
Humidity: | 20-85% RH | ||||
Dimensions & Weight: | 210*100*35(mm) 0.4KG(main unit) | ||||
