ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
- TEV measurement:
Measuring range: 0-60 dBmV
Resolution: 1dB
Precision: ±1dB
Maximum pulse per cycle: 1400
Measurement frequency band: 3~100MHz
- AE measurement:
Measuring range: -6dBμV to 68dBμV
Resolution: 1dB
Precision: ±1dB
Frequency Range: 20~200 kHz
- AA measurement:
Measuring range: -6dBμV~68dBμV
Resolution: 1dB
Precision: ±1dB
Sensor center frequency: 40 kHz
- UHF measurement:
Detection frequency: 300-2000MHz
Measuring range: 0-60 dBmV
Sensitivity: ＜1dBm
Sensor frequency band: 300-2000MHz
- HFCT measurement:
Sensor transmission impedance: 5mV/mA
Detection frequency: 1～30MHz
Sensitivity: ≤50pC
- Hardware:
Shell: ABS
Screen: 4.0 inch RGB LCD screen, resolution 800*480
Sampling accuracy: 12bit
Synchronization mode: Internal synchronization, external synchronization
Connector: USB interface (also charger input) WIFI; 3.5mm stereo headphone jack; External sensor input interface
Earphone: 8 Ω minimum
SD card: Standard configuration 16G ~ 64G
Built-in battery: 3.7V/5000mAh lithium battery
Operating hours: Approx. 6 hours
Charger: AC 90-264V or DC 5V
Operating temperature: -20 ~ 50℃
Humidity: 20-85% relative humidity
Volume and weight: 210*100*35(mm) 0.4KG(host)
General Information:
EPJF-8000 Hand-held Partial Discharge Detector can be widely used in partial discharge detection of power system, including high voltage switchgear, ring network cabinet, voltage / current transformer, transformer (including dry type transformer), GIS, overhead line, cable and other equipment insulation state detection, through the following indicators to measure the discharge degree of electrical equipment:
Partial discharge intensity detection: by measuring the discharge signal in one power frequency cycle, the partial discharge intensity is characterized according to the maximum value (dB) in the discharge pulse sequence.
Partial discharge frequency detection: by measuring the discharge signal in one power frequency cycle, the discharge pulse is extracted and the partial discharge frequency is characterized according to the number of discharge pulses.
Features:
-Configure different sensors to achieve partial discharge detection of almost all high-voltage electrical equipment.
-Provide time domain waveform, PRPD, PRPS and other discharge patterns to realize the analysis of different discharge types.
-Humanized man-machine interface facilitates data management of different devices.
-Built-in ultrasonic sensor and transient ground voltage (hereinafter referred to as TEV) sensor, which can be connected with special sensors such as transformers, GIS, overhead lines, cables, etc.
-Adopts non-intrusive detection method, no need to power off during the test process, no need to configure additional high voltage source, it is more convenient to use than traditional pulsed partial discharge detector.
-The test bandwidth range is 30kHz ~ 2.0GHz, which is suitable for detection principles of various frequency bands.
