Product Description:KF-6901EMulti functional partial discharge diagnostic inspection instrumentEquipped with two detection modes: inspection mode、Diagnostic mode;Can be used for switchgeartransformerPerform partial discharge testing and positioning on equipment such as cable trays, cable joints, and insulators of overhead lines, as well as pole mounted switches; High frequency current（HFCT）The detection mode can perform partial discharge detection on transformers and cables; Ultra-high frequency（UHF）Contact ultrasonic waves（AE）The detection mode can be used forGISPerform partial discharge testing on the equipment. The detection results display discharge intensity, discharge phase, historical data, etc. in numerical and graphical formAnd alsoAnalyze the types of diagnostic signals and fault types, generate test reports and diagnostic results.at the same timehaveRFID data storage chip recognition and intelligent inspection function.

Functional Features

1. It integrates five principles of transient earth voltage (TEV) detection, ultra-high frequency (UHF) detection, ultrasonic (AE) detection, ultrasonic (AA) detection, and high-frequency current (HFCT) detection, and is suitable for partial discharge testing of high-voltage equipment.

2.Can meetGIS、 Partial discharge inspection and fault analysis and diagnosis of high-voltage equipment such as switchgear, transformers, and cables.

3.Fault data collection adopts wireless technology/There are two optional wired transmission methods, which facilitate on-site operation by personnel and ensure the safety of testing personnel. The sensor is fixed on site, and personnel can stay away from the tested equipment for testing.

4.The five testing principles all have amplitude detection, column trend chart, cycle chart detection, waveform chart detection, pulse chart detectionVarious methods such as PRPD and PRPS spectrum detectionchartAnalyze functions, diagnose signal types and fault types, generate test reports and diagnostic results. The instrument is compact, easy to carry, and versatile, which can truly improve the work efficiency of on-site users and reduce work intensity.

5 The instrument host adopts the Android system and is equipped with a quick inspection industrial control system (optional, capable of quick inspection). The system has a data saving function and can store all data including partial discharge test data, partial discharge test spectra, etc. in real time in the partial discharge tester host. The partial discharge detection data includes:TEV test data, ultrasonic test data, ultra-high frequency test data, and high-frequency current test data. Partial discharge testing spectra include pulse spectra, waveform spectra, cycle spectra, PRPD/PRPS spectra detection, etc.

6.The host is equipped with dedicated testing software, which has real-time control measurement and historical event analysis and playback functions. A data analysis software that complies with national standards, capable of storing, managing, and analyzing detection data, compatible with and importing partial discharge data files from other manufacturers that comply with national standards, and replaying them.

7.It has multiple synchronization functions to keep the phase detected by the periodic spectrum consistent with the frequency of the on-site power frequency.

8.haveRFID data storage chip recognition and intelligent inspection function.

1.1 Hardware parameters

1.1.1TEVTransient ground voltage measurement

uSensor: Capacitive

uMeasurement range:0～60dBmV

uFrequency range:1～100MHz

uresolving power:1dB

uAccuracy:±1dB

uMaximum pulse/Number of cycles:1400

uMinimum pulse rate:10Hz

1.1.2AAAir based ultrasonic measurement

uMeasurement range:-7dBuV～68dBuV

uresolving power:1dB

uAccuracy:±1dB

uSensor sensitivity:-65dB（0dB=1volt/ubarValid valueSPL）

uSensor center frequency:40kHz

uFrequency range:20～100kHz

uSensor diameter:16mm

uHeterodyne frequency:38.4kHz

uContact type air ultrasonic center frequency:20~300KHz

1.1.3AEContact ultrasonic measurement

uMeasurement range:0dBuV～68dBuV（0.001mv～1.000mv）

uresolving power:1dB

uAccuracy:±1dB

uSensor sensitivity:-65 dB (0 dB=1 volt/μbarValid valueSPL)

uFrequency range:0～200 kHz

1.1.4HFCThigh frequencyelectricityflow measurement

uSensor:HFCT

uMeasurement range:0pC～25000pC

uSensitivity: not greater than50pC

uDetection frequency:200KHz～50MHz

uDetecting bandwidth:100MHz

uInner diameter:45mm

uOuter diameter:110 mm

uOutput impedance:50Ω

uOutput interface:BNCconnector

1.1.5UHFUltra high frequency measurement

uSensor:UHF

uMeasurement range:-65dBm ~0dBm/-10~60dBm

uSensitivity:>10mmequivalent height

uresolving power:±0.5dB

uFrequency response:300MHz～1500MHz

uOutput impedance:50Ω

uOutput interface:BNCtype

1.1.6Input and output interfaces

uLEMOExternal ultrasonic sensor input interface

uBNCexternalAESensor input interface

uBNCexternalHFCTSensor input interface

uBNCexternalUHFSensor input interface

u3.5mmStereo headphone jack

ustandardSDCard data storage interface

u2.1mmLow voltage direct current（18VDC）Charger interface

u1.3mmPower synchronization input interface

uUSBinterface

uRJ45Ethernet interface

1.1.7SDblock

ustandard configuration16G（support4GBAnd aboveSDblock）

1.1.8headset

u3.5mmStereo headphone jack,32ohm

1.1.9built-in power supply

uInternal battery: Lithium ion battery

uNormal working hours: approximately8hour

uBattery protection function: low voltage automatic shutdown

1.1.10Battery Charger

uRated voltage:90～264V AC

uFrequency:47～63Hz

uCharging voltage:12VDC

uFull charging time:12hour

uSize:85mm×50mm×30mm

uOperating temperature:0～40Celsius

uHumidity:20～85%Relative humidity, no condensation