The KF-6901C multifunctional partial discharge locator is a portable device that integrates partial discharge data measurement and positioning. It provides three measurement modes: TEV, ultrasonic, and HFCT, and can perform partial discharge detection on switchgear and cables. This device is compact and lightweight, making it very suitable for on-site inspections.

1、 Basic functions
It can measure and locate partial discharge of medium and high voltage switchgear (3-66KV) and incoming and outgoing cable heads;
Transient Earth Voltage (TEV) sensors can be used to detect and locate the insulation internal discharge source of the switchgear;
Internal ultrasonic sensors can be used to detect surface discharges;
HFCT can be used to detect partial discharge in cables and display the measurement results of cable partial discharge in numerical (pc value) or graphical form;
Piezoelectric ultrasonic sensors can be used to detect partial discharge ultrasonic waves inside the switchgear;
Can be connected to external extended ultrasonic sensors and ultrasonic concentrators;
L can detect the temperature and humidity inside the substation;
L has data acquisition and storage functions;
Chinese operation interface, multiple display and setting functions;
Touchscreen operation;
Built in function self-test device

2、 Technical parameters
1. Transient ground voltage TEV measurement (positioning of two sensors):
Sensor: Capacitive

Measurement range: 0-60dBmV

Resolution: 1dB
Accuracy: ± 1dB
Maximum pulse per cycle: 655

Minimum pulse frequency: 10Hz
2. Ultrasonic measurement:
Measurement range:- 7dBμV-68dBμV

Resolution: 1dB

Accuracy: ± 1dB
Sensor sensitivity:- 65dB (0dB=1volt/μ bar effective value SPL)
Sensor center frequency: 40kHz
Sensor diameter: 16mm

Heterodyne frequency: 38.4kHz
3. Partial discharge of cables:
Measurement range: 0-60000pC

Resolution: 10pC

Accuracy: 10pC
4. Power supply:
Internal battery: 3.7V13.6Ah lithium-ion battery

Normal working hours: approximately 5 hours
5. Other:
Host IP level: 30

USB storage

Weight: 1.8Kg
Working temperature: 0-55 ° C

Humidity: 0-90% relative humidity, no condensation