PD2U system consists of desktop acquisition and display unit (single channel), RPA1 preamplifiers, quadrupoles, calibrators and Connecting Cables.
Testing Applications: Test objects include bushing, cable, switchgear, capacitor, GIS, transformer, motor, generator, etc.
Condition evaluation of insulation systems
Quality assurance testing in manufacturing plants
Routine testing in a variety of applications
Desktop Acquisition and Display Unit (Single Channel)
Voltage measurement
Backlit LCD 240 x 128 dots
Scope and meter display
Auto-range function
Automatic storage of current settings
Internal (line 50/60 Hz) and external synchronization (15-510 Hz)
Universal serial interface (USB, up to 921 kB)
System Overview:
Partial discharge (PD) measurements are a proven method for effective, non-destructive evaluation of electrical insulation.
The PD2U provides a simple pushbutton interface with an LCD display.
Display modes include a simple PD charge meter with adjustable “needle” sensitivity, monochrome phase-resolved PD patterns for characterization of defects, and a scope-like display showing phase-summed charge pulses superimposed with the applied voltage wave.
High voltage is displayed showing the waveform and calculates Û, Û/√2, Urms.
Although the PD2U is a stand-alone unit, it can be connected to a computer to capture screenshots or to implement remote control of the unit.
A wide range of accessories are offered adapting the PD2U to specific testing applications and noise conditions. Measured results are in compliance with IEC 60270.
This unit can be used with a full range of preamplifiers covering the IEC60270 standard and ultrasonic frequencies up to the UHF range (20 kHz-2 GHz).
Cable PD location (Option). Equipped with a DSO board, the PD2U can be used to locate partial discharge defects in power cable. MUX4 (Option). 4-channel multiplexer for testing three-phase equipment such as power transformers. For each channel the unit maintains an individual set-up and calibration.
Options: triggered noise cancellation gate, current transformer, rack mounting kit, dso, cable pd fault location, MUX4: 4 channel measurement upgrade, standard control software, enhanced cable location software.
Acquisition Unit:
Input: 100-240 VAC, 50/60 Hz
Power: 25 VA
Temperature Range: 10°C – 45°C
Dimensions: W236 x D295 x H133 mm
Weight: 7 lbs. (3 kgs)
Reference Voltage Input (BNC):
Input Impedance: 1 MΩ / 200 pf
Input Voltage: Max. 120 V (rms)
Frequency: 20-510 Hz
Partial Discharge Signals:
Coupling: AC
Input Impedance: 50 Ω (without RPA)
Low Frequency Cutoff: 40, 80, or 100 kHz
High Frequency Cutoff: 250, 600, or 800 kHz
RPA1 Preamplifiers:
Frequency Range: 40-800 kHz
Input Impedance: 10 kΩ/50 pF
Input Sensitivity: <200μV
Roll-Off: 40 dB/dec
Bipolar
Quadrupoles: Designed for up to 100 kV~400kV, 1 nF Capacitor Range, 400 mA max (depends on model).
Calibrators:
Range:
CAL1A: 1,2,5,10,20,50,100 pC (Standard lab use)
CAL1B: 100,200,500 pC; 1,2,5,10 nC (High output, mainly suitable for rotating machine testing and recommended for transformer testing)
CAL1C: 1,2,5,10,20,50,100 pC at 100 pF with external high voltage capacitor (Can be used with HV Injection Capacitor)
CAL1D: 10,20,50,100,200,500,1000 pC (Transformer Testing)
Connecting Cables: A full set of high quality RG58 cables with BNC connectors is supplied.
2 x 20 m
Quadrupole Connection Set
Power Lead
Please feel free to contact for detailed specifications, accessories, software and options.