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Partial Discharge (PD) measurement

Haefely Test AG offers a broad range of partial discharge solutions ranging from simple discharge meters to digital detectors with diagnostic capabilities. Applications covered include screened environments, open factories, on-site testing and installed cable test and diagnosis.

detectors

DDX 9101

[ Partial Discharge Detector ]

The DDX 9101 is the effective solution for routine pass/fail partial discharge testing. It has the basic functions of an analog detector and meets all IEC and IEEE/ANSI standards for partial discharge testing. It’s a straightforward replacement for older analog detectors of any make or model. The DDX 9101 simply measures the level of PD and the applied test voltage. It’s designed to help you modernize your testing facility at an affordable price and, it’s simple to operate.

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DDX 7000 / DDX 7000SL / DDX 8003

[ Partial Discharge Measuring System ]

This advanced instrument is a powerful digital PD detector with a large number of options to cover the two main PD applications:
SL type: Optimized for Power Cable PD testing with built-in Site Location hardware and software.
XF type: Optimized for Transformer PD testing with additional 3-phase multiplexing hardware and software modules.

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DDX 9121

[ Multichannel Partial Discharge and Radio Interference Voltage Detector ]

The DDX 9121 partial discharge & radio interference voltage detector is the perfect solution for multi-phase partial discharge & radio interference voltage testing.
The system comprises multiple, rack-mounted PD/RIV measuring units communicating with a remote PC, which handles the display of PD/RIV information using an advanced data acquisition and remote control software. The PC displays test results, provides means of calibrating the system and logging of the results into a test report.
The channels can be used in multiple configurations together or as stand-alone detectors. Multiple, independent channels also mean inherent redundancy in case of a failure of one insert.

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DDX 9121a-1

[ Partial Discharge and Radio Interference Voltage Detector ]

The DDX 9121a-1 partial discharge & radio interference voltage is the latest in the DDX family of PD detection equipment.
It's our solution for single partial discharge & radio interference voltage testing.
With the DDX 9121a-1 you can setup, control, test monitor and generate test reports from a single computer. Its modular design makes possible to add additional channels.

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9120

[ Analogue Partial Discharge Detector ]

The 9120 combines a traditional analogue PD detector (type 9126) with a PD bridge for effective noise suppression. A CRT and meter display are included as standard. Optional modules are available for digital voltage readout and RS 232 interface. A remote controllable narrow-band amplifier can also be added for further noise reduction.

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calibrators

KAL 450

[ Partial Discharge Calibrator ]

The KAL 450 is a battery powered PD calibrator for direct coupling of the generated PD signal to the test object acc. to the related standards IEC 60270 and IEEE 454.
Pulse outputs ranges are 5 – 100pC. The pulse rise time is < 20ns, pulse width < 150ns. A double impulse generator with time lag of 0 – 200us monitors the superposition characteristics and resolution capability of the detector.
The calibrator has a visual indication of the battery status. Triggering of the impulses is realised over external light source synchronisation or by a built-in 50Hz oscillator or by an external voltage up to 400Hz/40V. The pulse phase angle can be shifted 0 – 360° in relation to the synchronisation voltage.

KAL 451

[ Partial Discharge Calibrator ]

The KAL 451 is a battery powered PD calibrator for direct coupling of the generated PD signal to the test object according to the related standards IEC 60270 and IEEE 454.
Pulse outputs ranges are 2 – 200pC and 20 – 2000pC. The pulse rise time is < 20ns. The calibrator has an acoustic indication of active operation as well as low battery. Triggering of the impulses is realised over external light source synchronisation or by a built-in 50Hz oscillator.

9216

[ Partial Discharge Calibrator ]

The 9216 is a small battery powered PD calibrator for direct coupling of the generated PD signal to the test object according to the related standards IEC 60270 and IEEE 454.
Pulse outputs ranges are 10, 10², 10³, 10⁴ pC.
Triggering of the impulses is realised over external light source synchronisation.

RIV 9220a

[ Radio Interference Voltage Calibrator ]

The RIV 9220a is a battery powered hand held RIV calibrator that delivers a sinus output of several defined frequencies from a crystal thta has a frequency precision of +/- 100ppm.

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