Soken DAC-PD-3 - Partial Discharge Measuring Set

Providing both wideband (10kHz - 4MHz) and narrowband (10kHz - 200kHz), DAC-PD-3 is applicable to partial discharge tests of electric equipment, such as generators, motors, transformers as well as insulating materials and power devices.

Application

• Electric Equipment: Generators, motors, transformers, cables
• Electric Parts: Capacitors etc.
• Insulating materials
• Power devices
• High-frequency equipment: compact high-frequency transformers

Front Panel

• Q-MAX Mode: This mode is suitable for detecting the magnitude at a single maximum partial discharge.
• COUNT Mode: N-q Characteristic can be obtained by measuring the repetition rate of PD pulses for the Charge of PD pulses.
• AUTO COUNT mode: In AUTO COUNT MODE, the maximum partial discharge magnitude for the specified repetition rate of partial discharge pulses can be measured. (Partial discharge magnitude is output in Log and V-q Characteristic can be obtained.)
• Noise Suppressible Function: 
  • Periodicity noises can be masked.
  • Pulse noises can be masked by detecting the noises from CT and aerial wire.
  • Charge pulse can be masked for a given length of time to reflex waves after detection.
• Phase Gate Setup: Phase Gate can be set 0～359° at every 1° step optionally. 

Function Explanation

• In Narrow Frequency (NARROW BAND), since PD pulses at 10kHz - 200kHz can be detected and amplified. Narrow Band mode is suitable for specimen constructed distribution contract circuit and can measure generators, motors, transformers, cables, and capacitors.
• In wideband (WIDEBAND), since PD pulse at 10kHz~4MHz can be detected and amplified, thus is superior for pulse resolution. The wideband mode is suitable for specimen constructed focused constant circuit and can measure power devices, compact high-frequency transformers.
• N-q characteristic test can be performed with COUNT mode since Pulse Counter is built-in. (N: repetition rate of PD pulse, q: partial discharge magnitude)
• Possible to analyze “partial discharge-phase” since the phase gate is set optionally.
• Periodicity noise can be masked. (External control is also possible.)

Connecting Diagrams

Characteristic Observed

• Select bandwidth of frequency
  • Narrow band: 10kHz - 200kHz
  • Wideband: 10kHz - 4MHz
• Detects only partial discharge pulse by suppressing noises from testing source with a differential measuring circuit.
• Automatically measures Q-MAX at a specified repetition rate of partial discharge pulses per second (PPS).
• Possible to analyze “partial discharge – phase” since phase gate is set optionally.
• Noise suppressor circuit is controlled from outside through GP-IB.

General

Do you have a Partial Discharge Measuring Set that needs to be calibrated?

We offer standard traceable calibration and ISO 17025 accredited calibration services.