PowerPD, Inc.

PD-MAT400A

PD-MAT400A is a permanently mounted on-line Partial Discharge (PD) diagnostic system. This test device focuses on detecting and analyzing the generation of PD in equipment such as transformers, HV GIS circuit breakers, GIS ductwork, and CGIS using acoustic emission detection. The ability to link up to 32 units using an RS-422 allows the user a greater degree of protection for critical substation equipment. Each unit uses four Acoustic Emission (AE) sensors. This unit provides advanced warning of potential failures.

(NOTE: All PowerPD units include software, which allows accessibility of continuous monitoring from your home or office PC, via, remote Internet)

Features

Provides pro-active decision making though continuously monitoring and detecting abnormal conditions in high voltage equipment
Reduced maintenance expenses by avoiding costly damage to equipment
Provides early warning of possible failure and lost of revenue from an unexpected outage
Risk management of previously undetected faults

Screen Shots



2D Data	3D Data


Display of Partial Discharge Detection

System Configuration

Specification

4 Channels (4 of Acoustic Emission Sensor; R15I (100 - 300KHz))
Daisy chain up 32 units
One month internal memory
Power
110~240V 50/60Hz
Communication; MODBUS protocol
  - RS-485
      Baud Rate: 19200 bps
      Length: 1.2Km
      Daisy Chain: 32 units
  - Modem: (Option: Wireless modem)
      Baud Rate: 1200bps
  - RS-232
      Baud Rate: 19600 bps
      Length: 12m
Alarm (output: Dry Contact)

Functions

Data analysis
  - Partial Discharge counts in bursts are captured (Envelop)
  - Programmable alarm option allows Threshold & Envelop Alarms
  - Signal Pulse vs. Phase are displayed and measured
  - Amplitude of Fault vs. Phase are measured
  - Automatic Noise level detection.
Data Management
  - One month of data storage capability
  - Simple display and management of daily, monthly and yearly data
  - Ability to Trend and Forecast a known fault
  - Phase vs. time; Pulse vs. Phase; Pulse vs. Amplitude
  - 2D and 3D graphic display for ease of diagnosis
  - User settings are possible for data collection
System Operations
- Windows NT/2000/XP Environment

Measurement

Partial Discharge counts are displayed in Bursts (see graphic)
Programmable alarm option allows the user to set Threshold & Envelop Alarms

Applicable Targets: Transformer, GIS, Circuit Breakers and CGIS.