Power Probe

The PSP Power Probe is a three phase data logger, quality of supply monitor, and remote terminal unit for demand-side-management.

Historical information of two months is kept in non volatile memory for later analysis.

Communication options to the unit include direct connection to a computer or PDA serial port, dial-up modem, or real-time communication via the internet.

Content Index

Probe connection to supply and load Probe connection to PC Probe functions Analysis tools

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Auxiliary Supply

220VAC or 110VAC 50 Hz or 60 Hz Instrument supply

independent of supply to load

Burden: less than 0.5 VA

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N L

Connection to Load

220V/380V Voltage Input Option for direct connection to supply

5mA Voltage Input Option for connection via PSP Voltage Probe

1A/5A Current Input Option for connection to metering CTs

5mA Current Input Option for connection via PSP Current Probe

Va Vb Vc

Voltage Inputs

Ia Ib Ic

Current Inputs

Three Phase : 2 or 3 CT method

Single Phase: 3 independent data loggers Home

485

485

485

Connection to PC

Isolated RS232 port Multiple Probes per site via

single modem on RS485 bus. Modem or PC connection to

RS485 bus via RS232/RS485 Adaptor

Connection via the Internet with TCP Host Program

RS485 B

US• To PC, or•To Modem, or•To TCP Host

RS232

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Software

Main selection panel– Connect– Communicate– Analyse

Connect options– Local port– Via modem– Via HTP host on internet

Organize probe data in folders

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Functions

Real Time Functions– Setup– Energy meter– Quality of supply monitor– Remote terminal unit– Digital multi-meter– Oscilloscope– Meter tester

The Analog Devices ADE7758 poly phase multifunction energy metering chip is the core of all measurement in the Power probe. It is presently the most advanced metering chip in the world. The full functionality of this chip is exposed via a powerful main processor and communication protocol.

Independent per-phase information is kept in non-volatile memory for active energy, reactive energy, voltage peaks, voltage dips and power-downs.

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Functions (2)

Demand side Management

– Four isolated digital inputs

– Four isolated control outputs

Revenue Protection– Cheap communication

principles for remote statistical metering

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Analysis Tools

Long term consumption analysis

– Accumulated energy consumption plots over multiple months

Revenue Protection tools:

– Linear regression plots– Data export to

spreadsheet formats

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Analysis Tools (2)

Half-hour consumption analysis

– Active energy– Reactive-Energy– Apparent energy– Current profile– Volt Profile– Power-down history

Per-phase and summated values on plots

Interactive channel selection Time zooming and panning

on plots Document creation to PDF

files Data export to spreadsheet

format.

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Analysis Tools (3)

Waveform AnalysisCaptured waveforms of

voltage, current, active power, and reactive power can be exported to data-files for analysis via third-party software packages.

Third-party analysis on exported data

– FFT analysis– Energy spectrum – Harmonic content– Form-factor

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