Timothy Cox

Application and Technical

Support Engineer

Dynamic Ratings

Melbourne, Australia The holistic view on a single interface

platform of your power transformer

The Transformer

Cooling

System

Core

Tap changer

Coils

Tank Oil

Control

Cabinet

Bushings

Failure Statistics

Bushing Monitoring

Power Factor

Capacitance

Partial Discharge

ΔT (temp)

Partial Discharge

Operations Counters

Contact Wear

DGA

Moisture in Oil

Oil Dielectric

Partial Discharge

Leakage Reactance

Online FRA

Cooling System

Monitoring

Fan Current

Control Failure

Single Interface Platform

Cooling System

OLTC Monitoring

Alarm Contacts

DGA & Moisture

Bushings

Partial Discharge

Temperatures

Single Interface Platform

Cooling System

OLTC Monitoring

Alarm Contacts

DGA & Moisture

Bushings

Partial Discharge

Temperatures

Reversing switch monitoring

Time since reversing switch

operation

Auto reversing switch

exercise

Tap change per day

Block at limit positions

Under/Over voltage block

Over current block

Monitor 3x OLTC

Temp. delta monitor

Motor energy monitor

Motor CB trip

Power supply fail

Counter for each tap

Counter for total taps

Record tap wear by I²

More than one step alarm

Wrong direction alarm

Tap Changer Monitoring and Control

Full function AVR

Replace any voltage regulator

Remote control and settings

change

Selectable control scheme

Multi mode of parallel control

Manual, Local Auto or Remote

SCADA control

AVR with invers N or Definite

time delay mode

Voltage reduction in 2 stage

LDC – Line Drop Compensation

Over/Under voltage blocking

Over current blocking

Voltage Control

Stand alone operation

Monitor

Independent Manual

Independent Auto

Parallel operation

Static Master Follower

Dynamic Master Follower

Reverse Reactance

Circulating Current

VAR Sharing

SCADA Control

Voltage Control

Single Interface Platform

Cooling System

OLTC Monitoring

Alarm Contacts

DGA & Moisture

Bushings

Partial Discharge

Temperatures

Alarm Contacts

Buchholz gas

Conservator airbag leak

Tank oil level

OLTC oil level

Pressure relief device

Miscellaneous alarms

Etc…

Single Interface Platform

Cooling System

OLTC Monitoring

Alarm Contacts

DGA & Moisture

Bushings

Partial Discharge

Temperatures

DGA & Moisture

Interface with transformer online DGA (Calisto)

DGA data available through single system

Use data to perform advanced analytics

Water in Paper (WiP) algorithm

Dynamic Ratings patented Water in Paper (WiP) /

Transformer Moisture Model (TMM) feature:

Features ‘fuzzy logic’ algorithm developed at Transformer Life

Management institute

Uses input from any IED that measures moisture (e.g. Calisto

DGA)

Evaluates transport of moisture from oil to paper at varying

temperatures

Determines equilibrium and provides estimation of moisture in

insulation

Provides confidence measure, based on amount of data

available.

Transformer Moisture Model

Single Interface Platform

Cooling System

OLTC Monitoring

Alarm Contacts

DGA & Moisture

Bushings

Partial Discharge

Temperatures

Sensor connects to

the bushing test tap

Bushing Test Tap Sensor

Leakage current is measured from all three bushings in a

three phase system

These three vectors are summed together, with the

resultant vector being plotted on a vector diagram

This resultant vector is called the imbalance vector and

is the most important value in bushing health monitoring

Sum of Currents Method

Principal of Operation

Imbalance Vector Diagram

Ph. A

Ph. B

Ph. C

Partial Discharge Monitoring

Partial Discharge can be monitored from the

bushing test tap using the same sensor

Trending is the most powerful analysis tool

Understanding how a system is changing over

time is more valuable

Log vital information for up to 1 year

Stored in easily accessible CSV files (open in Excel)

Select which parameters to log

Select logging period (typically every 60 seconds)

Configure event based logging – e.g. log parameters for

each tap change.

Alarm log file records all alarms in sequence – useful for

understanding chain of events.

Download all logged data remotely (via SFTP/FTP)

Download all data locally (via USB automatic download)

Logging & Communication

Media for Communication

RS232 port

RS485 port

Fibre serial

Ethernet connection

Fibre 100BaseFX (ST connectors)

Copper 10/100BaseT (RJ45)

Protocols for Communication

IEC 61850

Modbus (RTU/ASCII)

DNP3.0

TCP/IP web pages, data downloads

Logging & Communication

HTTP & HTTPS (secure) - To display webpages and virtual IU.

FTP & SFTP (secure) - Upload/download files.

Telnet & SSH (secure) - Terminal connection to device.

Static / DHCP addressing - IP addressing ability.

These connections are available via copper or fibre Ethernet.

Secure protocols are default.

Logging & Communication

Temperature Monitoring

Qualitrol 509DW

LumaSMART

TMCS

OLTC Control

Eberly RegDA

TapCon

Bushing Monitoring

Doble IDD

GridSense Bushing IQ

Partial Discharge Monitoring

PD Power

PD Diagnostics

Iris

Consolidated Functionality

One Dynamic Ratings

Solution!

One manufacturer

One source for all products and sensors

One point of contact

One system to learn

One system to maintain

IED Communications

An integrated system perfectly suited to the SMART GRID

Common Problem

“How do we get the data back to

our network?”

iBridge IED Networking Solution

Our iBridge IED Networking Solution delivers a cost effective and robust networking solution for getting data from transformers and breakers to the control building.

● Affordable

● Secure

● Rapid to install

● Utilise existing cables / infrastructure

● Proven

iBridge IED Networking Solution

Installation

Simply snap inductive couplers around an existing cable (power / signal / protection) that runs between transformer and control room.

iBridge IED Networking Solution

Point to Point for quick links between 2 devices

iBridge IED Networking Solution

Please Come and Visit Us!

On display:

Transformer Management Systems

DR-E3 Series (engineered solution)

DR-C50 Series (configured solution)

Online Bushing Health and PD Monitoring

DM Series

Switchgear Monitoring

OPTImizer2

Communications

iBridge IED Networking Solution

Questions?