Monitoring system

Smart Transformer SolutionOpportunity

ORMAZABAL CURRENT AND ORMAZABAL COTRADISDecember 2014

Version 0.1

Ormazabal Smart Transformer Monitoringl

Commercial in Confidencewww.ormazbal.com

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ContentsORMAZABAL CURRENT AND ORMAZABAL COTRADIS ......................................1December 2014 ..........................................................................................................1

Version 0.1............................................................................................................11. Key Aspects of Ormazabal CURRENT Solution ...............................................22. LV Insite ...............................................................................................................3

2.1 Data ................................................................................................................32.2 Hardware ........................................................................................................4

3. OpenGrid Software / Applications .....................................................................93.1 OpenGrid Networking .....................................................................................93.2 OpenGrid Distribution ...................................................................................103.3 OpenGrid Metering .......................................................................................10

4. MVBPL - api-2000-sa Modem WAN COMMUNICATIONS ............................105. PRIME DATA CONCENTRATOR (DCU) Model 9710 PLCCOMMUNICATIONS.................................................................................................126. Recommendations............................................................................................137. APPENDIX A - OpenGrid Feature List ............................................................13

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1. Key Aspects of Ormazabal CURRENT SolutionWith regard the development of a smart transformer station, Ormazabal CURRENT(OC) has a family of product solutions that with ORMAZABAL COTRADISassistance, could be seamlessly integrated into existing designs providing customersa checklist of additional benefits and providing real differentiation from competitors.

With regards to a proposed Scope of Works, we would recommend the followingalternatives for COTRADIS consideration:

LV Insite - Three Phase Transformer Monitor; PRIME DATA CONCENTRATOR (DCU) Model 9710 PLC

COMMUNICATIONS FAN COMMUNICATIONS MVBPL - api-2000-sa Modem WAN COMMUNICATIONS OpenGrid Service Device management and data analytics engine.



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It should also be noted that OC also has a project underway to modernise theexisting portfolio starting by designing the core of the next generation architecture.The solution remains in sync with the position of the company products and strategicplan.The concept is a single unique single enclosure for all components to reduce costbut with an internal flexible design to allow for different configurations duringmanufacturing. The HW allows future integration with external modules. The currentconfiguration of the device will consist of a fix embedded Linux CPU board + powersupply plus expansion slots for:

Interchangeable chipset to detach the HW solution from different PLCprotocols and chipset manufacturers

Supervisory Meter Future needs (integration of communication devices for low cost wireless

integrated solution, integrated DIOM module, etc...)Product availability is scheduled for Q3-Q4 2015.In the interim as the base functionality remains consistent with what is described inthis document.A summary the OC solution that could be considered for the smart transformerstation follows.

2. LV InsiteThe LV Insite is not a standard meter. It is a purpose built transformer andmonitoring device focused on providing actionable intelligence from the distributionnetwork being designed with transformer environments in mind2.1 Data

OCs LV Insite is a true network edge device which can be user-configured to detectand/or alarm on a wide variety of power line conditions (e.g. sag/swell voltage, overcurrent or voltage interruptions). In normal operation the LV Insite resembles a datalogger continuously storing both measured and computed values over an extendedperiod of time. Queries to the device can retrieve any subset of stored data, forexample: True RMS phase voltage and currents Real, reactive and apparent power per phase Total harmonic distortion (voltage and/or current) Frequency TemperatureConventional power quality parameters (e.g. THD, crest factor, K-factor, harmonicmagnitude/phase) and 3-phase sequence analysis are also computed.



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Our OpenGrid NMS also provides standard analytics functionality such astransformer overload, voltage imbalance, current imbalance and high & low voltageexception reporting. Via its dashboard view, OpenGrid provides a high leveloverview of all the most problematic transformers in the network against userconfigurable parameters with a detailed segmentation of event types by transformer.OpenGrid will display the most recent Wye phasor diagram, harmonics to the 30thorder including tabular values and all 12 Fortescue symmetrical components phasealigned to Va.Measurement intervals may vary from 1 second to 7 days and are user configurableby individual device or globally. In addition to interval measurements, the solutionsupports percentage change data collection to enable better insight into networkchanges/disturbances based on a configurable delta between one interval loggeddata value and the preceding interval logged data value. For randomly changingmeasurement values, % change is a valuable tool. OC uses NTP to synchronizeelements across the network so that time stamped data are well aligned in time.Data may be stored on the LVA for up to 30 days when configured for a typicallogging interval of 5 minutes or more. The LVA also supports data persistence sothat even with a loss of power, data is not lost. On the resumption of power orcommunications connectivity, data will be pushed back to the NMS as per theconfigured service schedule. The LVA module has 1Gb of flash memory."The LV Insite can communicate concurrently to the hosted OpenGrid solution bySNMP, but also via DNP3 to the Principles scada or system optimization systems.This provides total flexibility, a redundancy option for some data but most importantlythe ability to segregate data between operational and non-operational data.2.2 Hardware

The device is IP65 rated per IEC 60529 with an associated mounting bracket thatenables simple and direct mounting to overhead poles without the need for separateenclosures. The primary benefit of this is that the monitoring device does not need tobe housed with a separate enclosure or switch board.Mounting options include

DIN Rail Mounting 210-0320-0001 x 1 per

Flush Mount 240-0619-0001 x 2 per



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Pole Mount 240-0553-0001 x 2 per

Coupled with OpenGrid Distribution the LV Insite provides a range of additionalreporting and alarming capability specifically designed with transformer monitoring inmind. Some examples of the actionable intelligence reports that improve gridreliability and asset management include the following:

Transformer Over/Under Voltage Reports: Detects transformer voltages thatare outside a configured threshold. Upon a configurable number of minutesfrom detecting a transformer over/under voltage condition, a report isgenerated and a notification sent to the Area Engineer.

Transformer load monitoring/overload detection. Improves system reliabilityby performing advanced analysis of transformer loading data to identifytransformers in danger of failure from acute or long duration overloads.



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Voltage Imbalance Report: Improves system reliability by reporting voltageson the low voltage secondary that are not within a configurable delta of eachother.

Secondary Load Current Imbalance Report: Allows the utility to improvesystem efficiency and reduce losses by reporting imbalance betweensecondary LV phases. Functionality also allows user to define sustained timeand recovery limits for imbalance existence to improve notification of long termimbalance. Formal imbalance expressed as the ratio of Fortescue sequencemagnitudes is also available.

Outage reporting. Allows the utility to reduce outage durations by providing anotification that a loss of voltage has been detected.

Identification of Max/Min Data Values: Lines signifying both the maximum andminimum data values for graphing

Complete frequency domain power quality analysis suite is included Aggregate statistics: A table of minimum, maximum, and average values for

each phase of every measurement type. The aggregation period and unit (day/ week / month) can be specified.

AC Hold-up with last gasp messaging The LV Insite solution supports automated asset discovery and notification

(AADN). This allows for assets within the transformer station connected to thechassis to be immediately discovered and interfaced with OpenGrid NMS.This simplifies commissioning and asset/inventory management.

The LV Insite voltage/power cable now has an inline disconnect / reconnectcapability. - This is implemented via an interlocking connector that can betwisted shut or open, will effectively break the single power cable into twoparts. This makes install and exchange much simpler with no need for anoutage. The interlocking connector also comes with an integrated fuse forprotection / isolation negating the need for the utility to add further protection.

Device support static IP address allocation, DHCP, static routing, ARP; The LV Insite supports data persistence so that even with a loss of power,

data is not lost. On the resumption of power or communications connectivity,data will be pushed back to the NMS as per the configured service schedule.

The LV Insite provides power quality data plus more. Configuring Sag and Swell monitoring. The configurable Sag settings include:

o Is Enabled



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o Nominal Voltage (V)o Trigger Level (%)o Recovery Level (%)o Minimum Duration (1/2 cycle)

Voltage and Current Harmonics to the 30th are provided including THD as well.

No line volts which is configurable e.g. 80% of nominal, to record poweroutage and restoration events;

Calculated RMS neutral current if no sensor is attached to neutral cable; Current Crest Factor Phases A, B, C, Neutral K-Factor Phases A, B, C Frequency measured from Phase A voltage Phasor Diagram Graph shown in OGD will display the most recent Wye

phasor diagram (including tabular values) and all 12 Fortescuesymmetrical components phase aligned to VA. In addition to presenting aPhasor diagram, Sequence Decomposition data the Phase Readings are



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provided in table format that easily export into Excel. The LV Insitesupports interval based and on demand power quality analysis;

OCs Rogowski coil current sensors provide high accuracy current sensing in theeasiest to install form factors. All current sensors are factory calibrated with relevantparameters stored in a small non-volatile memory housed with the sensor. Thisinformation is automatically read by the electronics when mated with each sensor. Nodata entry at all is required in the field. Each sensor also includes an integratedminiature digital temperature sensor. The integrated temperature sensor and storedcalibration factors allows the LV Insite to continuously provide extremely highaccuracy of measurements across full temperature range.The sensor portfolio includes several types and sizes of highly accurate Rogowskicoil current sensors. The Rogowski sensors form factor simplifies installation incongested or hard to access locations. The Slimline sensor is IP65 rated and issuited for indoor or outdoor installations. Additionally, both the Slimline and Flexiblesensors are available in multiple sizes ensuring the product fits on most low voltageconductors. The Slimline sensors can be installed on insulated and bare LV mains.The clamshell design makes for a very simple and "live" install. Sensors areconnected directly to the monitoring device using an IP65 rated USB style connector.With the slimline Rogowski insulation ring (shipped with each Slim Line Rogowski),we have demonstrated 600V CAT IV and 1000V CAT III compatibility. This meansthe sensors are rated to be installed on bare 230V mains. The sensor and insulationring is UV compliant.In addition to our existing range of Rogowski sensors, Ormazabal also has a purposebuilt CT Adaptor that could be used for example in new install transformers that comewith CTs already configured.The CTs are firmware configured for any N:5 ratio.



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The device comes with integrated quad band wireless modem within the IP65chassis.The LV Insite uses Sierra Wireless AirPrime MC870x Embedded Modules andsupports: WCDMA - 850/900/1900/2100Mhz; and GSM/GPRS - 850/900/1800/1900 MHzSierra Wireless also provides an upgrade path available now to LTE.The device has a standard Ethernet port that can also be used to connect to aservice provider's network third party device. The device has an RS-232 port which isreserved for the local console and can be helpful in some setup and debug situations.

3. OpenGrid Software / ApplicationsThe solution includes OpenGrid software that comprises:3.1 OpenGrid Networking

A Network Management System that manages OC devices and if required, third partydevices with compliant interfaces. It provides the user:

a view of all the devices in the network and their condition(s); ability to remotely manage all devices including running diagnostics &

executing remote firmware upgrades; the ability to schedule automatic activation devices receive instructions from

OG-N, exchange information & activate automatically. view the status of all devices in the network. For example the communication

status of each device such as communication loss. It also provides agraphical view and topology view of all assets in the network, status, softwareversions etc.;



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3.2 OpenGrid DistributionIs the enterprise software platform that enables the collection, visualisation andanalysis of sensor data, creating Actionable Intelligence the identification ofspecific and definable actions that respond to live problems, improve operatingefficiency, help mitigate aging workforce issues, lower energy losses, and avoidfailures before they occur. Actionable Intelligence defines the time, place, andspecific action that should occur, allowing either automated responses or thedispatch of crews directly to specific problems without a lengthy search and ensuringa speedy response directed at the problem. This approach can even identifyproblems before a customer may notice any change in their service. OpenGridDistribution incorporates remote configuration of devices to set threshold detection,alarming, and data variance detection. It also integrates with other utility databasesto provide normalised access to data to facilitate the development of advancedanalytics. This analytics platform provides linkages to the other utility systemsthrough application programming interfaces (APIs) and with information flow thatensures that existing systems benefit from the enhanced view of the state of thenetwork. OpenGrid Distribution enables a utility to take full advantage of the LVAwithout having to sort through streams of data.Appendix A includes a full OpenGrid Feature List3.3 OpenGrid Metering

OpenGrid Metering is a vendor-neutral Data Concentrator (DCU), enterprise classAMI data collection, management and analysis solution specifically developed forPLC based solutions. OpenGrid Metering collects aggregated meter data from eachDCU and forwards the data using standard interfaces (e.g., SOAP/XML) to otherutility enterprise systems, such as a Meter Data Management System (MDMS).

4. MVBPL - api-2000-sa Modem WAN COMMUNICATIONSMVBPL is a cost efficient communication solution utilizing the existing infrastructurethat supports applications from automatic Meter Reading to Distribution Automation.It is fully managed and controlled by the owner and can be integrated with othercommunication systems to realize an optimized bandwidth on demand solution forthe utilities entire footprint



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The Ormazabal api-2000-sa2 MV-BPL modem model 9136-2 is mounted in theMV/LV transformer station and can connect all devices in the transformer station tothe MVBPL network. The connection of the communication signal to the mediumvoltage cable is via a third party capacitive coupler. Two couplers per transformerstation is used in order to be independent of the medium voltage switch positions.The modem and couplers can be mounted as retrofit to existing switchgear as well asin new switchgear.

Our MV BPL modem has reached a high degree of maturity and offers severalbenefits:

It offers sufficient bandwidth to aggregate various utility data traffic generatedfrom a large quantity of substations.

It contains a built-in filter to support two frequency bands for seamlessdeployment. It contains a built-in splitter to enable the connection of two MVBPL Couplers directly without external components.

It supports High Availability solutions with multiple master and backhaulconnections to realize a scalable redundancy of the communication network.

It is easy to integrate into your utilitys core network.Our MV BPL api-2000-sa is a small, compact, stand-alone Medium VoltageBroadband Powerline communication product to extend communications overmedium voltage (MV) lines. Together with our MV BPL Coupler it provides a powerfuland field proven communication solution.Typical uses include:

AMI, bringing meter data from the transformer stations to the meter datamanagement system;



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Transformer monitoring, protection and control equipment in the transformerstation to the SCADA supporting e.g. remote operation and FLISRapplications;

Renewables generation connection to the monitoring and controlcommunication network;

Connectivity to EV infrastructureMV BPL is widely being adopted in Europe as a low cost, and reliablecommunications technology. By way of example Iberdrola has in excess of 5000modems so far installed and rapidly expanding.

5. PRIME DATA CONCENTRATOR (DCU) Model 9710 PLCCOMMUNICATIONS

The 9710 DCU provides: Data Concentrator used as the PRIME base node managing multiple meters

(PRIME switches and terminals) Supervisory Meter gathers and measures voltages and currents on the LV

segment via 3rd party CTs, that is transformer monitoring with power qualityanalysis;

Aggregates meter and measurement data Interconnects Northbound (WAN network to data center) via Ethernet interface Interconnects Southbound devices via PRIME PLC RF communications

across the LV conductors.The IDC is a self-contained unit that is DIN rail mounted with the following ports:1. Console Port Connect a PC to this port using console cable when configuring ortroubleshooting the device locally.2. Ethernet RJ45 port WAN port that connects to networking device typically arouter or switch used for backhaul connections.3. PLC Wire Ports N, U1, U2, U3 connect to the low voltage bus4. CT Wire Ports 01, 02, 03, 04 connect to the Current Transformer (CT) that isinstalled on the low voltage bus.5. PLC PRIME Repeater BNC port connects to a PRIME Repeater via coaxial cable.6. LED on the face indicates the box is energized



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6. RecommendationsRecent discussions have highlighted the prospective synergy that could be derivedthrough joint collaboration in delivering our customers a true smart transformerstation.It is recommended:

ORMAZABAL CURRENT and ORMAZABAL COTRADIS jointly identify aproject that could be leveraged as the enabler for defining the smarttransformer solution. That is transitioning from concept to reality.

Project target should be a renewables project as the timelines andcomplexities may be less than dealing with utility customers.

Nominate a small project team from both groups to define, document andarticulate a prospective solution and go to market plan;

Nominate an executive project sponsor.

7. APPENDIX A - OpenGrid Feature ListOPENGRID NETWORKING (OG-N)

PROVISION AND CONFIGURATION Automatically detects the NMS through DHCP Auto Provision Auto network allocation through network pools Routing protocol management (BGP, OSPF and RIP V2) Automatically push down all network configuration ( no manual configuration required ) Network Services Management through WEB GUI



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o TFTPo FTPo SCPo DHCPo RADIUS

Global Parameters with per device overrides Guaranteed configuration change through Configuration Status

ASSET MANAGEMENT Tree View List View with Advanced Search(Search by almost anything) Folder to organize devices (Supports Drag/Drop) Auto discovery CURRENT devices through proprietary protocols Auto discovery third party devices through LLDP Graphical Asset display Full configuration display through XML

MONITORING Fully schedulable health check Fully schedulable reboots Fully schedulable commloss recovery Fully schedulable statistics collection 10 Deployment states to accommodate different schedules for all the services Tracks status history

SOFTWARE UPGRADE Software release management through WEB GUI On-demand Software upgrade with build-in retries Multi-step upgrade (Upgrade to interim version first if needed) Bulk Software upgrade multiple devices Auto software upgrade (Upgrade devices to desirable versions before activated the device)

ALARM/EVENT HANDLING Forward alarms/events to SNMP Trap Managers (V1, V2c and V3) Email alarms/events through SMTP ( supports SMTP authentication) Forward alarms/events to Enterprise Service Bus(ESB) through JMS All alarms/events are filterable per destination (Trap Manager, Email Address and JMS Queue/Topic) Overlay some alarms in Current MapView Dynamic alarm/event dashboard view with advanced filtering capability

DIAGNOSTICS



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Ping SNMP GET sysUpTime Traceroute(CURRENT DEVICE only) Device TECHDUMP(CURRENT DEVICE only) Wireless RSSI/CINR display

GRAPHING AND MAPVIEW Dashboard view for the summarized status of the whole network Full MV-BPL layout display with Link Qualities/AGC Values display Graphing of SNR, BPC and FOM for MV-BPL devices Full Prime layout display with Goodness, RX Level, Connection info, Out/Retry Packets and Alarm

States) Graphing of full set of PRIME statistics Overlay PRIME nodes on CURRENT MapView CURRENTs own Map tile server no need to fetch MAP tiles from external map provider such as Google,

Bing or OpenStreetMap.

REPORTS On Demand and Schedulable Reports Software Version Report Uptime Report PRIME Performance Report Wireless RSSI, CINR and detailed Signal Report Extensible Report Framework

OPENGRID METERING (OG-M)

DASHBOARD VIEW Displays Daily Absolute/Daily Incremental and Daily Billing success rate for today Graph Displays Daily Absolute/Daily Incremental and Daily Billing success rate for the last 15 days Device Status Summary Meter status summary

SOFTWARE MANAGEMENT Manages Meter Software (PRIME and DLMS) from multiple meter vendors Manages Data Concentrator Software Manages Meter Software Upgrade Manages Data Concentrator Software Upgrade

PRIME STG-CD API SUPPORTSupports STG-CD API versions:



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2.1 3.0 3.1 3.1c

DATA CONCENTRATOR AND METER MANAGEMENT Tree View with folder support for flexible organization of DCs and meters List View with Advanced search MapView for PRIME nodes DC parameter Configuration DC Programmed Task Configuration Retrieve and display DC running configuration Retrieve and display meter running configuration Remote connect/disconnect meters On Demand Meter Read Parses and store Daily Incremental/Daily Absolute and Daily Billing data

REPORTS On Demand and Schedulable Reports Meter Hourly kWh Readings Report Meter Daily kWh Readings Report Meter Persistent Failure Report Meter Daily Billing Report Meter Monthly Billing Report

OPENGRID DISTRIBUTION (OG-D)

DASHBOARD VIEW Device State Summary Device Alarm State Summary Top 10 Violators for Last 15 days Transformer Monitoring Summary Event Statistics Filterable Event display

CONFIGURATION Group devices into Configuration Groups Low Voltage Analytics Device

o Device Interval Collection Configurationo Device % Change Data Collection Configurationo Device threshold Properties Configurationso Device SAG Configurationo Device Energy Collection Configuration



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Medium Voltage Analytics Device (Fault Detector)o Device SAG Configurationo High Current Fault Configurationo Sensitive Earth Fault Configuration

OpenGrid Event Detection Configurationo Transformer Overload Detection Configurationo Substation Transformer Overload Detection Configurationo Transformer Outage Detection Configurationo Load Imbalance Detection Configuration(Voltage and Current)o Transformer Failure Detection Configurationo Voltage Exception Detection Configurationo No Recent Data Detection Configurationo Measurement Data Averaging Configuration

GRID Tree view according to electrical hierarchy List view with advanced search Standard Data Types (Three phase + Neutral)

o Voltageo Currento Real Powero Reactive Powero Apparent Powero Power Factor

Advanced Data Typeso Voltage THDo Voltage Crest Factoro Neutral Currento Current THDo Current Crest Factoro K-Factoro Frequencyo Temperature

Fault Data Types ( MVA/Fault Detector Only) Graph

o Graph any two data types ( all three phases + neutral) in one grapho Zoom-in/Zoom-outo Graph large data set using summarized datao Displays harmonics contents (both Voltage and Current) up tp 50th Harmonicso Displays Phasor Diagram

Map Viewo Overlay Feeder/Switch/Recloser/Conductor/Transformer/LV Feeder on CURRENT MAP tileo Overlay alarms on CURRENT MAP tileo Overlay data reading on CURRENT MAP tileo Filter devices based on feeder and substation

Data Exporto Individual device data export



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o System wide data export

OPENGRID ADMINISTRATION Integration with Active Directory or other existing LDAP servers Build-in LDAP server if not integrating with Active Directory Log level Control OpenGrid Version History Service Schedule Control Server Diagnostics Data Cleanup Control Network Service Configuration(TFTP,FTP,DHCP, RADIUS) User Management

o Create/Modify/Delete Usero Assign User to roleso Lock/Unlock Usero Reset user passwordo Set password expiration dateo Set grace login retries

XML IMPORTSupports bulk import OG-N, OG-D

Key Aspects of Ormazabal CURRENT SolutionLV InsiteDataHardware

OpenGrid Software / ApplicationsOpenGrid NetworkingOpenGrid Distribution OpenGrid Metering

MVBPL - api-2000-sa Modem WAN COMMUNICATIONSPRIME DATA CONCENTRATOR (DCU) Model 9710 PLCCOMMUNICATIONSRecommendationsAPPENDIX A - OpenGrid Feature ListOPENGRID NETWORKING (OG-N)PROVISION AND CONFIGURATIONASSET MANAGEMENTMONITORING SOFTWARE UPGRADEALARM/EVENT HANDLINGDIAGNOSTICSGRAPHING AND MAPVIEWREPORTS

OPENGRID METERING (OG-M)DASHBOARD VIEWSOFTWARE MANAGEMENTPRIME STG-CD API SUPPORTDATA CONCENTRATOR AND METER MANAGEMENTREPORTS

OPENGRID DISTRIBUTION (OG-D)DASHBOARD VIEWCONFIGURATIONGRID

OPENGRID ADMINISTRATIONXML IMPORT

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