ABB SACE A division of ABB S.p.A. L.V. Breakers Via Pescaria 5, Bergamo - Italy Phone: Fax:

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1 ABB SACE A division of ABB S.p.A. L.V. Breakers Via Pescaria 5, Bergamo - Italy Phone: Fax: abb.com/lowvoltage Copyright 2017 ABB. All rights reserved. Specifications subject to change without notice. 1SDC200067B

2 LOW VOLTAGE Tender Specification for electrical cloud computing system

3 2 T E N D E R S P E C I F I C AT I O N F O R E L E C T R I C A L C LO U D C O M P U T I N G S Y S T E M The aim of this document is to provide outline specification of a cloud computing platform architecture able to satisfy supervision of electrical system and performance, analysis of relevant data and optimization of installation, control and implementation of energy management strategy. The system must be scalable, shall be able to collect data from main electrical LV components installed in main and sub-distribution switchboards, and shall establish cloud connection. Web clients can access to dashboard and data on web, where is possible to configure the system and customize reports and alarms.

4 ELECTRICAL STANDARDS 3 Electrical Standards Components shall be compliant to latest versions of following standards and regulations: IEC Low-voltage switchgear and controlgear Part 1: General rules IEC Low-voltage switchgear and controlgear Part 2: Circuit-breakers IEC Programmable controllers Part 3: Programming languages IEC Telecontrol equipment and systems Part 5-104: Transmission protocols Network access for IEC using standard transport profiles EC directives: Low voltage Equipment No. 2006/95/EC Electromagnetic compatibility Directive (EMC) No.2004/108/EC

5 4 TENDER SPECIFICATION FOR ELECTRICAL CLOUD COMPUTING SYSTEM Environmental characteristics Temperature: Operating temperature: -25 C C Storage temperature: -40 C C Environmental parameters: device shall comply with IEC (class 6C3) and IEC (class 3C2) Pollution degree: device shall be used in environments type PD3 Vibrations: device shall comply with IEC (1 mm displacement 1-13Hz, Hz with acceleration = 0.7 g).

6 FUNCTIONAL CHARACTERISTICS 5 Functional characteristics Supervision system shall be able to collect data from the field and, though Ethernet bus, store information in one system, accessible via Cloud. Data and parameters measured depend on electrical devices connected, in addition to monitoring of electrical magnitudes; system shall provide status and maintenance indicators, alarms and alerts. Main device of supervision system architecture is a communication module with an integrated software that behave as concentrator and gateway, allowing management of parts of electrical system located in different areas directly from web application. Scalability It shall be possible to design different architecture sizes, with adoption of one single communication module or it shall be possible to integrate more communication modules to supervise one electrical installation, according to number of devices interconnected and functionalities required. System shall have high degree of flexibility enabling the integration on electrical systems already installed with limited impact on existing architecture. System scalability shall ensure integration of new devices without requiring re-programming or re-configuration of the connected system. Electrical Devices It shall be possible to connect supervision system to electrical devices provided with communication protocols supported. It shall be possible to interconnect to cloud supervision system devices of type specified below: Air circuit breakers Moulded Case circuit breaker Metering devices Metering and monitoring device system for miniature circuit breaker Fusegear Digital Meters / sensors Analog Meters / sensors Arc flash protection system Communication Protection and metering devices shall be provided with standard communication protocols Modbus RS-485 or Modbus TCP/IP. Main communication module shall works as interface between electrical devices and cloud and shall be provided with Ethernet gate. System shall provide automatic monitoring of communication, and alerts shall be notified in case of communication problems. Data storage and notifications Supervision system shall have a data logging interval of 30 seconds to ensure a fast reaction in case of warning or alerts and a continuous measures for reliable efficiency analysis. Supervision system shall be designed to monitor following data, without storage limitation capability Consumption measures: Real time phase currents Voltages Active Power Reactive Power Apparent Power Active Energy Reactive Energy Apparent Energy Power Factor Peak active Power

7 6 TENDER SPECIFICATION FOR ELECTRICAL CLOUD COMPUTING SYSTEM Quality data THD Total reactive Power Voltage Unbalance Voltage Spike Voltage micro-interruption Voltage short Sage Voltage middle Sag Voltage long Sag Voltage short Swell Voltage Long Swell Maintenance data Contact wear Number of trips Total operations Manual operations It shall be possible to monitor status of devices and alarms. It shall be possible for web user to set up to 23 different alerts, identifying alerts for specific devices or on all devices, in order to schedule maintenance and to check health of installation. Alerts shall include: Phase and neutral currents Phase to phase and phase to neutral voltages Total active power Total reactive power Total apparent power Power factor Number of operations Contacts wear Trip coil disconnected Overtemperature Motor operator overtemperature Circuit breakers trip Any trip Status Open/ close It shall be possible to set alarms and define type of notification through SMS or for each user. Analytics and reports Supervision system shall be provided with web app with preconfigured widget to allow immediate overlook of plant consumption and analytics based on collection of data on selectable period of one day, one week, one month, one semester, one year or on custom period. Widget should be designed to display single or multi-site information and shall include both power utility consumption and power generated on site. Web app shall allow the creation and customization of digital representation of asset, allowing creation of synoptic representation of switchboard, importation of single line diagram or switchboards front view. It shall be possible to activate the graphics by connection with markers or tags, to easily access to device data. Export of data and trends in excel shall be possible both on-demand and via automatic report scheduling function. It shall be possible to generate reports for all information managed or generate customize reports selecting specific measures and devices. Benchmark on multi-site level shall also be possible in order to compare plants and systems and identify best practices. Commissioning and maintenance System shall allow final user or panel builder to execute the commissioning with the simple use of free software provided by manufacturer. Automatic recognition of devices shall be ensured so that there is no needs of programming and free software shall include wizard for commissioning directly from web. Free software provided by manufacturer shall allow execution of system implementation without requiring system integrator. Interface System shall be supplied with pre-set graphic pages with dashboard for immediate evaluation and management of power consumption. It shall be possible to display dashboard on tablet or smartphone. Security Authentication system shall be provided to access to data. Encrypted communication channel and certification for communication to cloud and

8 FUNCTIONAL CHARACTERISTICS 7 from cloud to web app shall be guaranteed. Encrypted communication channel and certification shall follow TSL protocol to ensure maximum safety level available. TSL protocol shall be provided embedded in the module for supervision and cloud connection. Level of users It shall be possible to define at least 4 different profiles for users. Only one of the users can be identified as owner. The owner shall sign up the EULA to start the data transmission and has the rights to renew licence of use. Only owner and administrator can send invitation to other users and have rights to change roles. It shall be possible to define staff profile with the rights to access to asset and device view, alerts view, analytics view and control view. It shall be possible to assign visitor profile for enabling users to access only to alerts view. Load Management Power Control Breaker shall allow management of active/passive loads by trip unit embedded software. Function shall be based on algorithm that allows a load list to be controlled. Control shall be possible through the remote command from the air circuit breaker to relevant switching devices according to a user default priority. Algorithm shall be based on a foreseen average power absorption calculation which can be set over a determined time interval; whenever this forecasted value is over/below the contractual power, the function intervenes to bring it back to the limits turning off/or the devices under control. Control system can be realized with: air circuit breaker with advanced protection trip unit operating as power controller and meter. Such a circuit breaker, installed as main LV breaker, implements the power control algorithm which manages the load connection and disconnection, equipped with auxiliary supply and electrical contacts, whose number depends on how many loads are managed; a variable number (from 1 to 15) of controlled LV apparatuses (air circuit breaker, molded case circuit breakers, miniature circuit breakers, switch-disconnectors or contactors, drives), each of them installed on the supply circuit of one of the loads subject to control. Each passive load or active generator/storage can be wired controlled in one of the following ways: for every air circuit breaker, shunt opening/ closing releases (YO / YC), automatic charging motor operator, a contact for electrical release tripped signalling and a contact for electrical open/closed circuit breaker signalling; for every molded case circuit breaker, shunt opening/closing releases (YO / YC) or motor operator, a contact for electrical release tripped signalling and a contact for electrical open/closed circuit breaker signalling; for every miniature breaker, motor operator; for every switches, shunt opening/closing releases (YO / YC) with automatic charging motor or motor operator and a contact for electrical open/closed manual switching signalling; every contactor with an auxiliary contact; every control/start circuit, own control interface. The main air circuit breaker uses the following input/output digital signals for every wired-controlled load: 1 digital input (mandatory) to get information about the open/closed state of the downstream device; 1 digital input (optional) to get information about the enabled/disabled state of the downstream device (or tripped state or redundant contact of state); 1 digital output to give the opening/closing command to the downstream device when it is a contactor or a control circuit; 2 digital outputs to give the opening/closing command to the downstream device when it is a circuit breaker or a switch-disconnector; 1 digital input can be optionally used for time synchronization with the smart meter of the Distribution System Operator.

9 8 TENDER SPECIFICATION FOR ELECTRICAL CLOUD COMPUTING SYSTEM In addition, the new family of air circuit- breaker or switch disconnector can be controlled via ABB property protocol (Ethernet Cable). By a dedicated software for PC, tablet, smartphone, the User must set a list of parameters: enable/disable, enabling or disabling power controller function; power limits, showing which is the average power (Pm) absorption not to be exceeded; setting this value is mandatory, whereas the others are optional and are needed to differentiate the power consumed in the various daily tariff bands; week scheduling, indicating the four tariff bands in which week days (Monday to Friday) are divided; saturday scheduling, indicating the four tariff bands in which Saturday is divided; sunday scheduling, indicating the four tariff bands in which Sunday is divided; synch configuration, indicating the presence and the reception channel for the synchronization signal of the smart meter; start-up behaviour, indicating which loads must be inserted in the list of the loads that can be managed at start-up; connection type, selecting the number of input for each load; - open/closed input, indicating to which kind of contacts the inputs for the open/closed state of the switching device are connected; optional input, indicating to which contacts the auxiliary input is connected; enable/disable, allowing load control to be disabled; shed priority, defining the priority with which the related load must be managed; it is represented by a number from 1 to 15 with decreasing priority of disconnection. There may also be more loads with the same priority: in that event, the algorithm proceeds to disconnect them alternately; ton_min, minimum time during which the load/generator must remain connected in order to protect it against too frequent start/ stop operations; it is possible to set a null time or a time in the range from 1 to 360 minutes with 1-minute step; - - toff_min, minimum time during which the load/generator must remain disconnected in order to protect it against too frequent start/stop operations; it is possible to set a null time or a time in the range from 1 to 360 minutes with 1-minute step; - - toff_max, maximum time during which the load can remain disconnected in order to protect the process managed against the damages caused by a prolonged lack of supply; it is possible to set a null time or a time in the range from 1 to 360 minutes with 1-minute step - - time window, time window in the space of the day during which the load cannot be disconnected; it is possible to set a time interval from 1 to 24 hours with 1-hour step; - - user type, type of user (load/generator); - - nickname, a string of 8 digits identifying the user.

10 MECHANICAL CHARACTERISTICS 9 Mechanical characteristics This part of outline specification describes the requirements for hardware to build up and perform functionalities in previous paragraph. To satisfy all installation conditions, it shall be possible to achieve monitoring and controlling functions by using a module embedded in air circuit breaker or by adoption of external module. Solution embedded in Air Circuit Breaker Module for supervision and cloud connection shall be provided as cartridge-type module to be mounted in terminal box of air circuit breaker, without requiring additional space in electrical switchboard. The module shall be connected to Ethernet switch via Ethernet cable. Solution with external module Module for supervision and cloud connection shall be provided as external module for DIN rail mounting. The module shall be connected to Ethernet switch via Ethernet cable. License and firmware update Transmission and access to data and analytics is set per license. License shall include automatic firmware upgrade and maintenance. Connection It shall be possible to connect to one embedded cloud module up to 50 devices through Modbus TCP communication protocol, 32 devices through Modbus RTU and 8 digital inputs. It shall be possible to connect to one external cloud module up to 100 devices through Modbus TCP communication protocol, 32 devices through Modbus RTU, 8 digital inputs and 8 analog input. System shall allow multi hub architecture to enable no limitation to number of devices monitored.

11 10 TENDER SPECIFICATION FOR ELECTRICAL CLOUD COMPUTING SYSTEM Additional information We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB AG does not accept any responsibility whatsoever for potential errors or possible lack of information in this document. We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction, disclosure to third parties or utilization of its contents in whole or in parts is forbidden without prior written consent of ABB AG.

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