Topic:"Grid Modernization" in M03413

Interconnection Facilities, Network Upgrades and Distribution Upgrades

AI summary The heading introduces the regulatory discussion on interconnection facilities, network upgrades, and distribution upgrades, focusing on infrastructure requirements for integrating renewable energy and modernizing the electricity grid in Nova Scotia.

(b) Other Network Upgrades: - 1. 77V Conway Substation - 1. Under-frequency load shedding scheme on 12kV distribution reclosers

AI summary The section outlines network upgrades, including the 77V Conway Substation and an under-frequency load shedding scheme on 12kV distribution reclosers, aimed at enhancing grid reliability and managing power distribution during low-frequency events.

2. 13V - Gulch Substation - 1. Bi-directional transfer trip channel to/from the Digby Wind Farm for islanding protection, status and tripping. - 2. Transfer trip and block close logic to perform the following: - a) Send a transfer trip to...

AI summary The Gulch Substation (13V) requires upgrades including bi-directional transfer trip channels with Digby Wind Farm, relay replacements, communication enhancements, and removal of underfrequency load shedding. Modifications aim to improve protection, monitoring, and system reliability.

4. 11 V - Paradise Substation - 1. Triggers for 51V special protection scheme (including outputs from L-5025 line protection; breaker llV-504 b contacts; protection trips from llV-GT51/B51) - 2. Transfer trip channel from 11 V -Paradise to...

AI summary The document outlines technical upgrades for Paradise Substation (51V special protection triggers, transfer trip channels, metering upgrades) and Tusket Substation (reactive compensation equipment including capacitor banks, circuit breakers, and reactors). These measures aim to enhance grid reliability and capacity.

5. Revenue Metering Nova Scotia Power will install revenue metering at the customer's interconnection substation. This will include: secondary wiring, test switch, energy meter and commissioning. The revenue class, Measurement Canada appro...

AI summary Nova Scotia Power will install revenue metering at the customer's interconnection substation, including secondary wiring, test switches, energy meters, and commissioning. The customer will supply and install Measurement Canada-approved CITs and provide a phone line for remote data access. Line losses to the 77V Conway Substation will be compensated.

9W - Tusket Substation At the 9W Tusket substation, Nova Scotia Power will install a new 8.5 MVAr capacitor bank complete with breaker, surge arresters and current limiting reactors which will provide one stage of a two stage switched capa...

AI summary Nova Scotia Power plans to upgrade the 9W Tusket substation with new capacitor banks, circuit breakers, and reactors as part of a two-stage switched capacitor scheme. The project includes modifications to existing infrastructure and layout changes, detailed in Appendices D and F.

The under frequency protection on L-5533 at Gulch will be retired and replaced with under frequency protection at 77V Conway. The metering at 13V Gulch will be upgraded to accommodate the increased power flow due to the new Digby generatin...

AI summary The document outlines infrastructure upgrades and protection system modifications at multiple substations in Nova Scotia, including the retirement of under frequency protection at Gulch and the installation of new protection schemes at Tremont and Paradise substations to accommodate increased power flow from the new Digby generating facility.

Each 34.5 kV collection feeder will be provided with a protective device, each complete with phase and ground over current protection functions to trigger tripping. Transmission Engineering prepared by: Tím Leopold, P.Eng. Customer Operati...

AI summary The document outlines the installation of protective devices on 34.5 kV collection feeders, including phase and ground overcurrent protection functions. It also mentions the preparation and approval of engineering and operations documents related to a power system, including controls and alarms at an interconnection point.

Facilities Study Infra- Structure Report Date: 2009-07-31 Rev. no.: 0 System D escription 5,0 Design aspects of the scope of work described 69 kV line design, the telecommunication for the engineering and drawing production for all in Sect...

AI summary This document is a Facilities Study from 2009, detailing the design and engineering aspects of a 69 kV line, telecommunication systems, SCADA RTU design, and an interconnection substation. It includes information on voltage levels and is prepared by Tim Leopold, P.Eng., with approvals from various departments.

Date: 2009-07-31 Rev. no.: 0 System em Description One set of metering is required for each generation connection to the new ring bus or existing

AI summary The document specifies that one set of metering is required for each generation connection to the new ring bus or existing infrastructure.

during the off frequency when Nova Scotia is suddenly islanded from New Brunswick. Also the System Impact Study finds the following new system issues due to the addition of IR141 generation facility: - 1. Exceed metering rating on the foll...

AI summary The System Impact Study (SIS) identifies critical grid issues from adding the IR141 generation facility, including metering overloads, voltage violations under contingencies, and insufficient reactive power support. Upgrades are required, such as relocating load shedding schemes and installing a 6 Mvar capacitor bank. These findings highlight infrastructure planning and system reliability challenges.

According to NSPI's present records: - L-5533, L-5531, L-5532, and L-5535 are rated 23MVA summer and 34MVA winter, whereas L-5541 is rated 31MVA summer and 45MVA winter. - L-5533 and L-5531 metering at 13V-Gulch is rated 18MVA. L-5026 mete...

AI summary NSPI's records detail transmission line ratings and post-IR141 issues, including overloads and voltage violations. Solutions proposed include upgrading meter ratings, installing SPS/SVC, and modifying capacitor banks. Appendices and report sections (10, 12) provide technical details on stability analysis and resolutions.

With the SVC modelled at the 69kV bus at 9W-Tusket, the simulations show that the system is stable and well damped for all the contingencies considered for light load, summer peak, and winter peak as can be seen on Appendix_5. With a combi...

AI summary The document discusses system stability simulations with an SVC and switched shunts at the 69kV bus at 9W-Tusket, showing stability across various load conditions. Voltage set points and time delays for the shunts are outlined for further design and commissioning.

Grid: Cleaner and Stronger To increase the grid's capacity to absorb intermittent energy from wind and tidal sources, the province will continue to encourage the use of locally-produced natural gas—a cleaner, quick-responding fuel that is...

AI summary Nova Scotia aims to enhance grid capacity for intermittent renewable energy (wind, tidal) by promoting locally-produced natural gas as a balancing fuel. Studies will support grid upgrades and interconnection with the North American grid.

adjust, the COMFIT program in 2012, to ensure that we learn from our experience and ensure that the objective of supplying 100 MW through community/ small-scale renewable electricity projects is met. Government is proceeding in this manner...

AI summary Nova Scotia's COMFIT program aims to supply 100 MW through community/small-scale renewable projects, addressing system challenges akin to highway planning. Eligibility is limited to local entities to ensure community investment retention. The program includes wind, biomass, and other renewable sources with cost-recovery rates.

Electricity Transmission and Distribution in Nova Scotia Adding more renewable electricity to the transmission and distribution systems requires careful planning to maintain system reliability. This is particularly true because most of the...

AI summary Integrating renewable energy into Nova Scotia's grid requires careful planning due to intermittency and infrastructure needs. Meeting the 2013 Renewable Energy Standard may necessitate load management and modest transmission upgrades, while exceeding it demands larger investments. NSPI will analyze opportunities under NERC and FERC standards, seeking stakeholder input.

The Role of Imports and Exports Nova Scotia does not have abundant supplies of untapped hydro power, but nearby provinces do. One way to increase the renewable portion of our energy supply would be to import clean electricity from Newfound...

AI summary Nova Scotia lacks sufficient local hydro power but can import clean energy from neighboring provinces. Seasonal demand fluctuations create opportunities for exports, though current transmission infrastructure is inadequate. Expanding interconnections with New Brunswick and New England, along with grid upgrades, is critical for integrating renewable energy and managing intermittency.

Smart Technologies A smart grid delivers electricity using digital technology to manage a customer's energy use. For example, a smart grid could turn on domestic hot water heaters only at night, when demand is slack and the cost of produci...

AI summary NSPI plans to use a federal Clean Energy Fund grant to test smart grid technologies in Nova Scotia, focusing on integrating these systems with customer loads and intermittent renewables. The project aims to analyze smart grid impacts on consumer behavior and real-time demand control, emphasizing benefits like cost reduction and reliability improvements.

Work Planned for Next Week Continue commissioning work of electrical systems. Complete sub station electrical work.

AI summary The upcoming week's work includes continuing the commissioning of electrical systems and completing substation electrical tasks. These activities are part of ongoing infrastructure development and maintenance efforts.

5.1.10 Transmission Line to Power Grid A 69 kV transmission line will link the Project from the onsite substation to the NSPI substation in Conway. Approximately 10.6 km of aboveground pole-mounted 69 kV distribution line will be installed...

AI summary A 69 kV transmission line will connect the project to NSPI's Conway substation via Route 217, spanning 10.6 km. The line may impact soil, vegetation, wildlife, cultural resources, and land use. Table 5.9 summarizes potential environmental effects of the transmission line installation.

• power systen n stability simulation s and the corresp onding excitation s system and PSS constants for use in

AI summary The text mentions power system stability simulation, excitation systems, and PSS constants, suggesting a discussion related to grid modernization and system reliability.

- .3 Aspects of design and installation pertinent to success of CX. SkyPower Corporation Digby Wind Power Project Contract 090630.00 General Commissioning (CX) Requirements Section 01 91 13 Page 4 June 2009 1.6 PRE-CX REVIEW (Cont'd) .2 Du...

AI summary The document outlines key aspects of design and installation relevant to the success of commissioning (CX) for the Digby Wind Power Project. It emphasizes the need for coordination, preparation of CX plans, completion of installations, and submission of documentation to the Owner's Representative.

- .7 Training of staff by factory representative Commissioning and start-up to be conducted by factory trained technician. SkyPower Corporation General Commissioning Section 01 91 13 Digby Wind Power Project (CX) Requirements Page 19 Contr...

AI summary The document outlines the requirement for staff training by a factory representative during the commissioning and start-up process, which must be conducted by a factory-trained technician. It references the Digby Wind Power Project and Contract 090630.00.

- .1 Confirm proper installation as per design drawings. SkyPower Corporation General Commissioning Section 01 91 13 Digby Wind Power Project (CX) Requirements Page 20 Contract 090630.00 June 2009 3.7 DISCIPLINE: .10 (Cont'd)

AI summary The text provides a directive to confirm proper installation according to design drawings, referencing the Digby Wind Power Project and Contract 090630.00 under General Commissioning requirements.

- .2 Confirm switches installed on latch side of doors. SkyPower Corporation General Commissioning Section 01 91 13 Digby Wind Power Project (CX) Requirements Page 22 Contract 090630.00 June 2009 3.7 DISCIPLINE: .20 (Cont'd)

AI summary The text references a requirement to confirm switches installed on the latch side of doors as part of the general commissioning process for the Digby Wind Power Project under Contract 090630.00.

3.7 DISCIPLINE: .29 Uninterruptible Power Supply - ELECTRICAL TO .1 Verify UPS performance meets specification. - BE COMMISSIONED .2 Provide factory representative testing of this - .3 Verify system maintenance procedures and demonstrate t...

AI summary This section outlines the requirements for verifying the performance of an Uninterruptible Power Supply (UPS), including factory representative testing, system maintenance procedures, training, test results, certification, commissioning by trained technicians, and warranty documentation.

- .3 Confirm wiring installed in accordance with specification. SkyPower Corporation Commissioning Forms Section 01 91 33 Digby Wind Power Project Page 1 Contract 090630.00 June 2009 PART 1 - GENERAL

AI summary This document section outlines a requirement to confirm that wiring is installed in accordance with specifications, related to the Digby Wind Power Project under Contract 090630.00.

SECTIONS - 1.2 RELATED .1 Section 01 10 00 General Requirements. - .2 Section 01 91 13 Commissioning (Cx) Requirements. - .3 Section 01 91 41 Commissioning Training. - .4 Appendix A1 Commissioning Forms. - 1.3 INSTALLATION/ .1 Include the...

AI summary This section outlines commissioning requirements, including installation and start-up checklists, training, and forms. It emphasizes the use of standardized checklists by installers and the role of the Owner's Representative in providing project-specific commissioning forms.

- .1 Start-up, operation, maintenance and shut-down of equipment they have certified installation, started up and carried out performance verification tests. SkyPower Corporation Digby Wind Power Project Contract 090630.00 Commissioning Tr...

AI summary This section outlines the training requirements for the operation, maintenance, and emergency handling of equipment at the Digby Wind Power Project. It emphasizes safety, reliability, and efficiency, and details the training materials and scheduling procedures.

TYPE - 2.9 FRAMES: WELDED .1 Welding in accordance with CSA W59. - .2 Accurately mitre or mechanically joint frame product and securely weld on inside of profile.

AI summary The document outlines welding standards for frames, specifying that welding must be performed in accordance with CSA W59 and that frame products must be accurately mitred or mechanically jointed and securely welded on the inside of the profile.

of commissioning. SkyPower Corporation Digby Wind Power Project Contract 090630.00 Common Work Results - Electrical Section 26 05 00 Page 5 June 2009 .2 Arrange and pay for services of manufacturer's factory service engineer to supervise s...

AI summary The text outlines contractual obligations for the installation and commissioning of electrical systems at the Digby Wind Power Project, including the arrangement of manufacturer's factory service engineers for start-up supervision and ensuring proper operation and maintenance training for personnel.

accurate to position intended, and position hanger SkyPower Corporation Digby Wind Power Project Contract 090630.00 Common Work Results - Electrical Section 26 05 00 Page 10 June 2009 3.2 NAMEPLATES AND LABELS .1 Ensure manufacturer's name...

AI summary The document outlines specifications for electrical installations, including requirements for nameplates, conduit installation, and outlet placement, as part of the Digby Wind Power Project by SkyPower Corporation.

- .3 Install bushing stud connectors in accordance with EEMAC 1Y-2. SkyPower Corporation Digby Wind Power Project Contract 090630.00 Wire and Cables (0-1000V) Section 26 05 21 Page 1 June 2009 1.5 CERTIFICATES .1 Obtain inspection certific...

AI summary The text provides installation instructions for bushing stud connectors in accordance with EEMAC 1Y-2 and includes details about obtaining inspection certificates and using CSA C22.2 No.65 approved aluminum power lug type compression connectors for conductors.

Standard of Acceptance: Burndy CUW-R-E. .2 Aluminum dead-end clamp type compression connectors

AI summary The document references a standard of acceptance for a specific type of electrical connector, the Burndy CUW-R-E, and mentions aluminum dead-end clamp type compression connectors.

ely SEL-487E for transformer protection, and SEL-351S for 34.5xV breaker protection and control. - .8 A programmable automation controller SEL-2411 shall be used for substation control. - .9 A communications processor SEL-2032 shall be ins...

AI summary The document outlines the specific equipment to be used for transformer protection, breaker protection and control, and substation control, including the installation of a communications processor in accordance with design drawings.

2.2 EQUIPMENT .1 General - IDENTIFICATION .1 Every Protection, Control and Communication Panels shall be provided with securely fastened external rating nameplate and identifying nameplate.

AI summary This section outlines the requirement for external and identifying nameplates on protection, control, and communication panels to ensure proper identification and secure fastening.

.1 ANSI/IEEE C57.12.90 Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating .2 ANSIC29.9, Wet-Process Porcelain Insulators SkyPower Corporation Digby Wind Power Project Contract 090630.00 Outdoor Substation Section 26...

AI summary The document outlines technical specifications for the Digby Wind Power Project, including requirements for materials, delivery, storage, and protection coordination in the outdoor substation. It references various standards and specifications for electrical components.

2.6 FACTORY TESTS .1 Recloser - - .1 All standard tests as defined by Section 7.0 of the ANSI/IEEE Standard - .2 Auxiliary Devices - .1 Current Transformers - .1 All Current Transformers shall be tested in accordance with CSA Standard C13...

AI summary This section outlines the factory tests required for reclosers, including tests for current transformers and bushings, as defined by various ANSI/IEEE and CSA standards. These tests ensure compliance with industry standards and include dielectric voltage, accuracy, and ratio testing.

.2 General - .1 The 69 kV Revenue Metering Units shall be outdoor, single phase, oil- filled metering unit approved by Measurement Canada for revenue metering. The Metering Units shall have two fully insulated coils for both current and vo...

AI summary The document outlines specifications for 69 kV and 34.5 kV Revenue Metering Units and Potential Transformers, including requirements for outdoor installation, insulation, and acceptable materials such as oil-filled and dry, molded epoxy.

- 2.1 INSTRUMENT .3 69 kV Metering Unit and 69 kV Potential Transformer - (Cont'd) .1 The overall construction of the 69 kV Metering Unit and 69 kV Potential Transformer shall be corrosion resistant. - .2 The Metering Unit and the Potentia...

AI summary The text outlines technical specifications for 69 kV Metering Units and Potential Transformers, including materials, construction, and insulating media requirements, emphasizing corrosion resistance, durability, and compliance with industry standards.

.3 Identifying Nameplate - .1 The DC Uninterruptible Power Supply System equipment shall be provided with individual nameplates, engraved on 3mm thick plastic lamicoid, with the function of the equipment and Owner's numerical designation.

AI summary The document specifies that DC Uninterruptible Power Supply System equipment must have individual nameplates made of 3mm thick plastic lamicoid, including the equipment's function and the Owner's numerical designation.

3.1 FIBER OPTIC .1 General - INSTALLATION .1 Installers who are responsible for the Fiber installation shall be Corning certified. - .2 The Contractor who is responsible for the Fiber installation shall be prepared, upon request, to presen...

AI summary This section outlines the requirements for Fiber optic installation, emphasizing Corning certification for installers, adherence to Corning standards, proper cable handling, and compliance with electrical and safety codes.

Page Client: Date: Project Name: Prepared By: Section Project Number: Tested By: DEF'Y NO. DESCRIPTION (REFER TO REPORT PAGE NO.) CORRECTIONS CHECKED BY DATE COMMENTS List of Deficiencies Field Test Report Digby Wind Project UARB IR-12 Att...

AI summary This document contains field test reports and structure inspection reports related to the Digby Wind Project under UARB IR-12. It includes details on visual inspections of power cables, insulators, conductors, clamps, and other components, along with phasing diagrams and structure inspections.

BILL OF MATERIALS Date Office Title: A30e each STATION-CLASS, POLYMER-HOUSED, GAPLESS METAL-OXIDE VARISTER DISTRIBUTION-CLASS SURGE ARRESTER, 180.0kV MCOV, DESIGNED TO IEEE Std. C62.22, TESTED TO IEEE Std. C62.11, 675N-m CANTILEVER STRENGT...

AI summary The document presents a Bill of Materials listing various surge arresters, including their specifications, quantities, and suppliers. Each entry details technical standards such as IEEE C62.22 and C62.11, along with the manufacturer, HUBBELL.

Base System Ratings: .1 Dynamic VAR Compensation – steady state, MVAr To be provided by Vendor .2 Dynamic VAR Compensation – short time, MVAr To be provided by Vendor .3 Switched Static Shunt Capacitor Banks, MVAr To be provided by Vendor...

AI summary The document outlines technical specifications for dynamic VAR compensation, switched static shunt capacitor banks, power inverter assemblies, system control, monitoring, and shunt capacitor banks. Key parameters include reactive power capability, efficiency, harmonic profiles, voltage control, and communication protocols, with many details to be provided by the vendor.

2.1 General - 2.1.1 The Vendor shall submit for approval to the Engineer comprehensive Site Testing and Commissioning procedures for the Reactive Power Static Compensator (STATCOM) System. - 2.1.2 The Vendor shall indicate and include any...

AI summary The document outlines detailed procedures and requirements for the testing and commissioning of a Reactive Power Static Compensator (STATCOM) system, including qualifications for the testing team, test conditions, and reporting requirements. It also includes specifications for capacitor banks, connection transformers, and inverter power electronic blocks.