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Six Reliability Standards and one definition available for review

February 19, 2015

The following North American Electric Reliability Corporation (NERC) Reliability Standards are available for review:

· PRC-010-1 Under-Voltage Load Shedding Protection System

The purpose of this standard is to ensure that an integrated and coordinated approach is applied to the design, evaluation and operation of Under-Voltage Shedding (UVLS) Programs. This applies to the planning coordinator, transmission planners, transmission owners and distribution providers that own, operate or control UVLS equipment.

· PRC-004-2.1(a) Analysis and Mitigation of Transmission and Generation Protection System Misoperations

· PRC-004-4 Protection System Misoperation Identification and Correction

· PRC-005-2(i) Protection System Maintenance

· PRC-005-3(i) Protection System and Automatic Reclosing Maintenance

The purpose of standards PRC-004 and PRC-005 is to ensure that all transmission and generation protection systems are maintained and tested, and misoperations are analyzed and mitigated. This applies to generator owners and generator operators identified under inclusion 14 of NERC's Bulk Electric System (BES) Definition.

· VAR-002-4 Generator Operation for Maintaining Network Voltage Schedules

The purpose of this standard is to ensure that voltage and reactive power limits are maintained. This applies to generator owners and generator operators identified under inclusion 14 of NERC's Bulk Electric System (BES) Definition.

The deadline to apply to the Ontario Energy Board (OEB) for a review of the six above standards is June 14, 2015.

· "Remedial Action Scheme" Definition

A revised NERC definition of the term "Remedial Action Scheme" (RAS) is available for review. The proposed definition of RAS recasts the existing definition of Special Protection System to more precisely describe the objectives of the schemes. This definition applies to all functional entities.

The deadline is June 10, 2015 to apply to the Ontario Energy Board (OEB) for a review of the revised definition.

For details concerning the above proposed standards and revisions, please refer to IESO's OEB Review Process web page.

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