4.1 ERMUSR 02-13-2018 - Laserfiche WebLink

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SCHEDULE 3—INTERCONNECTION PROCESS,TECHNICAL REQUIREMENTS,AND OPERATING PROCEDURES to prevent this from occurring. It is the Interconnection Customer's responsibility to provide a final design and to install the protective measures required by the Area EPS. The Area EPS will review and approve the design, the types of relays specified, and the installation. Mutually agreed upon exceptions may at timesbe necessary and desirable. It is strongly recommended that the Interconnection Customer obtain Area EPS written approval prior to ordering protective equipment for parallel operation. The Interconnection Customer will own these protective measures installed at their facility. (c)The Interconnection Customer shall obtain prior approval from the Area EPS for any revisions to the specified relay calibrations. C) Commissioning Testing The following tests shall be completed by the Interconnection Customer. All of the required tests in each section shall be completed prior to moving on to the next section of tests. The Area EPS operator has the right to witness all field testing and to review all records prior to allowing the system to be made ready for normal operation The Area EPS shall be notified, with sufficient lead time to allow the opportunity for Area EPS personnel to witness any or all of the testing. i) Pre-testing The following tests are required to be completed on the Generation System prior to energization by the Generator or the Area EPS. Some of these tests may be completed in the factory if no additional wiring or connections were made to that component.These tests are marked with a"*" (1)Grounding shall be verified to ensure that it complies with this standard,the NESC and the NEC. (2)* CT's (Current Transformers) and VT's (Voltage Transformers) used for monitoring and protection,shall be tested to ensure correct polarity, ratio and wiring (3)CT's shall be visually inspected to ensure that all grounding and shorting connections have been removed where required. (4)Breaker/Switch tests —Verify that the breaker or switch cannot be operated with interlocks in place or that the breaker or switch cannot be automatically operated when in manual mode. Various Generation Systems have different interlocks, local or manual modes etc. The intent of this section is to ensure that the breaker or switches controls are operating properly. (5)* Relay Tests—All Protective relays shall be calibrated and tested to ensure the correct operation of the protective element. Documentation of all relay calibration tests and settings shall be furnished to the Area EPS operator. (6)Trip Checks - Protective relaying shall functionally tested to ensure the correct operation of the complete system. Functional testing requires that the complete system is operated by the injection of current and/or voltage to trigger the relay element and proving that the relay element trips the required breaker, lockout relay or provides the correct signal to the next control element.Trip circuits shall be proven through the entire scheme(including breaker trip) For factory assembled systems, such as inverters the setting of the protective elements may occur at the factory. This section requires that the complete system including the wiring and the device being tripped or activated is proven to be in working condition through the injection of current and/or voltage. Interconnection Process for Distributed Generat o9Systems