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Benefits - Integral Grid Protections
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Protective functions are built into the Capstone DPC, making external relays and contactors unnecessary. The digital power controller (DPC) employs a mechanical contactor and IGBTs that open and prevent import and export of power to the utility grid in the event of a grid disturbance. Integral protections include under and over-voltage, fast over and under-voltage, and over and under-frequency. Passive anti-islanding protection is based on detecting and disconnecting in response to a rate of change of frequency. Underwriters’ Laboratories (UL) has certified that the Capstone Model 330 protective functions perform in satisfaction of the New York Interconnection Standard. Reverse power flow protection, if required, can be achieved using a low cost pulse meter in conjunction with the integral Capstone control protocols, or by a conventional reverse flow protection relay. |
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