Arizona Administrative Code
Title 14 - PUBLIC SERVICE CORPORATIONS; CORPORATIONS AND ASSOCIATIONS; SECURITIES REGULATION
Chapter 2 - CORPORATION COMMISSION - FIXED UTILITIES
Article 26 - INTERCONNECTION OF DISTRIBUTED GENERATION FACILITIES
Section R14-2-2622 - Interconnection to a Secondary Spot Network System
Universal Citation: AZ Admin Code R 14-2-2622
Current through Register Vol. 30, No. 38, September 20, 2024
A. A Secondary Spot Network System is a system that:
1. Simultaneously serves a
Customer from three-phase, four-wire, low-voltage (typically 480V) circuits
supplied by two or more network transformers which have low-voltage terminals
that are connected to the low-voltage circuits through network protectors
without ties to adjacent or nearby secondary network systems;
2. Has two or more high-voltage primary
feeders that are either dedicated network feeders that serve only other network
transformers, or non-dedicated network feeders that serve radial transformers
in addition to the network transformers, depending on network size and design;
and
3. Has automatic protective
devices and fuses intended to isolate faulted primary feeders, network
transformers, or low-voltage cable sections while maintaining uninterrupted
service to the consumers served from the low-voltage circuits.
B. Because interconnecting a Generating Facility to a Secondary Spot Network System implicates technical requirements that are particular to the design and operational aspects of network protectors that are not required on radial systems, the Utility shall determine the process for interconnecting to a Secondary Spot Network System, subject to the following:
1. A Generating
Facility shall not be interconnected to the load side of spot network
protectors unless the Generating Facility uses an inverter-based equipment
package and, together with the aggregated other inverter-based generation, does
not exceed the smaller of 5% of the Secondary Spot Network System's maximum
load or 50 kW; and
2.
Interconnection of a Generating Facility shall not result in a Backfeed of a
Secondary Spot Network System or cause unnecessary operation of any Secondary
Spot Network System protectors.
Disclaimer: These regulations may not be the most recent version. Arizona may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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