Last updated: 14 Oct 2021 | 1255 Views |
SPI - SMART PRIMARY INJECTION TEST SYSTEM
The SPI system is the FIRST high current test systems to permit a user to type in a predetermined current and the SPI system will generate and regulate the requested high current without preheating the test sample by pulsing the output current at high currents.
The SPI system also has the unique ability to turn on at the current zero crossing every time for any load by automatically adjust the output firing angle.
Product features
■ Up to 2000A output
■ Smallest primary injection test system in its class
■ First unit on the market to eliminate variac control
■ Output current regulation
■ Designed for switchgear commissioning, circuit breaker, CT commissioning, ground grid and relay testing
■ Software includes thousands of circuit breaker TCC curves
Ground Fault Protection Testing per NEC 230.95(C) of Low Voltage Circuit Breakers
This application note will cover why primary injection is specified per NFPA70/NEC standards, the basics of Ground Fault (GF) testing, and the challenges associated with testing Low Voltage (LV) circuit breakers using primary injection