SPI4000 smart primary injection test system
Primary injection test set for protective relay equipment and circuit breakers
Primary injection test set for protective relay equipment and circuit breakers
Key Benefits
- Space-efficient power for testing even in the tightest quarters
- High current capacity
- Exceptional mobility, guaranteeing your testing equipment is ready and onsite when you require it
- Effortless precision with automatic zero crossing
Description
The SPI4000 is a high current primary injection test system with the flexibility to test, via primary injection, a wide variety of devices, including low voltage power circuit breakers, moulded-case circuit breakers equipped with thermal magnetic or electronic trip devices, overcurrent relays, and thermal relays. Designed to accommodate circuit breakers with ratings of up to 4000 Amps frame size, the SPI4000 fully complies with NEMA AB-4 test guidelines.
The SPI system is the first high current test system that allows you to type in a predetermined current amplitude and will then generate and regulate the requested high current without preheating the test sample by pulsing the output current at high amplitudes. Additionally, the SPI system has the unique ability to turn on at the current zero crossing every time for any load by automatically adjusting the output firing angle. This eliminates DC offset for all circuit breaker types and eliminates the need for you to determine and manually adjust the firing angle for various loads and circuit breakers.
Frequently Asked Questions
How can the SPI4000 be loaded in a van, truck, or trailer?
The SPI4000 can be lifted with a forklift using the under carriage of the unit. Additionally, straps or chains could be attached to the unit’s lifting eyes. For ease of loading in vans or trailers, there are two eye hooks on the side that allow the SPI4000 to be hoisted up a ramp.
What type of wheels are on the SPI4000?
We offer two models. One model features wheels similar to the DDA units, which are solid wheels. These wheels are great for concrete floors and will not go flat. The second model is equipped with pneumatic wheels, which are recommended for navigating rough terrain.
Do existing DDA breaker stabs work with the SPI4000?
The SPI4000 comes with an adaptor plate that allows existing DDA stabs to work with the unit. It also has a connection point for flexible stabs.
Can the SPI4000 work with a 240 V input?
The SPI4000 is autosensing and will detect and operate on 240 V. You don’t need to change taps or anything else as the unit will autosense input voltage.
What size generator is recommended to be used with the SPI4000?
We recommend that you use a 150 kVA or larger generator with the SPI4000. Nevertheless, the SPI4000 can generate sufficient current to test most breakers, even with a generator as small as 75 kVA.
Can the SPI4000 be used on a portable generator?
The SPI4000 was tested on generators of various sizes and exhibited no operating issues. When operating on generator power, the limiting factor for output current will be the generator’s output voltage. During high current tests, the generator’s voltage regulator will respond to voltage fluctuations in an effort to maintain the output voltage. Any reduction in the SPI’s output capacity will be proportionate to the extent of the voltage drop. For example, if the generator’s voltage experiences a 10 % drop, this will result in an approximate 10 % reduction in the output.
How many amps can the unit provide through a 4000-amp breaker.
The SPI4000 has been tested with several different 4000-amp and 3200- amp breakers using the CBS2 or CBS3 stabs, and in all cases the unit was able to deliver 40 000 amps.
