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Megger SPI500 Smart Primary Injection Test System

Megger
SKU: MEGGSPI500
  • 2500A continuous, expandable to 6500A, with constant current under load changes
  • Automatic zero-crossing switching removes DC offset for precise results
  • Touchscreen or PC control with both manual and automated modes
More Info
Price Available Upon Request
Made to order

Megger SPI500 Smart Primary Injection Test System

The Megger SPI500 Smart Primary Injection Test System redefines high-current testing in substations by providing unmatched performance in precision, control, and portability. Delivering a continuous 2500A output and scalable up to 6500A with optional boosters, the SPI500 dynamically adapts its current output sub-cycle to maintain constant current, even as circuit impedance shifts during testing. This capability is essential when working with self-powered reclosers that rapidly change impedance. With automatic zero-crossing switching and firing angle control, the SPI500 eliminates DC offset, ensuring ISO/NEMA-compliant, instantaneous trip accuracy, even at peak load change moments.

The SPI500 is built for use in the field, with rugged instrumentation, integrated safety features, and intuitive operation, offering versatile control via touchscreen, PC, or both. Manual tests can be launched from the optional Smart Touch View Interface (STVI), or trigger fully automated test sequences using onboard software loaded with factory TCC curves. The package includes modular boosters for higher currents, robust design protections, and high-speed reporting. The SPI500 is a compact powerhouse which has been engineered specifically for reliable circuit breaker, relay, fuse, and transformer testing in substations.

Megger part number: SPI500

Ordering Options

The SPI225 can be customised entirely to suit the specific needs required, with the graphic below showing how to build a model and the options that are available to you.

Key Features

  • Continuous output of 2500A, expendable to 6500A with optional boosters
  • Maintains constant current during impedance changes, ideal for self-powered reclosers
  • Automatic zero-crossing switching and firing angle control to eliminate DC offset
  • Complies with ISO/NEMA standards for instantaneous trip accuracy
  • Rugged, portable design with integrated safety features for field use
  • Operable via touchscreen, PC, or both, with manual or automated testing modes
  • Supports automated test sequences with onboard TCC curves
  • Includes modular boosters, robust protections, and high-speed reporting

What's In The Box?

  • Megger SPI225
  • Accessory carry case (2001-487)
  • Red alligator clip (684006) & Black alligator clip (684007), both 4.1mm
  • Sleeved pair of test leads with retractable shroud, one red & one black (2008-539-2)
  • 1 x 61cm AWG #6 lead (1004-728)
  • 2 x 2ft AWG 2/0 leads, one red and one black (1008-280 & 1008-279)
  • Power cord, depending on the style number selected:
    - Line cord, North American (620000)
    - Line cord, Continental Europe with CEE 7/7 Schuko Plug (50425)
    - Line cord, international colour coded wire (15065)
    - Line cord, United Kingdom (900002-989)
  • Ethernet cable, 210cm (7ft) long (90003-684)
  • SPI software and manual on USB stick
Specification
  • Output Current (Continuous) – 2,500A from main unit
  • Output Current (with 2 boosters) – up to 6,500A
  • Dynamic Regulation – Maintains output within one cycle under load changes
  • Switching Method – Zero DC offset, automatic firing angle adjustment
  • Control Options – STVI touchscreen or PC automated testing/report generation
  • Protection – Fuse, circuit breaker, and temperature monitoring
  • Input Voltage – 120V or 240V (auto-detect); boosters require 208-240V
  • Design – Rugged, portable construction for field use
For extensive specifications, view the attached datasheet.
Label Type Size Download
pdf Megger SPI500 Datasheet pdf 3.1 MB Download