• 23-kVA Primary Injection Test System up to 15,000 A
• Regulated high AC current output. Able to inject up to 3.8kA (with 3kVA) indefinitely or 9.5kA (with 2kVA) during 3s. Up to 15kA when combined with one or more slave units
• Regulated AC auxiliary output. Working in the current mode is capable of injecting up to 9 A indefinitely or 35A for 3s. Working in Voltage mode is capable of generating voltage up to 200V AC.
• Raptor SL features toroidal windings that are activated individually by the master unit as the power demand grows
• Through a sophisticated injection control that ensures seamless current flow and optimal workload distribution

The Raptor MS is the master unit of any Raptor configuration. It provides the connection for the touchscreen console and can be used as a stand-alone for primary test applications that do not require extremely high currents. When slave units are added, the MS will detect them automatically over the infrared link and will accommodate the system’s parameters with no intervention from the user.

The Raptor MS features a digital waveform generator driving a 3-kVA switching amplifier designed for a maximum 15 kA throughput. The amplifier’s output is applied to a toroidal winding that surrounds the Raptor’s pass-through hole internally. A concentrically aligned Rogowsky sensor measures the current inside the hole, providing continuous feedback to the amplifier for dynamic compensation of load or supply variations with an accuracy better than 1%.

In addition to the 20-400 Hz variable frequency and to the high current output which is common to all Raptor units, the MS features a 2000-VA auxiliary output that supplies up to 35 A in current mode and up to 200 V in voltage mode, as well as measuring inputs for external AC or DC, including a high sensitivity 0-3 V input. As an alternate method for trip detection, a binary input is also provided to monitor the activity of a dry contact or energized point in the object being tested. The input is sensitive to voltage for automatic mode switching. Finally, the MS includes a system expansion connector for future developments.

The factory- or user-defined test templates pick up only the necessary among all these test and measurement resources for each type of job, so that the user only needs to select a template from the menu and start the test. The standard list includes templates for circuit breakers, current transformers, trip testing, low impedance, ratios, reclosing, and many more. This approach provides a cleaner screen layout because the user is presented only with the data that is needed for each specific task.

All Raptors are powered by single-phase 240 VAC 50/60 Hz and include an automatic thermal-magnetic cut-off switch for protection against internal failures. A protective nylon cover featuring a generous pocket for accessories is also included as standard. This cover leaves the foldable handle and the wheels uncovered for easy transportation and can be quickly removed for work.

The slave Raptor is visually identical to the master unit but lacks the amplifier, the handheld controller and the auxiliary input/output panels. Its only mission is to push an additional 5 kVA power from the mains input to the high current pass-through secondary. Up to three slaves can be added for up to 15,000 A with a 18-kVA total injection power. The master unit detects the presence of slaves using infrared communications, so no additional control or power interconnections are required. The user only needs to pass the current conductor across the entire assembly and use it as if it was a single device. As an added benefit of the pass-through secondary technique, the user can easily multiply the compliance voltage by making more than one turn with the current conductor around the entire system. No need to disconnect / reconnect to separate output taps.

The Rapor SL features two toroidal windings that are activated individually by the master unit as the power demand grows. If two or more slaves are used, the master activates one toroidal in each unit first, then the second toroidal in all. This sophisticated injection control ensures seamless current flow and optimal workload distribution.