EuroSMC PTE-300V Secondary Injection Relay Test Equipment


The PTE-300-V equipment is a universal, portable, test system with three outputs to test Single and Three Phase protective relays. The equipment comprises of three independent output channels that can be selected as voltage or current. This enables the unit to be used as a complete single-phase equipment (Voltage, Current, and Phase Angle between them), or with channels synchronized, as a three-phase voltage or three-phase current generator from a single phase main input.

The unit is extremely compact and rugged. The design incorporates the latest in modern digital microprocessor technology to achieve unbeatable output characteristics in terms of power, accuracy, low distortion, and dynamic capability.

This technology allows users to test many different specific functions required in relay testing, without the need for additional accessories. All output signals are digitally generated , amplified, and internally controlled by the IGM’s (Intelligent Generator Modules), which interpret the orders received from the front panel to produce a highly accurate, stable, and low distorted output, independent of the voltage supply.


  • Variable Three-Phase Voltage to 3 x 300 volts or
    Current up to 3 x 8 amps.
  • Variable Phase Angle between 0° to 359.9° (Single or Three Phase).
  • Variable Frequency output between 40Hz to 420Hz.
  • Output Power: 3 x 100VA.
  • Reversible outputs.
  • Outputs are fully isolated and electronically protected.
  • Dynamic capability.
  • Completely programmable.
  • External Frequency or Phase Reference input.
  • External Timer Control output.
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  • Testing of Three and Single Phase Generation and Interconnection Relays.
  • Combined with Single-Phase Current Injection set, allows relay tests which require Three-Phase Voltage.
  • Can be used as a complete single phase unit in voltage, current, and phase as outputs are reversible (V, I, j).

The equipment also allows optional connection to a computer for either automatic testing of relays or control of the equipment using Windows compatible software. Even the adjustment and calibration of the equipment is made by software, supplied with the units, which permits calibration and/or adjustments in the outputs, without any manual hardware setting. (Closed Case Calibration) In summary, the PTE-300-V is equipment which offers all the characteristics and functions needed for protective relay testing, in a manual or automatic mode, and in laboratory and/or for on site testing.

Number of Channels 3
Interconnections Series or parallel
Current Ranges 0 to 0.330A / 0 to 8.000A
Voltage Ranges 0 to 6.25V / 0 to 150V / 0 to 300V
Harmonics Generated manual, up to 420Hz
Phase Angle 0° to 359.9°
Frequency Range Parametric: 40.00Hz to 420.0Hz / Transient: 0.5Hz to 5000Hz
Power per Channel 100VA
Accuracy ±0.5%
Distortion 1% max.
General Specifications
Power Supply 115V ±10%, 50/60Hz (specify)
230V ±10%, 50/60Hz (specify)
Auxiliary Voltage Out 110V AC / 0.3A max.
Operating Temperature 0°C to 50°C
Storage Temperature -20°C to 70°C
Dimensions 442mm x 327mm x 200mm
Weight 22kg
Standard Accessories
Power Cord 1.5m AC power cord
Test Leads 2-meter test lead set
Adapters 4-mm terminal adapters
Clip Set 4-mm crocodile clip set
Communication RS-232 communication cable
Interconnection PTE-BUS Interconnection cable
Fuses Set of replacement fuses
Connection Cable Coaxial BNC to 4mm connection cable
Carrying Bag Nylon bag for test set and accessories
Calibration Calibration software
Manual User manual in English
Certificate Certificate of Calibration
Ordering Information
Model Name Description
EuroSMC PTE-300-V Three-Phase Relay Test Set



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