STA Advanced Series – Partial Discharge for electrical motors and stators 2018-07-09T17:17:04+00:00
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Deep Insights into Winding Insulation

Partial Discharge measurements pave the way to higher quality and durablity of electrical motors and other winding goods by detecting quality faults in insulation.

Partial Discharges at a stator during sinus test voltage

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System Architecture

4 Models with different sources

You can choose between 4 models equipped with different sources. STA Sinus, STA Surge, STA Surge/Sinus, STA Pulse/Sinus.

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Basic, Advanced or Custom Safety

A basic safety unit is installed ex works. Consisting of emergency stop, start & stop buttons, warning lights and an interface for external safety circuits.

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Equipped with High Voltage Switching Matrix

The Switching Matrix allows the automatic switching of the different voltage sources and output connection configurations for various tests. Several test steps can be performed automatically without manual reconnection or reconfiguration of the test setup.

Partial Discharge Acquisition

Partial discharges are measured in the UHF range with high sensitivity. The attenuation against interference in the frequency range below 100MHz is very high, which allows measurements with various test voltages.

We offer the following 2 options for PD acquisition:

HF Antenna

High frequency PD acquisition at stators.
The antenna can be placed inside or near to the stator.

Multi Terminal Coupling Unit

The HFCT coupling unit is the best choice for mounted motors.

Safety First

Each STA Advanced model is equipped wit Basic Safety Features.
More complex safety requirements with many sensors can be achieved by our Custom Safety Unit SCU10, which offers a programmable safety control that can easily adapted to custom requirements in production environments.

More complex safety requirements can be achieved by our Custom Safety Unit SCU10. It offers programmable safety control that can be adapted to custom requirements in production environments.

Overview Safety Options

Basic (included)

Built-in
  • Emergency Stop
  • Start & Stop Buttons
  • Warning Lights

Advanced (for external safety guard)

SCU05
  • Emergency Stop
  • Start & Stop Buttons
  • Warning Lights
  • 1 external Safety Guard
  • External Emergency Stop
  • External Operation Panel
  • Dual channel sensor inputs with earth fault and short circuit detection

Custom (for special requirements)

SCU10
  • Emergency Stop
  • Start & Stop Buttons
  • Warning Lights
  • up to 5 external Safety Guard
  • External Emergency Stop
  • External Operation Panel
  • Dual channel sensor inputs with earth fault and short circuit detection
  • Customizable

Control Unit

All STA models are shipped with a control unit. It consists of a Microsoft Windows 10 64-bit PC with the installed and pre-configured Solfas Test Suite.

  • All-in-one PC

  • 21.5″ TFT Display

  • Windows 10

  • Intel Core i5

  • 1 Solfas Test Suite Licence

Learn more about Solfas Test Suite

We support you and take care of your product

We also help you after buying our products. Whether maintenance, support, repair or calibration, it does not matter, we care about you and your products.

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Model STA Sinus  STA Surge  STA Sinus/Pulse  STA Sinus/Surge
Sinus Output  5kV – 100mA – 500VA 5kV – 100mA – 500VA  
Surge Output 3kV 0.45J
6kV 1.8J with Option S6K
3kV 0.45J
6kV 1.8J with Option S6K
Pulse Output ±2.5kV uni-/bipolar
Output Rise Time 150ns/500ns selectable
Output Terminals <1%  4/7 with Option -7OT
PD Sensor High Frequency Current Transformer (HFCT) or HF Antenna
PD Detection Frequency Range 200 … 400MHz, Measurement range -60 … 0dBm
Safety Features Basic Features: emergency stop button, red and green warning lights, start and stop button, safety interlock connector
Interface Ethernet
Power Supply 80-260VAC, 45-65Hz, IEC C14 connector
Form Factor 19″ 12U 19″ 12U 19″ 16U 19″ 16U
Demensions HxWxD 589mm x 533mm x 600mm 589mm x 533mm x 600mm 767mm x 533mm x 600mm 767mm x 533mm x 600mm
Weight 48kg 38kg 63kg 61kg

ECM Extension

With this calibrated instrument the environmental air temperature, humidity and pressure are measured and included in the test report.

Temperature -25°C … +70°C
±0.5% of value ±0.1°C
Relative Humidity 0.0% … 100.0% RH
±2.5% RH Accuracy (at 11%-90% RH)
Air Pressure 10.0 … 1100.0 mbar
±1.5 mbar (at 750-1100 mbar)

WRM Extension

The WRM Option adds a precision winding resistance measurement to the system. This extends the STA to an full-featured stator test system.

AVM Extension

This option gives you the ability to measure the required test voltage details and export this data and plots to test reports by engaging an high power oscilloscope.  The voltage measurement can be connected directly at the stator or motor terminals and is done with a differential probe.

Channels Voltage + PD
High Voltage differential measurement up to 6kV
Bandwith 100 MHz
Resolution 14 Bit

GPDC10 Calibrator

The GPDC10 is a calibrator for PD measurements according to IEC60270 and IEC/TS61934.

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Surge Voltage 6kV Upgrade

This option extends the range of the surge voltage test from 3kV to 6kV.

Switch Matrix Upgrades

This options extends the number of switching matrix output terminals from 4 to 7. This allows the connection of stators with 6 terminals and frame. Switch matrix configurations with custom number of terminals are available on request.

Did not find your specs?
Let’s create your custom stator test system.

Contact us directly and allow us to advise you!

Bernhard Wede – Head of Engineering

Monday to Friday 9am-6pm

+49-30-36751954

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