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The SWARTZ® Voltage Transducer is a high
performance, solid-state unit specifically developed to meet requirements for supervisory
control and data acquistion (SCADA) systems. The transducer is ruggedly constructed for
the transit substation environment and operates from DC "housekeeping" battery
supplies without use of separate AC inverters. |
 | "Power on" LED |
| Capable of 4000 VDC Overload for one minute |
| Overrange capability |
| Smooth saturation characteristics at range limits |
| High bandwidth to 1 khz |
| Bi-Directional |
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| Internal Power Supply operates on and auto-
compensates for a wide range of DC inputs |
| Magnetic link design; no aging deficiencies or temperature drift |
| Three-way isolation: power supply, input circuit, and output circuit |
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The Voltage Transducer is constructed on a flanged base and may be mounted
in any orientation. Electrical connection is via screw terminal barrier strips.
"Gain" and "Zero" adjustment trimpots are located on the top cover for
calibration or for setting intentional offsets. The input is +1 KV; full range. The output
is a bi-polar current source that tracks the input signal with current feedback located in
the positive output for best performance. The Voltage Transducer contains a resistor that
will sustain a 4000 VDC input for one minute.
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| Input Power:Operates on 24 - 125 VDC |
| Supply Current: 40 mA at 125 VDC, 200 mA
at 24 VDC |
| Ambient Temperature:-20°C to +55°C |
| Design Test:SWC ANSI/IEEE C37.90 |
| Input Dielectric:5400 VDC, 60 Hz, 1 min. |
| Output:-2 to +2 mA |
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| Output load impedance:0 to 10K ohms |
| Accuracy at 25°C:+ .5% fs |
| Temperature effect:+ .04% per °C |
| Load variation:+ .1% |
| Input range:-1K VDC to +1K VDC |
| Input transient maximum (1 min.):4K VDC |
| Scale factor:0-800 VDC = 0 to 1 mA (Other
factors available) |
| Input impedance:2 megohm |
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| Interface Diagram
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Relay Case Dimensions
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Click to Enlarge
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Click to Enlarge
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