Accusense® Voltage Sensor

Accusense® Voltage Sensors are a temperature compensated, capacitive-divider based voltage sensing technology. They are packaged as a line post sensor and have been tested to meet the 0.5 metering classification per the IEC 60044-7:1999 standard for electronic voltage transformers

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Features and Benefits

Configuration Details

  • Intelligent metering Viper® reclosers – High accuracy power quality measurement
  • Retrofit reclosers installed in the field – Fault location, isolation, service restoration (FLISR)
  • Stand-alone, high accuracy voltage metering
  • Meter at feeder, capacitor banks, end of line, and interties
  • Conservation Voltage Reduction (CVR) & Volt-VAR Optimization (VVO)
Ratings Chart for Accusence
Voltage Rating15/27kV38kV
Withstand Test Voltage60kV, 1 minute70kV, 1 minute
BIL170kV225kV
Weight4lbs9lbs
Accuracy Class0.5 Class (±0.5% Magnitude, ±0.344" Phase
Ratio5000:1 (V:V)
OutputLow Energy Analog (LEA), 8VAC (mas)
Temperature Range-40°C to +65°C
StandardIEC 60044-7:1999, IEEE C37.92-2005

Control Options:

SEL-651R2 Relay
The SEL-651R2 can be paired with the Viper®-ST recloser and Accusense® Voltage Sensors to provide protection and metering capability in one device. Analyze grid performance with real time data and event recording.

  • Fault waveform recording
  • 60 cycle length, 128 samples/cycle event reports
  • Waveform evaluation software
  • Sequence of Events (SOE) and Event History

SEL 734B Control
The SEL-734B can be paired with the Accusense® Voltage Sensors as a stone alone device or with a capacitor bank. The SEL-734B has an advanced Power Quality feature that enables frequency measurements up to 50th harmonic, 12 load data profile recorders, and up to 8kHz event sample capture rate. Analyze grid performance with real time data and event recording.

  • Fault waveform recording
  • Waveform evaluation software
  • Sequence of Events (SOE) and Event History

For Site-Ready Designs, Accusense® can be configured with:

Lightning Arresters:
Lightning Arresters can be integrated onto the frame with their primary wires connected to Accusense terminals with the ground strap connected.

Control Power Transformer:
Either an oil PT or a solid dielectric PT can be added to the Accusense® frame. The primary connection can be made to the Accusense® sensor and a hardwired or connectorized AC cable can be provided to connect to the control.

Fully connectorized control cable:
As default, the Diamondback is connectorized at the switch and the control with a robust 37 pin connector interface.

Product Literature

Accusense

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Case Studies

Voltage Sensor Retrofit on Recloser

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