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
Features and Benefits
High Accuracy 0.5% voltage sensors with capacitive divider technology
Safe, low energy analog (LEA) output
Compact and lightweight design
No calibration required
No cable length limitations
Serves power quality (volt-var/CVR), voltage transformer replacement, and DER applications
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)
Voltage Rating | 15/27kV | 38kV |
Withstand Test Voltage | 60kV, 1 minute | 70kV, 1 minute |
BIL | 170kV | 225kV |
Weight | 4lbs | 9lbs |
Accuracy Class | 0.5 Class (±0.5% Magnitude, ±0.344" Phase | |
Ratio | 5000:1 (V:V) | |
Output | Low Energy Analog (LEA), 8VAC (mas) | |
Temperature Range | -40°C to +65°C | |
Standard | IEC 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 standalone 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.