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Measure. Regulate. Across all grids. The right device for every application.

Voltage Regulation

Automatic Voltage Regulator, Tap Changer System

REG-D
REG-D
19" plug-in module, surface-mounted and panel-mounted housing
  • Various designs
  • Regulation and control of transformers with on-load tap-changers
  • IEC 61850, IEC 60870-5-101/103/104, Modbus, DNP 3.0
Technical Datasheet
REG-DA
REG-DA
Wall mounting, panel mounting and DIN-rail mounting
  • Metal housing
  • 100mm mounting depth
  • 2x Ethernet
  • MQTT IoT support
Technical Datasheet

Transformer Monitoring

Condition-based Power Transformer and OLTC monitoring

TrafoStick TS4x
TrafoStick TS4x
ONLINE Breakdown Voltage (BDV) Measurement – BDV Oil-Stick
  • Housing: EN-AW-6063 (aluminium)
  • BDV @20°C measurement accuracy: 1–5%
  • Water content (ppm) accuracy: 2.0%
  • Temperature (°C) accuracy: 0.1%
  • ONLINE, continuous condition monitoring of transformer oil
Technical Datasheet
TrafoStick TS5x
TrafoStick TS5x
ONLINE BDV + Dissolved Gas Measurement (H₂ & CO)
  • Housing: EN-AW-6063 (aluminium)
  • All TS4x measurements included
  • Additional: Hydrogen (H₂) dissolved gas measurement
  • Additional: Carbon Monoxide (CO) dissolved gas measurement
  • Paradigm shift: from manual sampling to ONLINE measurement
Technical Datasheet

Low Voltage Regulation

Dynamic Voltage Regulator, Line Drop Compensation, Voltage Stabilization

LVRSys Indoor
LVRSys Indoor
Indoor Low Voltage Regulator
  • < 30 ms response time
  • No grid interference
  • Highly efficient > 99.5%
  • Easy installation as cable distribution cabinet
  • -40°C to +50°C operating temperature
Technical Datasheet
LVRSys Outdoor
LVRSys Outdoor
Outdoor Low Voltage Regulator
  • Overload capable like NH fuse
  • High resistance to over voltages
  • Intuitive operating concept
  • Adjustable response time 30 ms to 100 s
Technical Datasheet

Short-Circuit & Earth Fault Indicators

Fault Detection, Earth Fault Locator, Short Circuit Analysis

EOR-1DS
EOR-1DS
Earth-Fault and Short-Circuit Indicator
  • Incl. Rogowski Coil Sensors
  • Compatible with low power sensors
  • Fault Recorder and Logbook
  • Modbus RTU
Technical Datasheet
EOR-3DS
EOR-3DS
For intelligent sub-stations
  • Panel/DIN rail mounting
  • 2x Ethernet
  • IEC 61850 GOOSE
  • Long-life Capacitor for >4h operation
  • Additional intelligent functions via free programmability
Technical Datasheet
I-Sense 3 & 4
I-Sense 3 & 4
Low Power Sensors
  • Compatible with EOR indicators
  • Low power consumption
  • Compact design
Technical Datasheet

Mobile Power Quality Analysers

Portable power quality measurement and analysis tools

PQ-Box 50
PQ-Box 50
Basic Mobile Power Quality Analyser
  • 1 GB data memory
  • IP65 protection
  • 20.48 kHz sampling frequency
  • WiFi connectivity
Technical Datasheet
PQ-Box 150
PQ-Box 150
Light to Expert Mobile Power Quality
  • 4 (32) GB memory
  • 4.5" display
  • 24-bit resolution
  • 4h bridging energy
Technical Datasheet
PQ-Box 200
PQ-Box 200
Expert Mobile Power Quality Analyser
  • 40.96 kHz / 4 MHz transient
  • 5 current inputs (24-bit)
  • RCM & FCM (accessories)
  • Temperature input PT100/PT1000
Technical Datasheet
PQ-Box 300
PQ-Box 300
Premium Mobile Power Quality Analyser
  • 409.60 kHz sampling
  • 8 (32) GB memory
  • 170 kHz harmonics
  • 4.5" display
Technical Datasheet

Fixed Power Quality Systems

Power Quality Loggers, Fault Recorders & Network Monitors

PQI-DA Smart
PQI-DA Smart
Fixed Power Quality Analyser
  • 1 (32) GB memory
  • 40.96 kHz / 40 kHz sampling
  • IP20 protection
  • 1.7" display
  • 2/2 Digital I/O
Technical Datasheet
PQI-DE
PQI-DE
Fixed Power Quality System
  • 1 (32) GB memory
  • Up to 40.96 kHz sampling
  • IP54 protection
  • 5.0" display
  • 8/4 Digital I/O
  • RCM & FCM support
Technical Datasheet