Fluid indicator
Mechanical short-circuit indicators
The fluid indicator is a mechanical short-circuit indicator designed to detect short-circuit currents in medium-voltage distribution networks.
The indicator is tripped by a magnetic field strength “H” which is induced by trip values I>>. When a short-circuit occurs, the mixer is pulled up by the magnetic field, stirring up red particles in the fluid.
The indication resets automatically after six to eight hours once the red particles have set to the bottom of the mixer.
Product features
- Mechanical design
- Installation on cables or busbars
- Fault indication by fluid with red coloured particles
- Retrofit ready
Your added value
- Universal use
- Automatic reset
- Maintenance-free, no battery
Technical data
| Fluid indicator | |
|---|---|
| Short-circuit indicator | ✅ |
| Earth fault detection method | Earth short-circuit |
| I>> Short-circuit current trip current | 400, 600, 1,000 A (factory setting) |
| tI>> Response delay | 200 ms at rated trip value (100 ms are available on request) |
| Accuracy | ±20 % |
| Reset | Automatic reset by time after approx. 6 — 8 h |
| Housing | Housing and housing fastening screws made of polyamide, yoke made of ferromagnetic steel |
| Temperature range | -40 °C to +85 °C |
All important documents for the device
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Matching articles
PERFECT MATCH
Here you will find the matching equipment set and accessories for this item. All components are technically matched to each other and guarantee optimum functionality. For customer-specific requirements and individual offers, please contact our sales department.
Equipment set
- 1 Fluid indicator
Other short-circuit and earth fault indicators
ComPass A 2.0
- Load current monitoring
- Detection of earth faults and short circuits for NOSPE/ KNOSPE networks
- Fault indication without directional information
ComPass B
- Highly accurate monitoring
- Detection of earth faults and short circuits for all distribution networks
- Remote signaling via RS485 / Modbus interface
ComPass B 2.0
- Highly accurate monitoring
- Detection of earth faults and short circuits for all distribution networks
- Directional fault indication
ComPass Bs 2.0
- Fault direction indicator with monitoring
- Detection of earth faults and short circuits for all distribution networks
- Switching ComPass Bs 2.0 for controlling a switch-disconnector or circuit-breaker remotely