Operating range monitoring
- Facility Management
- Ventilation Systems
- cos phi
- Multiple fans driven by multiple motors are connected to a frequency converter. The internal monitoring systems in the frequency converter cannot recognise the failure of an individual fan.
- The permissible operating range of the electric motor for each fan is monitored with a cos phi monitoring unit using the “under” function. As soon as the cos phi leaves the acceptable range, for example because of a load reduction due to a defective V-belt or a dirty filter, the relay output is tripped, and the higher-level control system can recognise the fault.
- - Fast and low-cost monitoring, simple retrofit
- No sensor needed in the air channel – relevant for dust, heat and aggressive exhaust gases
- Lower maintenance requirements than for direct measurement in the air channel
- Measuring relay suitable for use with frequency converters
May I help you?
Can't find what you're looking for? Please don't hesitate to contact me.
This might be of interest for you
No entries found.
Controlling electric heater elements and infrared lamps
The combination of OVP1 and the space saving thyristorstack TST1-230 is perfect for controlling IR lamps and fast reacting heaters.
Furnace feed screw
Sequential control of 2 feed screws for a wood chip heating system.
Emergency power monitoring
Phase failure for the operating theatre ventilation systems in hospitals is to be recognized as quickly as possible and the system is to be switched over to an…
Re-cooling system monitoring
The overloading of the re-cooling systems in a data centre is prevented.
Sty ventilation system monitoring
The ventilation of a pigsty must be ensured. If the system fails, the animals could die.
Burner process control
A temperature limiter is installed in the process controller of a burner. When it is triggered, a fault message should be sent and maintained after the power is…