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Monitoring device

ZIEHL-ABEGG control technology makes industrial fans more efficient, safer and more reliable: The ZIEHL-ABEGG monitoring device for temperature sensors can also be used for monitoring explosion-proof motors with ATEX and IECEx approval. For temperature monitoring on dry transformers, the MSF220VU uses an intelligent fan controller to automatically extend the fan's run-on time depending on the load situation. When used in dry transformers with forced cooling, the Trafosafe TS1000 monitors the temperature of the transformer, regulates the cooling with up to 6 fans in parallel mode, signals when a pre-warning temperature is exceeded, and switches off the transformer if necessary. The TR440 monitors up to four sensors simultaneously (e.g. three windings and the core).

MSF220VU
TS1000
TR250
TR440

MSF220VU

The MSF220VU is ideally suited for temperature monitoring on dry transformers. It features intelligent fan control, which automatically extends the fan's run-on time depending on the transformer load situation. Monitoring of the sensors for short-circuit and disconnection provides extended protection against false tripping.
 

Properties:

  • Supply: AC/DC 24…240 V 50/60 Hz
  • 3 PTC thermistor circuits
  • Connectable PTC thermistors: 3 x 1…6 in compliance with DIN 44081 or 44082 below 4,000 Ω
  • 1 relay (NO contact) for fan control
  • Alarm 1 in no-load current design (changeover contact) for advance warning, simultaneous function monitor
  • Alarm 2 in load current design (changeover contact), no fleeting make contact
  • Sensor monitoring
  • LED for: ON, sensor fault, alarms, fan
  • Test button for outputs
  • Built-in device for mounting on top hat rail 35 mm

Further versions:

TS1000

The Trafosafe TS1000 is used on dry transformers with forced cooling. It monitors the temperature of the transformer using 3 PTC thermistor circuits, controls the cooling (up to 6 fans of max. 4A each) depending on the load, reports when an advance warning temperature is exceeded and switches off the transformer if the temperature continues to rise. When monitoring the transformer using Pt100 sensors, the TS1000 operates as a pure fan controller.
 

Properties:

  • Supply: AC/DC 24…240 V 50/60 Hz
  • 1 PTC thermistor circuit for fan control / control with external contact when used only as fan controller
  • Automatic extension of fan running time at high load
  • Monitoring of fans for faults (excess / insufficient current adjustable)
  • Adjustable, automatic fan test (1-30 days)
  • Transformer temperature monitoring: 2 PTC thermistor circuits, 1x each for advance warning and switch-off, 1x with monitoring for short-circuit and disconnection
  • 2 PTC thermistor circuits for PTC monitoring of fans
  • Connectable PTC thermistors: 5 x 1…6 in compliance with DIN 44081 or 44082 below 4,000 Ω
  • Relay (changeover contact) for advance warning in no-load current design = Function monitor and relay (changeover contact) for switch-off in load current design = No fleeting make contact
  • LEDs for: ON, sensor fault, alarms, fan
  • Test button for function

TR250

The TR250 can simultaneously monitor up to 3 sensors for up to 3 limit values. Different Pt100, Pt1000, KTY83/84 or PTC thermistor sensors can be connected and evaluated.
 

Properties:

  • Supply: AC/DC 24…240 V 50/60 Hz
  • Choice of 3 sensor inputs: PT100/1000 (2 or 3 wire), KTY83/84, PTC thermistor
  • Sensor monitoring for disconnection and short-circuit
  • 3-digit digital display for sensor temperature -199...+850 °C
  • Resolution 0.1 °C programmable in range -19.9…+99.9 °C
  • Storage of minimum and maximum values
  • Programmable using 3 buttons
  • LED for sensors, alarms, relays
  • 3 relays (changeover contacts) programmable:
  • Switching functions
  • Differential temperature monitoring
  • 6 preset standard programs

TR440

The TR440 can monitor up to 4 sensors (Pt100). For example, three windings are monitored, the 4th sensor monitors the core. Four relays (changeover contacts) are used for advance warning, to switch off the transformer and/or to control a fan. The room temperature in the installation room can also be controlled. Network integration possible, RS485 interface, MODBUS RTU
 

Properties:

  • Supply: AC/DC 24…240 V 50/60 Hz
  • 4 sensor inputs 4 x Pt100 in compliance with EN 60751 / IEC 60751
  • Sensor monitoring for disconnection and short-circuit
  • 3-digit digital display for sensor temperature -199...+850 °C
  • Storage of minimum and maximum values
  • Programmable using 3 buttons
  • LED for sensors, alarms, relays
  • 4 relays (changeover contacts) that operate according to the 4 selectable programs
  • Built-in device for panel mounting

Transformers