OTI and BWY oil temperature controllers
Transformer Oil Temperature Indication
Measure top-oil temperature at the specified thermometer pocket and coordinate local indication, cooling contacts, alarm outputs and remote signals.
Solutions for oil-immersed transformers
Transformer Temperature Monitoring Solutions
Measure top-oil or winding temperature, control cooling equipment, send data to your control system or replace an existing BWY or BWR controller.
Start with the job the instrument must perform. INNO can help you compare local indicators, cooling and alarm contacts, Pt100 or 4-20 mA outputs, RS485 monitoring and replacement options.
What Do You Need to Monitor or Control?
Choose the closest requirement to see suitable product families and the information needed for selection.
WTI and BWR winding temperature controllers
Transformer Winding Temperature Control
Apply transformer-specific current-related thermal simulation for winding indication, fan control, alarm and protection interfaces.
Local indication and optional remote condition data
Distribution Transformer Temperature Monitoring
Combine durable local indication with the contact and remote-data functions required for compact or unattended distribution installations.
Pt100, 4-20 mA and RS485 signal paths
Renewable Substation Remote Monitoring
Carry clearly identified top-oil and simulated winding values from field instruments to the RTU, SCADA or plant monitoring platform.
Contact logic and functional verification
Transformer Cooling, Alarm and Trip Control
Coordinate contact assignments, set points, switching duty and interposing relays for cooling stages, alarm and protection logic.
Model matching and documented changeover
Transformer Temperature Controller Retrofit
Replace an installed BWY or BWR controller by comparing the complete model, terminal map, scale, sensing system and mounting interface.
How to Choose the Right Product
An oil temperature indicator measures top oil at the thermometer pocket. A winding temperature indicator adds a load-current-related thermal rise to show simulated winding temperature.
Decide what should happen when temperature rises
The controller may start fans or pumps, trigger an alarm, provide a trip input or send a temperature value to a PLC, RTU, SCADA system or remote display. List each required action before choosing the number of contacts and signal output.
Match the product to the transformer
Send the full model, range, contact functions, output, power supply, capillary, sensing bulb, thread and mounting details. A complete model code is especially important for BWY and BWR replacements.
Sales and engineering support
Request a Solution Recommendation and Quote
Tell us the transformer type, required temperature range, contact functions, output signal, capillary length, quantity and destination. We will help you identify a suitable model and send the available technical documents.