BWY2
BWY2 Transformer Oil Temperature Indicator
An OTI gauge for transformer top-oil temperature indication, adjustable cooling and alarm contacts, and remote measurement output.
BWY2 specificationsBWY and BWY2 manufacturer and supplier
Transformer Oil Temperature Indicators (OTI)
Select an OTI for local transformer top-oil indication, cooling control, high-temperature alarm and compatible remote measurement.
A transformer oil temperature indicator, or OTI, senses oil temperature at a thermometer pocket in the upper oil region. BWY and BWY2 models provide local indication and can operate contacts for transformer cooling or alarm functions.
Compare Available Models
Check the measuring range, contact functions, output signal and mounting details for each model.
BWY-802 / BWY-803
BWY-802/803 Oil Temperature Controller
A transformer top-oil temperature controller with local indication, Pt100 remote signal and adjustable control contacts.
BWY-802 / BWY-803 specifications
BWY-D804AITH
BWY-D804AITH Digital Oil Temperature Controller
A digital-capable transformer oil temperature controller with multiple switch contacts, Pt100 and current-signal options for local and remote monitoring.
BWY-D804AITH specificationsHow to Select a Transformer Oil Temperature Indicator
Start with the required top-oil scale and the thermometer pocket. Then define the number and purpose of cooling or alarm contacts, Pt100 or 4-20 mA output, capillary route, bulb dimensions, M27 × 2 thread and outdoor installation conditions.
Start with the temperature you need to monitor
Use an OTI for transformer top-oil temperature. Use a traditional WTI when the project requires simulated winding temperature based on top oil and transformer load. If you need data in a PLC, RTU, SCADA system or remote display, specify Pt100, 4-20 mA or RS485.
Check the installation before choosing a model
Send the transformer type, existing model, measuring range, contact duty, power supply, capillary length, sensing bulb, thread and mounting dimensions. For a replacement, include clear photos of the nameplate, dial, terminals and installed capillary.
Order by the complete model code
BWY, BWY2, BWR and BWR2 model suffixes can identify different contacts and outputs. Compare the full code with the latest datasheet, outline drawing and terminal diagram before placing an order.
For remote signals and wiring, see substation transformer monitoring and the transformer temperature controller wiring guide.
Sales and engineering support
Request Transformer Oil Temperature Indicators (OTI) Datasheet 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.