Reliable Measurement for Power Generation
Power generation facilities depend on accurate temperature measurement for equipment protection, efficiency optimization, and regulatory compliance. From gas turbine compressor discharge to condenser hotwell temperature, every measurement point plays a role in maintaining plant reliability and maximizing heat rate.
Thermometrics manufactures temperature sensors specifically designed for the harsh operating conditions found in combined cycle, simple cycle, coal-fired, and renewable power plants. Our ISO 9001:2015 certified quality system ensures consistent performance across large quantity orders for plant-wide instrumentation upgrades and new construction projects.
High-Vibration Construction
Sensors for rotating machinery feature spring-loaded elements, vibration-dampening mineral insulation, and armor-cabled leads that withstand continuous vibration levels found on turbine-generator sets. Our bearing RTDs are specifically designed to maintain positive thermal contact under vibration per IEEE C57.12 and IEEE 841 requirements.
Plant-Wide Standardization
Thermometrics can supply a complete temperature sensor package for your plant — from turbine bearing RTDs to cooling tower basin thermocouples — under a single purchase order with consistent documentation and calibration standards. Volume pricing available for plant-wide orders.
Power Generation Applications
Our temperature sensors monitor critical equipment throughout the power generation cycle, from combustion and heat recovery through electrical generation and distribution.
Gas Turbines
Compressor discharge, combustion liner, turbine inlet, and exhaust temperature monitoring. Type K and N thermocouples for hot gas path monitoring up to 1100°C. Multi-point thermocouple rakes for turbine inlet temperature profiling to detect combustion anomalies.
Steam Turbines
HP, IP, and LP turbine casing, gland seal, crossover, and exhaust hood temperature monitoring. RTD sensors for bearing pedestal temperature with alarm setpoints per OEM recommendations. Embedded RTDs for stator winding temperature monitoring.
HRSGs & Boilers
Superheater, reheater, economizer, and drum temperature monitoring for heat recovery steam generators and package boilers. High-temperature thermocouples with ceramic protection tubes for furnace zone measurement. Multi-point assemblies for tube metal temperature profiling.
Generators
Stator winding RTDs (6 per phase, 18 total), bearing RTDs, seal oil temperature, and hydrogen cooler monitoring. Embedded RTD elements per IEEE C57.12 with dual-element redundancy for critical protection points.
Cooling Systems
Condenser inlet/outlet, cooling tower basin, circulating water, and auxiliary cooling water temperature monitoring. Immersion RTD probes with thermowells rated for full system pressure. Remote-mount transmitters for long cable runs.
Balance of Plant
Feedwater heater, deaerator, condensate, fuel gas, and HVAC temperature monitoring. Standard industrial RTD and thermocouple assemblies with connection heads, transmitters, and thermowell assemblies.
Power Generation Sensor Assemblies
These product families are most commonly specified for power plant applications. All are available in standard and custom configurations with plant-wide documentation packages.
Bearing Temperature Sensors
Spring-loaded RTD and thermocouple assemblies for journal, thrust, and guide bearing monitoring on turbines, generators, and auxiliary equipment.
- PT100 dual-element standard
- Spring-loaded for positive contact
- Armor-cabled leads
- IEEE C57.12 compatible
Industrial RTD Assemblies
PT100 RTD sensors with connection heads, integral transmitters, and thermowell assemblies for process temperature measurement throughout the power plant.
- -200°C to +600°C range
- Class A and 1/3 DIN accuracy
- 304/316 SS and Inconel sheaths
- 4-20mA transmitter option
Type K Thermocouples
MIMS Type K thermocouple assemblies for gas turbine, HRSG, and boiler high-temperature applications with connection heads or lead wire terminations.
- Range to +1100°C
- MIMS construction
- Inconel 600 sheaths standard
- Multi-point configurations
Power Generation Sensor Specifications
| Parameter | RTD Sensors | Thermocouples |
|---|---|---|
| Temperature Range | -200°C to +600°C | -200°C to +1200°C |
| Accuracy | Class A / 1/3 DIN per IEC 60751 | Special limits per ASTM E230 |
| Sheath Materials | 304 SS, 316 SS, Inconel 600 | Inconel 600, 310 SS, ceramic |
| Vibration Rating | Per IEEE 841 / IEC 60034 | Per IEEE 841 / IEC 60034 |
| Element Configuration | Single or dual element, 3/4-wire | Single or dual junction |
| Connection Types | Connection head, lead wire, M12 | Connection head, lead wire |
| Output Options | 3/4-wire RTD, 4-20mA, HART | mV, 4-20mA with transmitter |
| Documentation | COC, NIST cal, MTRs | COC, NIST cal, MTRs |
Generator Winding RTDs
For generator stator winding temperature monitoring, Thermometrics supplies embedded RTD elements per IEEE C57.12 standards. Standard configurations include six RTDs per phase (18 total) with dual-element redundancy on critical slots. Contact our engineering team to discuss your specific generator OEM requirements and retrofit specifications.
Your Power Generation Sensor Partner
Designed for Continuous Operation
Power plants run 24/7. Our sensors are engineered for the long haul — designed to deliver consistent, reliable performance through thousands of operating hours between turnarounds.
- ISO 9001:2015 certified quality management system
- High-vibration rated for rotating machinery
- Spring-loaded elements for positive thermal contact
- Armor-cabled leads resist mechanical damage
- Dual-element RTDs for redundant protection
- NIST-traceable calibration with uncertainty data
- Plant-wide standardization packages
- Volume pricing for large quantity orders
Outage-Ready Documentation & Delivery
We understand that planned outages have tight schedules. Thermometrics maintains stock of common power generation sensor configurations for rapid delivery:
- Certificate of Conformance (COC)
- NIST-traceable calibration certificate
- Material Test Reports (MTRs)
- Expedited delivery for outage support
- On-site technical support available
- Spare parts kits for critical sensors
- Replacement sensor matching for retrofit
- Long-term supply agreements
Ready to Spec Your
Power Plant Sensors?
Whether you need bearing RTDs for a generator rewind, thermocouples for an HRSG upgrade, or a complete sensor package for a new build, our team will provide a detailed quotation within one business day.