Generator Temperature Sensors
Customized Generator Probes
Summary
Pyrovia’s temperature sensors support monitoring across hydro generator applications including bearings, stator core structures, cooling systems, and ambient sensing. Designed for rehabilitation and rewind programs, these sensors address oil‑sealing integrity, electrical isolation, installation constraints, and durability requirements found in hydro environments.
Key Benefits
- Configurable designs for bearings, stator cores, cooling systems, and general generator structures
- Oil‑tight sealing options to help prevent oil migration toward junction boxes and control equipment
- Electrical isolation features to help reduce unwanted current paths and stabilize signal performance
- Multiple mounting styles to support retrofit, replacement, and field‑installation needs
- Durable constructions suited to vibration, thermal cycling, and hydro generator service conditions
Sensor Models
Below is the complete range of Pyrovia generator temperature sensors.
1. Bearing RTDs (Oil‑Tight Designs)
RTD1 — Oil‑Tight RTD: Oil‑tight RTD for generator bearing applications. Available in simplex or duplex configurations with multiple mounting and cable options.
RTD3 — Split‑Assembly Oil‑Tight RTD: Oil‑tight RTD with a split‑assembly design allowing installation from inside the machine outward. Supports retrofit work while maintaining sealing integrity.
2. Electrically Isolated RTDs
RTD5 — Lead‑Wire RTD: Simplex or duplex RTD where an oil‑tight transition is not required.
RTD7 — Electrically Isolated Sensing‑Tip RTD: Lead‑wire RTD with an electrically isolated sensing tip to help prevent unwanted current paths.
RTD8 — Electrically Isolated Armor RTD: RTD with armored cable for mechanical protection. Armor is electrically isolated from the sheath.
RTD9 — Composite‑Sheath RTD: Composite‑sheath RTD with electrically isolated sensing tip. Available with fast‑response copper tip and fixed or spring‑loaded mounting.
3. Stator Core Monitoring Sensors
Stator Core RTD: Composite‑body RTD for stator core temperature monitoring with electrically isolated construction and configurable lead exit.
Stator Core Back RTD: Surface‑measurement RTD with electrically isolated sensing plate and features that improve bonding and installation consistency.
4. Standard RTD Sensors (Models 350 / 360)
General‑purpose RTDs for hydro generator applications, available in multiple mounting styles. Options include simplex or duplex elements, fixed or spring‑loaded mounting, optional O‑ring‑sealed fittings, and NEMA 4X enclosure variants.
5. Ambient Air RTDs
RTD6 — Ambient Air RTD: Designed for ambient air sensing in hydro generator environments. Options include pipe or wall‑mount brackets, stainless steel construction, radiation shielding, and simplex or duplex elements.
Typical Applications
- Bearing temperature monitoring
- Stator core temperature monitoring
- Cooling system sensing
- Ambient air temperature measurement
- Rehabilitation and rewind projects
- Replacement of legacy sensor designs
General Specifications
- Elements: Simplex or duplex
- Terminations: Lead wire, terminal head, sealed connectors
- Mounting: Fixed, spring‑loaded, or compression adapter options
- Isolation features: Electrically isolated tip or sheath options
- Sealing: Oil‑tight designs available for bearing applications
- Materials: Stainless steel, composite, or mixed construction depending on model
Why Pyrovia for Generator Sensors
Pyrovia supports hydro generator refurbishment and rewind projects with a complete temperature sensor portfolio—backed by technical drawings, configuration support, and engineering collaboration to simplify specification, integration, and installation.
