Transformer Solutions - Temperature Nortech Sentinel (conditioner)

Product catalog summary

Overview: The Nortech Sentinel is a fiber optic direct winding temperature monitoring system designed for real-time temperature monitoring of transformer windings. It supports 1 to 6 channels and can measure temperatures up to 225ºC with an accuracy of ±1°C. The system includes user-selectable analog outputs, relays, and communication ports for integration with various systems.

Key Features:

Temperature monitoring for power transformers, load tap changers, high voltage testing, generators, transmission lines, and switchgears.
Supports up to six channels with analog outputs (0–10 V, 4–20 mA).
Includes six form-C relays and RS-232 & RS-485 ports for communication.
Built-in non-volatile memory and Nortech Commander Software for data logging and analysis.
Network capabilities and compatibility with PLC and SCADA systems.
Compact design with optional 19-inch rack mount or NEMA 4 enclosure.
EMC compliant with a 4-year warranty.

Applications: The system is used worldwide for accurate and repeatable temperature measurements in transformers, providing benefits such as design verification, safe loading, and prevention of equipment failure.

Benefits:

Real-time knowledge of hot spot temperatures.
Assists in transformer design and rating verification.
Maximizes loading and prevents premature failure.

Specifications:

Temperature range: −40°C to 225°C.
Resolution: 0.1°C Analog, 1°C Digital.
Sampling rate: 0.1 Hz.
Power supply: 15 V DC, 85-264 VAC.
Operating temperature: −20°C to 60°C.
Dimensions: 305 × 203 × 81 mm, Weight: 2.5 kg.

Complete Solution Includes: Nortech Sentinel, TPT-32 temperature sensors, NOR-EST EasyThroughs, fiber optic extensions, and other optional accessories.

Catalog excerpts

Transformer Solutions - Temperature Nortech Sentinel (conditioner)-1

1 to 6 channels Up to 225C Accuracy ڱ1C User selectable analog outputs (0Ж10 V, 420 mA) Six form-C relays for one system fault relay RS-232 & RS-485 ports Built in non volatile memory > Nortech Commander Software Modem capabilities Network capabilities PLC and SCADA compatible > Large, easy to read LED display Internal real time clock Compact, robust signal conditioner with optional 19-inch rack mount or NEMA 4 enclosure > Power transformer temperature monitoring Core Windings Bushings Load Tap Changer temperature monitoring Contacts Oil High voltage testing Generators Transmission lines High voltage cables Switchgears >

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Transformer Solutions - Temperature Nortech Sentinel (conditioner)-2

Number of channels 1 to 6 Reading temperature range −40C to 225аC Resolution 0.1C Analog, 1аC Digital Conditionner accuracy 1ѰC Sampling rate 0.1 Hz Display Large 1.56 cm (0.614 in) LED display Relays 6 form C (SPDT) 3A, 24 VAC with user-confi gurable set points 1 form C (SPDT) 3A, 24 VAC. Fail-Safe system fault relay Serial ports 1 RS-232, 1 ח RS-485 Communication protocol Proprietary protocol, Modem capabilities Analog outputs 1 to 6 user fi eld-selectable 420 mA or 0֖10 V Power supply 15 V DC, 85-264 VAC, frequency 4565 Hz Power requirement 15 V DC, 2 A Light source Life expectancy >25 years...

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