Oil temperature detector (Normal/Conventional)

Conventional Heat Detector - ZETA The ZETA conventional heat detector is a safety device designed to detect the rise in oil temperature in various devices and equipment, such as electrical transformers, motors, and hydraulic systems. This type of detector operates on the principle of thermal expansion of materials, where its shape or electrical resistance changes with temperature. Detector components: - Thermal sensor: The main part of the detector, usually consisting of a metal strip or liquid that expands when the temperature rises. - Simple electrical circuit: Converts the change in shape or resistance of the sensor into an electrical signal. - Output for signal: Used to connect the detector to the alarm circuit or control system. Working principle: - Temperature rise: When the oil temperature exceeds the permissible limit, the thermal sensor expands. - Closing the electrical circuit: The expansion of the sensor causes the electrical circuit inside the detector to close. - Activating the alarm: An electrical signal is sent to the alarm circuit, causing the alarm sound to activate or a warning light to turn on. Advantages of the ZETA conventional heat detector: - Simple design: Making it reliable and easy to maintain. - Low cost: Compared to other types of detectors. - Easy installation: Can be easily installed in tight spaces. Disadvantages of the ZETA conventional heat detector: - Slow response: It may take some time to activate the alarm after the temperature rises. - Affected by the surrounding environment: Its performance may be influenced by vibrations and pressure changes. - Not highly accurate: Compared to digital detectors. Uses: The ZETA conventional heat detector is used in many applications, including: - Electrical transformers: To protect transformers from excessive heat caused by high currents or faults. - Motors: To detect rising motor temperature due to overload or insufficient lubrication. - Hydraulic systems: To protect hydraulic systems from damage caused by high oil temperatures. Note: Despite its simplicity, the ZETA conventional heat detector plays an important role in protecting equipment and devices from damage caused by high temperatures. However, the appropriate type of detector should be selected based on the specific application and safety requirements.