SmartSpacer® Thermal Management System
WEIDMANN CERTIFIED SmartSpacer®
WEIDMANN Certified SmartSpacer® represents the synergy between the most advanced and proven technology for direct-reading winding temperature measurement and WEIDMANN know-how in the transformer insulation area.
WEIDMANN SmartSpacer® assemblies utilize fiber optic embedded sensors capable of communicating the status or change in thermal properties that can indicate loss-of-life criteria and probability of failure of power transformers.
All SmartSpacer® products are certified as individual components that are integral to the liquid-immersed EHV and UHV insulation systems found in medium and large power transformers on the electric power grid.
Design: The detailed design of the insulation component and embedded sensor are compatible with normal and emergency electrical stress limits typically found in EHV and UHV liquid-immersed power transformer winding designs, as specified by the transformer manufacturer and operator.
Dielectric Analysis: The component, sensor, and connection system have been extensively modeled and analyzed using Finite Element (FEA) numerical analysis techniques to ensure that the Smart Spacer® is compatible with electric field stresses in the winding and support insulation system designs.
Functional Testing: Insulation components and embedded sensors are tested in the WEIDMANN or equivalent high-voltage laboratory to demonstrate the output metrics and applicable tolerances required for the sensor, and that both are suitable for use in the transformer internal environment, in both alternating voltage and impulse conditions, applicable to the BIL voltage class as specified by the power transformer operator. (See chart for applicable tests.)
Manufacturing Processes: All components meet strict manufacturing process controls in compliance with drawings and specifications that preclude the possibility of electric field stress concentration or negative impact on the transformer dielectric system or performance.
Quality: Strict conformance to written quality assurance system standards are met for components and matching sensors throughout the manufacturing, assembly, packaging, and shipping stages. The WEIDMANN Quality Management System is certified to the ISO 9001 Standard.
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WEIDMANN Power Transformer
Technology Training Course
May 23-25, 2017
WEIDMANN Annual Technical
October 2-5, 2017