What are the challenges faced while measuring tan delta of electrical equipment in a charged substation up to 765 kv? Measuring tan delta of electrical equipment in a charged substation up to 765 kV presents several unique challenges. Here are some of the key ones: Safety: High voltage: Working at such high voltages requires extreme caution and adherence to strict safety protocols to prevent electrical shock or arc flash incidents. This includes using proper personal protective equipment (PPE), maintaining safe clearances, and following grounding procedures. Induced voltages: Even when de-energized, equipment can still have induced voltages due to the proximity to live conductors. This necessitates careful potential measurement and grounding before touching any equipment. Technical challenges: Stray capacitance: The high capacitance of the surrounding environment and equipment can affect the accuracy of the measurements. Careful test setup and lead dressing techniques are crucial to minimize stray capacitance effects. Grounding: Proper grounding is essential for accurate measurements and safety. However, achieving a good ground connection can be difficult in a substation environment due to the complex grounding grid and potential differences between points. Interference: Electromagnetic interference (EMI) from other equipment in the substation can affect the measurements. Shielding and filtering techniques may be necessary to minimize interference. Limited access: Access to certain equipment, especially at higher voltage levels, can be restricted due to safety considerations. This may require specialized tools or techniques to reach the test points. Test equipment limitations: Not all tan delta test instruments are rated for high voltage applications. Choosing the right equipment with appropriate voltage and safety certifications is crucial. Myriad Industrial Solutions LLP, Mumbai, supplies capacitance and tan delta testers suitable for working in harsh induced environments. Contact us discuss about your requirement