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TRKXL-60W
TR
Product Overview
Reliable grounding of the transformer core is critical. During operation, the alternating magnetic field around the windings couples through parasitic capacitance, causing the core to develop a floating potential. If the core is not grounded, potential differences may arise between metal components due to varying distances, potentially leading to insulation breakdown and spark discharge, which can damage oil and solid insulation. Therefore, the core must be grounded at a single point to eliminate the floating potential.
However, if the core is grounded at two or more points, a closed loop is formed, generating circulating currents. These circulating currents cause localized overheating, leading to transformer oil decomposition, reduced insulation performance, and in severe cases, burning of the core's silicon steel sheets, resulting in major accidents.
Therefore, the core must be reliably grounded at a single point to avoid floating voltage or multi-point grounding overheating faults, ensuring the safety of the transformer and power grid. Monitoring the core grounding current is an effective means of promptly detecting such faults and preventing accidents.
Product Features
* The hinged structure is easy to install on site and convenient to operate. It can be quickly and easily installed or removed without disconnecting the primary cable under test.
* Accurately measures currents at the microampere level with high measurement accuracy and good linearity.
* Multiple shielding, strong anti-interference capability, capable of operating in complex environments.
* Optional shielded cable or aviation plug output.
* Special waterproof and rust-proof metal shell, epoxy resin encapsulation, suitable for long-term outdoor use.
Application
* Transformer core grounding online monitoring.
* High-voltage bushing insulation online monitoring.
* Zinc oxide arrester insulation online monitoring.
* Current and voltage transformer and capacitor online monitoring.
* High-voltage live display.
Product Overview
Reliable grounding of the transformer core is critical. During operation, the alternating magnetic field around the windings couples through parasitic capacitance, causing the core to develop a floating potential. If the core is not grounded, potential differences may arise between metal components due to varying distances, potentially leading to insulation breakdown and spark discharge, which can damage oil and solid insulation. Therefore, the core must be grounded at a single point to eliminate the floating potential.
However, if the core is grounded at two or more points, a closed loop is formed, generating circulating currents. These circulating currents cause localized overheating, leading to transformer oil decomposition, reduced insulation performance, and in severe cases, burning of the core's silicon steel sheets, resulting in major accidents.
Therefore, the core must be reliably grounded at a single point to avoid floating voltage or multi-point grounding overheating faults, ensuring the safety of the transformer and power grid. Monitoring the core grounding current is an effective means of promptly detecting such faults and preventing accidents.
Product Features
* The hinged structure is easy to install on site and convenient to operate. It can be quickly and easily installed or removed without disconnecting the primary cable under test.
* Accurately measures currents at the microampere level with high measurement accuracy and good linearity.
* Multiple shielding, strong anti-interference capability, capable of operating in complex environments.
* Optional shielded cable or aviation plug output.
* Special waterproof and rust-proof metal shell, epoxy resin encapsulation, suitable for long-term outdoor use.
Application
* Transformer core grounding online monitoring.
* High-voltage bushing insulation online monitoring.
* Zinc oxide arrester insulation online monitoring.
* Current and voltage transformer and capacitor online monitoring.
* High-voltage live display.
