High-voltage Bushing with Digital Voltage & Current Transformer (BIIT Bushing)

We provides state of the art technology for high-voltage bushing with digital voltage & current transformer (BIIT Bushing):

 delivering reliable long-term performance, reduced risk, and lower cost of ownership.

- Non-oil, non-gas, paperless, non-porcelain, explosion-free, 

- Maintenance-free and environmentally friendly

- Solid construction – For tough environments

- A simple and rigorously controlled production process allowing design flexibility with consistent

- Quality and one of the best lead times in the industry.

- Built-in monitoring of core insulation: Tracking the bushing's condition while in operation with LED pre-alarm

The flexible production process to create a built-in large value C2 capacitance (i.e. safe very low voltage across the connection) that acts as a sensor for any leakage current that would be generated by a defective condenser layer. This sensing is connected to an outside LED light that will turn on at a pre-determined leakage current threshold value. The Pre-alarm occurs weeks before such damage could become mission critical for the transformer and require de-energization of the equipment. Concurrently, it is “fool-proof” as the bushing comes operation-ready and does not require any intervention to set up the monitoring before or after installation.

If needed, this same interface can be connected to a control room for continuous monitoring.

Customer Benefits:

• Totally safe, no risk of explosion.
• Totally maintenance-free, low cost of ownership.
• Superior resistance to mechanical and thermal stresses.
• Environmentally friendly – no risk of toxic leakage.
• Sealed and impervious to water and pollution.
• Easy storage simplifies grid management
• Built-in monitoring of core insulation condition with early fault alarm fosters full visibility in asset management and avoids emergency situations.

Smart Monitoring:

As one of the necessary conditions for smart grid development, online monitoring is fundamental to efficient grid management. It can reduce the number and duration of power downtimes for off-line preventive testing, and obtain status of the equipment's insulation in real time.

But it needs to be reliable and adapt to users resources in handling any type of data generated while providing enough time to investigate and fix any detected issue before major damage can occur to the station.

We proposes a unique proprietary built-in environment-proof monitoring with flexible, early fault detection that can be used visually.

The dry type insulation systems is central in allowing the reliable built-in integration of the LV capacitor Cs and the assurance of stable and accurate monitoring.

The dry, solid nature of our insulation systems translates into a very slow rate of defect propagation through the core structure: early detection provides significant time for investigation and repair of the defect.

Two interface options are offered: visual or digital.

LED terminal on Current Transformer

Smart measurement terminal