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LDSYN-101 3BHE005555R0101 is industrial-grade precision synchronization card exclusively designed for ABB UNITROL excitation control system, developed for power generation synchronous paralleling safety control.

The board adopts full anti-electromagnetic interference PCB layout to adapt high EMI environment inside power plant high-voltage cabinet. Dual independent analog input channels separately access generator side and busbar side AC voltage; internal digital logic automatically compares three core sync indexes: voltage difference, frequency slip, phase angle. After condition qualified, passive relay contact closes to send synchronous switching enable command to upper CPU module (such as PCD230A101).

All original components pass ABB strict high-low temperature aging test; standard Eurocard plug-in design supports direct swap replacement without cabinet wiring modification, the most common original spare part for thermal power, hydropower and self-owned captive power plant excitation system routine maintenance.

• Thermal Power Plant: Turbo-generator UNITROL excitation cabinet sync board replacement

• Hydropower Station: Water-wheel generator grid-parallel synchronization control system maintenance

• Captive Power Plant: Steel, chemical, mine self-provided generator excitation spare parts

• Distributed Energy Station: Biomass/gas genset synchronization monitoring retrofit project

• Substation: Busbar section switch synchronization check control modification

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.