Asan important power transmission component, slip rings are widely used invarious mechanical devices. In the marine development equipment industry, sliprings play an indispensable role. JINPAT, a professional slip ringmanufacturer, provides a wide range of conductive slip rings for marineequipment.

Inengineering vessels, such as small-tonnage telescopic arm cranes andultra-heavy lifting cranes with steel cable drum hoisting and retractingsystems, conductive slip rings are required. To meet different applicationenvironments, JINPAT has developed conductive slip rings for marine cranes, allof which adopt an open-frame structure for the high-current series. Theseproducts operate at high voltages and transmit large amounts of power. Toensure reliability, JINPAT engineers integrate heating and cooling devices orboth inside the products. Additionally, for conductive slip rings used onoffshore oil drilling platforms, JINPAT incorporates explosion-proof design toensure safe and stable operation.

TheLPA000-09800-01PE-3020-04L high-current slip ring developed by JINPAT is ahigh-current gas-liquid dual-module conductive slip ring designed forprofessional offshore crane vessels. The high-current module integrates 9channels of 800A and 1 ground channel, with a voltage of 440VAC, and theremaining 30 channels are 20A with a voltage of 230VAC. In offshore equipment,the most common voltage and current ranges for conductive slip rings aresingle-channel currents below 1000A and voltages between 380VAC to 600VAC.However, for certain special-purpose offshore equipment, the voltage may beeven higher. For example, some deep-sea geophysical research vessels often useconductive slip rings with working voltages above 4000VAC.

Underthe same power transmission capacity, higher voltage means lower current, andhigher voltage can transmit electricity over greater distances. Therefore, insome deep-sea exploration research vessels, conductive slip rings with workingvoltages above 4000VAC are commonly used. These marine conductive slip ringsgenerally fall into two types. Traditional carbon brush open-frame conductiveslip rings are larger in size, with representative products such asLPA000-0250-FO04. The other type of product uses a laminated structure, insteadof the open-frame structure found in regular conductive slip rings. This typeuses special plastics that can withstand ultra-high voltages as insulationmaterial, ensuring that the conductive slip ring operates normally undervoltages of 4000VAC or higher. A representative model of these slip rings isLPA000-2650-06S.