The cost of active power filters offered by Sinotech Group is influenced by multiple factors. Firstly, the capacity and power rating of the active power filter play a significant role. Higher - capacity filters designed to handle larger electrical loads and more complex harmonic conditions generally come with a higher price tag. For example, filters intended for high - voltage transmission and transformation systems, which require robust construction and advanced technology to manage substantial power flows, are more expensive compared to those for smaller - scale, low - voltage distribution applications. The technological complexity of the active power filter also impacts the cost. Filters equipped with state - of - the - art digital signal processing (DSP) systems for precise harmonic detection and advanced power electronics components like insulated - gate bipolar transistors (IGBTs) for efficient compensation tend to be costlier. Additionally, features such as remote monitoring capabilities, modular designs that allow for easy expansion and maintenance, and built - in protection mechanisms add to the overall cost. Sinotech Group, with its partnerships with renowned global manufacturers like ABB, Schneider, and TBEA, is able to source high - quality components, but this also contributes to the cost structure. However, the group's expertise in integrated marketing and supply capabilities, along with its scale of operations, enables it to offer competitive pricing. Sinotech also provides value - added services such as feasibility studies, engineering design, and after - sales support, which are factored into the overall cost consideration. While the initial investment in active power filters can be substantial, the long - term benefits in terms of improved power quality, reduced energy losses, and extended equipment lifespan often justify the cost for customers in various industries, including manufacturing, energy, and commercial sectors.