Core Viewpoint - Taiyong Changzheng (002927) announced on November 17 that static transfer switches (STS) and automatic transfer switches (ATS) are both power conversion devices, with the main difference being their switching speed and application scenarios [1] Group 1 - ATS utilizes a mechanical structure, while STS employs semiconductor components, allowing for extremely fast switching [1] - STS ensures true uninterrupted power supply, maintaining continuous and stable operation [1]

Core Insights - On November 17, Taiyong Changzheng executed a block trade of 1.186 million shares, amounting to 20.3992 million yuan, which represented 4.23% of the total trading volume for the day. The transaction price was 17.20 yuan, reflecting a discount of 15.44% compared to the market closing price of 20.34 yuan [1]. Summary by Category Trading Details - The block trade involved a total of 1.186 million shares at a price of 17.20 yuan per share, resulting in a total transaction value of 20.3992 million yuan [1]. - The trade accounted for 4.23% of the total trading volume on that day [1]. Price Comparison - The transaction price of 17.20 yuan was at a discount of 15.44% from the market closing price of 20.34 yuan [1].

Core Viewpoint - Taiyong Changzheng's Static Transfer Switch (STS) leverages power electronics technology for rapid switching between two independent power sources, achieving this in milliseconds or even microseconds, emphasizing its core value of speed and high reliability [1] Group 1: Product Features - The STS is designed for applications requiring high continuity of power supply [1] - Key sectors for STS application include communication data centers, rail transit, comprehensive medical facilities, and process industries [1]

每经AI快讯，泰永长征（SZ 002927，收盘价：18.49元）发布公告称，2025年11月13日、11月14日，泰 永长征接受国信证券等投资者调研，公司副总经理、董事会秘书、财务负责人韩海凤等人参与接待，并 回答了投资者提出的问题。 每经头条（nbdtoutiao）——展望"十五五" | 专访尹艳林：让有钱且愿消费的人顺利消费；个税起征点可 提高，最高边际税率可下调，让有关群体少缴税、多收入 （记者 王瀚黎） 2025年1至6月份，泰永长征的营业收入构成为：工业占比100.0%。 ...

Group 1: Solid State Circuit Breakers (SSCB) - SSCBs are not strictly necessary components in HVDC Panama power systems but are becoming key technology choices due to their high speed, reliability, and long lifespan [2] - SSCBs can achieve microsecond-level interruption speeds, effectively matching the rapid rise of fault currents in DC systems, thus preventing fault propagation [2] - The high operational cycle capability of SSCBs, up to one million cycles, reduces long-term maintenance costs and enhances the reliability of power supply from input to load [2] Group 2: Static Transfer Switches (STS) - STS devices are based on power electronics technology, enabling extremely fast switching (usually in milliseconds or microseconds) between two independent power sources [3] - The core value of STS lies in "rapid switching" and "high reliability," making them suitable for critical loads that cannot tolerate power interruptions, such as communications data, rail transportation, and healthcare [3] Group 3: Financial Performance and Market Conditions - The company's gross profit margin has shown fluctuations due to rising raw material prices, intensified industry competition, and changes in market customer and product structures [3] - Despite these challenges, the company's gross profit margin remains at the industry average, and it is actively pursuing cost reduction and efficiency improvement through technological innovation and process optimization [3] Group 4: Product Specifications and Comparisons - The company utilizes both silicon-based and silicon carbide devices for SSCBs, depending on the current specifications of the products [3] - The core competitiveness of SSCBs lies in product design and algorithms rather than just the materials used [3] - SSCBs differ fundamentally from solid-state relays in their core functions and design goals, with SSCBs focusing on real-time monitoring and fault diagnosis capabilities [3]

（文章来源：证券日报） 证券日报网讯泰永长征11月13日在互动平台回答投资者提问时表示，公司的固态变压器目前尚处于应用 方案论证与市场调研阶段。 ...

证券日报网讯泰永长征（002927）11月13日在互动平台回答投资者提问时表示，截至2025年11月10日， 公司股东总户数为30034户。 ...

泰永长征今日下跌6.52%，全天换手率16.66%，成交额7.09亿元，振幅5.58%。龙虎榜数据显示，机构净 卖出1721.50万元，营业部席位合计净卖出1981.36万元。 深交所公开信息显示，当日该股因日跌幅偏离值达-8.05%上榜，机构专用席位净卖出1721.50万元。 证券时报·数据宝统计显示，上榜的前五大买卖营业部合计成交1.73亿元，其中，买入成交额为6797.02 万元，卖出成交额为1.05亿元，合计净卖出3702.86万元。 具体来看，今日上榜的营业部中，共有5家机构专用席位现身，即买一、买二、买三、买四、卖一、卖 二、卖三，合计买入金额5975.82万元，卖出金额7697.32万元，合计净卖出1721.50万元。 资金流向方面，今日该股主力资金净流出3940.51万元，其中，特大单净流出3583.38万元，大单资金净 流出357.13万元。近5日主力资金净流入2.54亿元。（数据宝） 泰永长征11月13日交易公开信息 | 买/卖 | 会员营业部名称 | 买入金额（万元） | 卖出金额（万元） | | --- | --- | --- | --- | | 买一 | 机构专用 | 2481.76 ...

（文章来源：每日经济新闻） 每经AI快讯，有投资者在投资者互动平台提问：公司在互动易说公司在固态断路器领域建立了先发优 势，请问公司的固态变压器有没有核心竞争力？ 泰永长征（002927.SZ）11月13日在投资者互动平台表示，公司的固态变压器目前尚处于应用方案论证 与市场调研阶段。 ...

Core Insights - The company, Taiyong Changzheng, announced on November 12 that its solid-state circuit breakers are primarily being applied overseas through system integrators, indicating a strategy of indirect product and technology output [2] Group 1 - The company is focusing on overseas applications for its solid-state circuit breakers [2] - System integrators are the main channel for the company's international market penetration [2] - The approach reflects a strategy of indirect output of products and technology [2]