AGBB-01C工控备件
Life and productivity
The compressor increases the pressure of natural gas and increases the flow from the seabed to the coast along the natural gas pipeline. Submarine High Voltage (HV) transformers allow pumps and compressors to be located further away from existing power generation and supply points. The motors located on the production facilities are controlled from the top to drive these pumps and compressors. The long high-voltage cable supplies power from the upper drive unit to the submarine machinery far away from the upper unit. Then a step-down submarine transformer is installed on the nearby seabed to adapt the high voltage supplied to the working voltage of the machine. The higher transmission voltage reduces the load current, thereby reducing the size and weight of the cable and the voltage drop in the cable. The dedicated submarine distribution network can be constructed with constant voltage and frequency (50/60/16.7 Hz), main submarine transformer and low-voltage side submarine distribution network. Recently, ABB successfully carried out underwater test on a driving device, which includes an integrated submarine transformer; This shows that power transformers up to 100 MVA can be manufactured and operated. ABB's submarine transformers are designed to operate at large depths and extreme atmospheric pressures. The unit is a liquid filled 02 03 Special Report | Transformer 53 and is pressure compensated to keep the internal pressure close to the external water pressure. ABB uses high-quality insulating oil with low expansion coefficient and high compatibility with other components in the transformer. Since the transformer is installed in a solid anti-corrosion oil tank, it will not expand even under high temperature, so the oil will degas before installation. The oil tank is equipped with a patented pressure compensation system to ensure safe operation. Once installed on the seabed, the scope of repair is limited.
ABB has invested resources
To ensure that its transformer is maintenance free and that all components are of the highest quality. Strict testing enables these transformers to enjoy a long maintenance free operating life. ABB's enclosure high-voltage mobile transformer is used for planning. Today, power companies are required to develop detailed emergency plans to effectively manage the unavailability of part of the power grid in case of power transformer failure. If a critical substation with a rated power of about 500 MVA fails, the revenue loss may be as high as $300000 per day before considering the financial loss caused by reputation damage. To address these challenges, there are two main strategies: replace the faulty unit with a local backup unit in the same substation (i.e., the traditional N+1 backup method), or use an adaptive transformer with a compact, rapidly deployable multi voltage solution. The latter approach dominates today: a single design has excellent flexibility, thereby reducing investment costs. The use of high-voltage mobile transformer → 4 can significantly shorten the reaction time - that is, a compact single-phase device can be transported and put into operation in a few days to meet special needs. It takes weeks or even months to mobilize a large standby standard three-phase transformer. Ten years ago, ABB manufactured the world's first high-voltage mobile transformer using rugged enclosure technology, providing a flexible and fast recovery solution for utilities. Due to the research on materials and winding configuration, the solution has been improved recently: it is more compact, with higher rated power and higher voltage ratio; Multivalent transformers can be easily and quickly transported to any required substation to optimize grid operation.
寿命和生产率
压缩机提高了天然气的压力，并增加了沿天然气管道从海床到海岸的流量。海底高压（HV）变压器允许将泵和压缩机放置在离现有发电和供电点更远的地方。位于生产设施上的电动机由上部控制，驱动这些泵和压缩机。长高压电缆从上部驱动装置向远离上部装置的海底机械供电。然后在附近的海床上安装降压式海底变压器，以使供应的高压适应机器的工作电压。较高的传输电压降低了负载电流，从而降低了电缆的尺寸和重量以及电缆中的电压降。专用海底配电网可采用恒定电压和频率（50/60/16.7 Hz）构建，主海底变压器和低压侧的海底配电网。最近，ABB成功地对一个驱动装置进行了水下测试，该驱动装置包括一个集成的海底变压器；这表明可以制造和操作高达100MVA的电力变压器。ABB的海底变压器设计用于在大深度和极端大气压力下运行。该装置是液体填充的02 03特别报告|变压器53，并进行压力补偿，以保持内部压力接近外部水的压力。ABB使用高质量绝缘油，膨胀系数低，与变压器中的其他部件兼容性高。由于变压器安装在一个坚固的防腐蚀油箱中，即使在高温下也不会膨胀，因此在安装前油会脱气，油箱配有专利的压力补偿系统，从而确保安全运行。一旦安装在海床上，维修范围有限。
ABB已投入资源
以确保其变压器免维护，所有部件均为最高质量。严格的测试使这些变压器能够享受较长的免维护运行寿命。ABB的外壳高压移动变压器用于规划如今，电力公司被要求制定详细的应急计划，以便在电力变压器故障时有效地管理部分电网的不可用性。如果在一个额定功率约为500 MVA的关键变电站发生故障，在考虑声誉受损造成的财务损失之前，收入损失可能高达每天30万美元。为应对这些挑战，存在两种主要策略：用同一变电站内的本地备用单元替换故障单元（即传统的N+1备用方法），或使用紧凑、可快速部署的多电压解决方案的适应性变压器。后一种方法在当今占主导地位：单一设计具有出色的灵活性，从而降低投资成本。高压移动变压器的使用→4，可以显著缩短反应时间——即，一个紧凑的单相装置可以在几天内运输并投入变压器，以满足特殊需要。调动一台大型备用标准三相变压器需要几周甚至几个月的时间。十年前，ABB利用坚固的外壳技术制造了世界上第一台高压移动变压器，为公用事业提供了灵活、快速的恢复解决方案。由于对材料和绕组配置的研究，该解决方案最近得到了改进：它更紧凑，具有更高的额定功率和更高的电压比；多价变压器可以很容易地快速运输到任何需要的变电站，从而优化电网运行。
