Honeywell International Inc.

Huaneng Shanghai Shidongkou Second Power Plant

Jie Lv

Lei Zou

Zhi Gang Yang

Liren Zhou

Yan Sun

Haifeng Liang

Ke Zou

Yuqing Sang

Zhengrong Li

Shuang Hao

Guoping Tong

Min Zhang

Dezhi Yang

Chenghao Wang

Chaohong Liu

Enkui Lv

Huagang Xu

Changqiu Wang

Yongquan Tan

Dongxu Liu

Provided in the present invention is a 220 KV transformer movable sleeve for easy maintenance which includes a sleeve assembly and a connecting component. The sleeve assembly includes a sleeve and an end cap, and the access port is provided on the sleeve, the access port is matched with the end cap, and the connecting component includes a rotating part, a moving part and a driving part. The access port is arranged on the sleeve assembly, and the inspection can only be carried out by opening the access port during inspection, without dismantling the entire movable sleeve, and greatly improving the work efficiency. The rubber strip is combined with the metal sleeve. The method reduces the influence of magnetic flux leakage on the metal movable sleeve and prevents it from generating eddy current heating. Through the driving part, the end cap can be automatically opened, saving time and effort.

220KV transformer movable sleeve for easy maintenance

The present invention discloses a 220 KV transformer sleeve. The sleeve includes a sleeve assembly and a connecting assembly. The sleeve assembly includes a sleeve brace, an adjustable part coupled with the sleeve brace. The connecting assembly includes a rotating part and a mobile part. The sleeve is secured on the transformer core body through screws, and the adjustable part can be opened through the connecting assembly. When maintenance is required, there is no need to dismantle the entire sleeve. The work efficiency is greatly improved. This minimizes inductance leakage and prevents eddy currents from occurring.

220KV transformer sleeve

A system includes a serial peripheral interface (SPI) buffer configured at an initial position. A low voltage differential signaling (LVDS) transceiver is configured above the SPI buffer. A capacitor couples the LVDS transceiver with the SPI buffer. The SPI buffer does not interfere with signals from the LVDS transceiver. The LVDS transceiver does not interfere with signals from the SPI buffer. An input/output (I/O) module receives a signal from the LVDS transceiver or the SPI buffer.

Method to improve communication speed in existing control system

A system comprising first and second redundant controller modules, each controller module comprising mode management circuitry configured to identify whether the corresponding controller module operates in a master mode or a slave mode. The mode management circuitry in each controller module is configured to couple to the mode management circuitry in the other controller module. The mode management circuitries in the controller modules are configured to collectively operate so that one of the controller modules is assigned the master mode and the other of the controller modules is assigned the slave mode. At least one of the mode management circuitries in the controller modules is configured to assign the master mode to the corresponding controller module based on a takeover signal when the mode management circuitry in the corresponding controller module is ready for use.

Master/slave management for redundant process controller modules

A system includes a remote terminal unit (RTU) controller module. Each RTU controller module comprises a controller board configured to couple to a carrier board that includes first and second Ethernet ports. Each controller module comprises computer processing circuitry including the first and second MACs and configured to select to transmit a packet to the first Ethernet port through the first MAC and to alternatively select to transmit the packet to the second Ethernet port through the second MAC. Each controller module comprises an Ethernet switch configured to receive the packet from the first media access control (MAC) and transmit the packet to the first Ethernet port. Each controller module comprises a physical Ethernet interface (PHY) configured to receive the packet from the second MAC and transmit the packet to the second Ethernet port. The computer processing circuitry, the Ethernet switch, and the PHY are mounted on the controller board.

Built-in ethernet switch design for RTU redundant system

An apparatus includes a remote terminal unit (RTU) having one or more input/output (I/O) modules and a controller module. Each of the one or more I/O modules includes multiple I/O channels. The controller module includes at least one processing device configured to communicate with at least one industrial field device via the I/O channels of the I/O modules. The controller module includes a first connector, and a first of the one or more I/O modules includes a second connector. The first connector is configured to be physically connected to the second connector, and the first and second connectors are configured to transport data and power directly between the controller module and the first I/O module.

Remote terminal unit (RTU) hardware architecture

An apparatus includes a remote terminal unit (RTU) having a housing, where at least a portion of the housing includes a shell of thermally-conductive material. The RTU also includes at least one circuit board assembly having at least one processing device configured to communicate with one or more industrial control and automation field devices via one or more input/output (I/O) channels. The at least one circuit board assembly is positioned within the shell. The RTU further includes a heat sink configured to remove thermal energy from the at least one processing device. In addition, the RTU includes a thermal pad configured to receive the thermal energy from the heat sink and to provide the thermal energy to the shell.

Remote terminal unit (RTU) supporting elevated operating temperature and reduced power consumption

A system includes a remote terminal unit (RTU) and a portable storage medium (PSM), such as a secure digital (SD) card. The RTU includes processing circuitry. The RTU includes a portable storage interface configured to physically connect to the PSM and electrically couple the PSM to the processing circuitry. The RTU includes on-chip memory. The processing circuitry is configured to determine that the PSM is coupled to the processing circuitry and access a specified folder of the PSM. The processing circuitry is configured to: in response to determining that the PSM stores function code in the specified folder, perform a specified function corresponding to the function code by executing the function code.

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Shanghai, China

Jie Lv