Month: May 2025

SPECIFICATIONS

Part No.: IS220PAICH1B

Manufacturer: General Electric

Country of Manufacture: United States(USA)

Product Type: Analog I/O pack

Series: Mark VIe

The IS220PAICH1B is a GE Analog I/O pack from the Mark VIe series. The PAIC pack serves as the electrical interface between one or two I/O Ethernet networks and an analog input terminal board. The pack includes a processor board shared by all Mark VIe distributed I/O packs and an acquisition board dedicated to the analog input function.

IS220PAICH1B Functional Description

The pack can handle up to ten analog inputs, the first eight of which can be configured as 5 V or 10 V inputs or 0-20 mA current loop inputs. The last two inputs can be set to 1 mA or 0-20 mA current inputs.

The load terminal resistors for the current loop inputs are located on the terminal board, and the PAIC senses voltage across these resistors. The PAICH1 also has two 0-20 mA current loop outputs. The PAICH2 includes additional hardware to support 0-200 mA current on the first output.

The pack is powered by a three-pin power input and two RJ45 Ethernet connectors. Output is via a DC-37 pin connector that is directly connected to the associated terminal board connector. LED indicator lights provide visual diagnostics.

About the DS200TCEAG1B

This DS200TCEAG1B printed circuit board or PCB for short was originally developed to exist as an Emergency Overspeed Board within the greater Mark V Turbine Control System Series. The Mark V Series is one of the more recent additions to the slew of Mark-named product series offered with General Electric Speedtronic technology, and specifically applies to wind, steam, or gas turbine control systems and automated drive assemblies. This DS200TCEAG1B printed circuit board is not the original Emergency Overspeed Board that was manufactured by General Electric for placement in their Mark V Turbine Control System Series; that would be the similarly-named DS200TCEAG1 printed circuit board notably missing this DS200TCEAG1B product offering’s singular B-rated functional product revision.

Hardware Tips and Specifications

This DS200TCEAG1B Emergency Overspeed Board has its own particular set of hardware component inclusions and specifications, as revealed in original Mark V Series instructional manual documentation. The General Electric Emergency Overspeed Board model DS200TCEAG1B features one microprocessor and multiple programmable read only memory (PROM) modules. It also contains 3 fuses, 30 jumpers, and a pair of bayonet connectors. The DS200TCEAG1B board monitors the Mark V Series drive for over speed and flame detection trip conditions and shuts down the drive as appropriate. The bayonet connectors in the assembly of this DS200TCEAG1B Emergency Overspeed Board are used to connect the board to other devices and boards in the drive; these male bayonet connectors on the end of the cables require some consideration before you connect them to the female connectors on the board, as detailed in depth in GE instructional manual materials. To remove a bayonet connector, hold the connector with one hand and with the other hand secure the board to keep it from bending or moving. Pull the bayonet connector out of the female connector on the board and put the cable aside until you are ready to connect it to the replacement board.

Several specific connectors and integrated circuits are incorporated into the assembly of this TCEA-abbreviated PCB. This DS200TCEAG1B Mark V Series printed circuit board’s circuits are tasked with various diagnostic functions relating to this DS200TCEAG1B PCB’s greater overspeed processing functionality. Some of these integrated circuits include the TCEA Flame Detection Circuits, the TCEA Turbine Overspeed Circuit, and the TCEA Automatic Synchronizing Circuit. Each of these circuits has been named in terms of their functionality to the greater DS200TCEAG1B printed circuit board and Mark V Series automated drive assembly.

Intuitive transformer protection

The Multiline™ 345 is a member of the Multilin 3 series of protective relay platforms designed for the protection, control and management of power transformers as primary or standby protection.

The Multiline™ 345 provides advanced transformer protection, control and monitoring in an economical withdrawable or non-withdrawable design.

The 345 contains a full range of independent protection and control elements as well as advanced communications, metering, monitoring and diagnostics.

Key Benefits

-Safe, high-speed protection with improved energisation suppression

-Field-proven algorithms and reliable protection against unintentional tripping or inadequate protection

-Integrated transformer thermal monitoring for asset management maintenance optimisation

-Earth current monitoring sensitive earth fault protection for detecting 5% of earth fault windings

-Temperature monitoring via remote RTDs using RMIO modules supporting up to 12 RTDs

Easy to use and flexible with one-step setup, universal CT inputs and assignable CT inputs

-Flexible communications with multiple ports and protocols for seamless integration

-Strong security and hierarchical password control for centralised management

Pull-out design simplifies testing, commissioning and maintenance for increased process uptime

-Application flexibility with programmable logic elements

-Switchgear diagnostics and simple troubleshooting output test modes via trip/close circuit monitoring and LEDs and digits

-Environmental monitoring system for monitoring operating conditions and planning preventive maintenance

-Rugged design that exceeds industry standards with automotive-grade components and advanced test procedures such as accelerated life cycle testing

-Available in pull-out or non-withdraw-out options

-Simplifies migration of legacy MII Series relays to Series 3 platforms

-Intuitive configuration software and user-friendly logic configuration tools

This digital relay shall be capable of providing motor protection and management functions.

Its main protection function shall be thermal modelling, which consists of the following 4 main components:

– Overload curve

– Negative sequence unbalance/single phase offset

– RTD offset (hot/cold motor compensation)

– Motor cooling time constant

Special attention should be paid to the protection of the rotor during stall and acceleration. If the rotor is to be protected during stall and acceleration, the

The stall/acceleration curve must be voltage compensated and must be equipped with a speed switch input.

The stator protection thermal model should combine positive and negative sequence currents and RTD winding feedback inputs.

This allows the model to be dynamic at all times, thus allowing the motor load and temperature to be tracked.

The protection functions should include:

– Stall

– Mechanical blocking

– 12 RTD inputs

– Ground overcurrent

– Short circuit

– Differential protection (using CT inputs from both ends of the motor winding (6))

– Voltage transformer input (to provide over-voltage, under-voltage, reverse-phase, over-frequency and under-frequency functions)

The motor management relay shall be fully equipped for power measurement. The event log shall be capable of storing the last 40 events.

It shall be capable of storing 16 cycles of waveform data for each trip occurrence. The relay shall be equipped with an analogue function which is used to test the relay.

The user interface includes:

– A 40 byte vacuum phosphor screen and keypad for access to actual and set values.

– An RS232 port on the front panel for programming the set values.

– an RS485 port using open protocol (selectable baud rate up to 19.200 bps)

– A separate auxiliary RS485 port for increased security or for the exclusive use of maintenance personnel.

– The interface software should be in Windows® format

The relays are of extractable construction for easy testing, maintenance and replacement of parts.

These instructions are not intended to cover all details or variations in the equipment, nor do they provide whether installation, operation or maintenance requires further information or presents special problems

For the buyer, those not adequately covered shall refer to General Electric Company.

To the extent required, the products described herein comply with applicable ANSI, IEEE, and NEMA standards; however, with respect to local codes and ordinances, as they vary widely.

The 745 Transformer Protection System™ is a high-speed, multiprocessor-based three-phase, two-winding or three-winding transformer management relay.

for the protection and management of primary small, medium and large power transformers.

The 745 combines percentage differential, overcurrent, frequency and overexcitation protection elements as well as individual harmonic and total harmonic distortion (THD) monitoring in one economical package.

The relay offers a variety of adaptive relaying functions:

-Adaptive harmonic suppression, which resolves in inflow

-Adaptive time overcurrent element, which can be based on the harmonic content of the transformer capacity calculated when supplying high load currents

-Multiple set point groups that allow the user to enter and dynamically select from up to four relay settings to address different protection requirements for power system configurations

Dynamic CT ratio mismatch correction for monitoring on-load tap positions and automatically correcting CT ratio mismatches.

FlexLogic™ which allows PLC-style equations based on logic inputs and protections to be assigned to any of the 745’s output elements.

The 745 also includes powerful test and simulation capabilities.

This allows protection designs to be based on captured or computer-generated relay operation test capability waveform data, which can be converted to a digital format and downloaded to the 745.

The 745’s analogue buffer can be used for “playback”. The recorded waveform capture feature also provides waveform data for fault, surge or alarm conditions.

The auto-configuration feature eliminates the need for any special CT connections by eliminating the need for all CTs with Y-connections.