GE DS200PTCTG1A Current Transformer Board

GE DS200PTCTG1A  Current Transformer Board

Part Number DS200PTCTG1A Manufacturer General Electric Country of Manufacture As Per GE Manufacturing Policy Series Mark V Function Module Availability In StockDS200PTCTG1A is a Potential Transformer Current Transformer I/O board developed by Ge under the EX2000 excitation system. The primary function of the PTCT board is to isolate and scale voltage and current signals from PTs and CTs. It also has auxiliary inputs and outputs for low voltage (10 V dc) or current signals ranging from 4 to 20 mA. Voltage Signals Six high precision transformers with secondary ratings of 1.6 Vrms and primary nominal ratings of 120 Vrms are used on the PTCT board. 

On the PTCT, separate terminal points are provided for each primary connection. The voltage signals are measured using test points TPl through TP12. Current Signals The PTCT board contains three CTs, each with a burden resistor installed across the secondary. For each primary connection, a separate terminal point is provided. The voltage across the burden resistors RlO through RI2 is measured at test points TP13 through TP18. Low Voltage or Current Inputs Depending on the jumper settings on the PTCT, low voltage signal (10 volts) inputs can be converted to 4 to 20 mA signal inputs. 

The FTCT contains manually moveable hardware jumpers denoted by a BJ nomenclature. Current Outputs The 4 - 20 mA signals are sent from the PTCT board to the TCCB board via connector JKK. DS200PTCTG1A Board Replacement Turn off the exciter's power. To remove the PTCT board, disconnect all cables carefully as follows: When working with ribbon cables, place one hand on each side of the cable connector that connects to the board connector. Pull the cable connector gently with both hands. Pull the pull tab carefully on cables with pull tabs. Remove the screws that hold the board together at the top and bottom. Place all configurable items on the replacement (new) board in the same position as those on the board being replaced (old board).

This DS200PTCTG1A printed circuit board product offering from General Electric, as specified in very loosely-available instructional manual materials online, is a Potential Transformer Current Transformer Board originally manufactured specifically for the Mark V Turbine Control System Series. The Mark V Series that this DS200PTCTG1A printed circuit board or PCB for short belongs to, as defined in its full extended series name, has a selection of specific applications in the control and management systems of popular and compatible wind, steam, and gas turbine automated drive assemblies. With this being the case, this DS200PTCTG1A product's greater Mark V Series must still be considered obsolete overall, as it is definable as a General Electric legacy Mark product series whose manufacture was discontinued due to a retailer-introduced functional series obsolescence in one of the many many years past its original General Electric product series rollout. This DS200PTCTG1A device's Mark V Turbine Control System Series, while obsolete as a whole, is still able to attract something of a consistent cult demand on the general automated industrial marketplace, as it exists as one of the lastly-developed GE Mark product series to incorporate the patented Speedtronic control system technology across a range of its different offerings including this DS200PTCTG1A PCB.

Hardware Tips and Specifications

The DS200PTCTG1A Potential Transformer Current Transformer Board uses the abbreviation of PTCT in GE documentation and provides current signals from the PTs and CTS in an EX2000 Excitation Control System. The General Electric Potential Transformer Current Transformer board DS200PTCTG1A features 1 terminal block with terminals for 72 signal wires in each. It also contains 1 50-pin connector. The IDs for the terminals on the terminal block include OUT2, OUT1, COM1, COM2, P15, SO21, and L23. It also contains terminal posts for 6 signal wires. Generally, this DS200PTCTG1A device's voltage suppression and limitation strategy involves its normal Mark V Series assembly's incorporation of a series-standardized selection of voltage-limiting hardware components including various different styles of capacitors, resistors, diodes, rectifiers, and finally specialized integrated circuits. This DS200PTCTG1A printed circuit board is actually not the originally-printed device of its specific Mark V Series functionality; that would actually be the DS200PTCTG1 parent Potential Transformer Current Transformer not making use of this DS200PTCTG1A device's singular A-rated functional product revision. This DS200PTCTG1A PCB's functional product number reveals many other hardware details in a series of consecutive functional naming elements. For example, the DS200PTCTG1A functional product number is started by the dual-functional DS200 series tag delegating this DS200PTCTG1A device's normal Mark V Series assembly and domestic location of original manufacture. Some of the other pertinent hardware information revealed through the DS200PTCTG1A functional product number include this PCB's:

PTCT functional product abbreviation

Normal PCB coating style

Group one Mark V Series product grouping

A-rated primary functional product revision