GE 151X1235BC01SA01 10 Industrial Ethernet Switches

GE  151X1235BC01SA01  10 Industrial Ethernet Switches

2.3.3 Redundant Control and Simplex Bridge

The EX2100e redundant control, simplex bridge option is available for economical

redundancy. This option uses redundant controls (M1. M2. and C) with a single full-wave

SCRbridge. This system provides twice the mean time between forced outage (MTBFO)

afforded by a simplex control with simplex bridge. Bi-directional bumpless transfer

between active and backup controls is standard

2.4 Control Cabinet

An optional NEMA 12/IP54

rated control cabinet is also

available. Refer to the section,

Specifications and Standards.

The EX2100e Thyristor system is supplied in a NEMA

1/IP20 freestanding, indoor

metal cabinet for floor-mounting installation. The lineup consists of several cabinets

bolted together with cable entry through the top or bottom. Each cabinet consists of a

rigid, self-supporting, enclosed panel with a full-length door to provide easy access to the

equipment. The standard cabinet color is ANSI

™-70 (light gray) on both exterior and

interior surfaces, but other colors are available. Each door is equipped with a suitable

handle, three-point latch, and provisions for locking. The power bridge doors do not have

handles, but are bolted closed to support code requirements. The equipment operates in an

ambient temperature range of 0 to 40°C (32 to 104 °F). Depending upon the application, a

current derating factor may apply at 50°C (122 °F).

The control cabinet may also be supplied detached from the power converter lineup to

provide greater flexibility and safety in locating the equipment and to support Digital

Front-end (DFE) applications of the EX2100e controls to other power converters

ControlSoftware

The EX2100e control software supports high performance and helps the customer and

field engineers understand, install, commission, tune, and maintain the excitation control

system. The exciter software is configured and loaded from the ToolboxSTapplication

and resides in the controllers. The software is represented on the ToolboxST Component

Editor screen by control blocks that are linked together to display the signal flow.

The output of the software transducer system includes the following:

• Generator voltage

• Generator active current (average in phase with watts)

• Generator reactive current (average in phase with reactive power, VARs)

• Generator frequency (current)

• Slip(signal representing the change in the rotor speed)

The transducer system uses the output to calculate the following:

• Generator power and VARs

• Magnitude of generator flux (V/Hz)

• Phaseangle and power factor