GE Grid Solutions
D20/D200 Technical Overview
GE Information
PRPI-019-3.00-10
5
D20EME (Ethernet/Memory Expansion)
The D20EME is a VME-based module that combines Ethernet support and global memory
expansion.
Figure 2 D20EME (Ethernet/Memory Expansion)
The D20EME allows VME-based D20 and D200 systems to be connected directly to any 10 MB
Ethernet-based network. Available configurations of the D20EME module include:
•
Ethernet only
•
Memory only
•
Ethernet and Memory
For more information, see section 2.3,
Ethernet/Memory Expansion (EME) Kit.
New D20/D200 I/O Peripherals
Several new I/O peripherals have been added to the D20/D200 product family.
D20AC, AC Analog Input Peripheral
The D20AC, AC analog input peripheral provides AC analog computing and monitoring. It has
the following features:
•
Up to 132 analog values and 18 accumulator values
•
Direct AC analog inputs from current and voltage transformers for up to three 3-phase
circuits, eliminating the need for transducers and/or metering IEDs
•
Integrated key substation functions such as metering, analog processing and power quality
measurement
•
3-element and 1-element (balanced system) metering
•
Meter calculations include kW, kVArs, kVA, power factor, frequency, kWh, kVARh, kVAh
and symmetrical components.
•
Power quality data: %THD (total harmonic distortion), 21
st
harmonic
For more information, see section 2.4.11 ,
