Direct Input And Output Communications - GE D90 Plus Instruction Manual
Line distance protection system
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Also See for D90 Plus:
- Instruction manual (694 pages) ,
- Communications manual (222 pages) ,
- Instruction manual (688 pages)
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CHAPTER 3: INSTALLATION
Direct input and output communications
PLUS
D90
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
Pi
Contact input/output module
n
Type A
Type B
6B Contact input
Contact input
2 –
2 –
7A Contact input
Contact input
3 +
3 +
7B Contact input
Contact input
3 –
3 –
8A Contact input
Contact input
4 +
4 +
8B Contact input
Contact input
4 –
4 –
9A Contact input
Contact input
5 +
5 +
9B Contact input
Contact input
5 –
5 –
10
Contact input
Contact input
A
6 +
6 +
10
Contact input
Contact input
B
6 –
6 –
11
Contact input
Contact input
A
7 +
7 +
11
Contact input
Contact input
B
7 –
7 –
12
Contact input
Contact input
A
8 +
8 +
12
Contact input
Contact input
B
8 –
8 –
The direct inputs and outputs feature makes use of the inter-relay communications
modules. The direct inputs and outputs feature uses the communications channels
provided by these modules to exchange digital state information between devices. This
feature is available on all UR
The communications channels are normally connected in a ring configuration as shown
below. The transmitter of one module is connected to the receiver of the next module. The
transmitter of this second module is then connected to the receiver of the next module in
the ring. This is continued to form a communications ring.
The interconnection for dual-channel communications modules is shown below. Two
channel modules allow for a redundant ring configuration. That is, two rings can be
created to provide an additional independent data path. The required connections are:
URPlus1-Tx1 to URPlus2-Rx1, URPlus2-Tx1 to URPlus3-Rx1, URPlus3-Tx1 to URPlus4-Rx1,
and URPlus4-Tx1 to URPlus1-Rx1 for the first ring; and URPlus1-Tx2 to URPlus4-Rx2,
URPlus4-Tx2 to URPlus3-Rx2, URPlus3-Tx2 to URPlus2-Rx2, and URPlus2-Tx2 to URPlus1-
Rx2 for the second ring.
Type C
Type D
Contact input
Form-A output
2 –
6 –
Contact input
Form-A output
3 +
7 +
Contact input
Form-A output
3 –
7 –
Contact input
Form-A output
4 +
8 +
Contact input
Form-A output
4 –
8 –
Contact input
Contact input
5 +
1 +
Contact input
Contact input
5 –
1 –
Contact input
Contact input
6 +
2 +
Contact input
Contact input
6 –
2 –
Contact input
Contact input
7 +
3 +
Contact input
Contact input
7 –
3 –
Contact input
Contact input
8 +
4 +
Contact input
Contact input
8 –
4 –
Plus
-series devices.
ELECTRICAL INSTALLATION
Type E
Type F
Contact input
Form-A output
12 +
6 –
Contact input
Form-A output
13 +
7 +
Contact input
Form-A output
14 +
7 –
Contact input
Form-A output
15 +
8 +
Contact input
Form-A output
16 +
8 –
Contact input
Form-A output
17 +
9 +
Contact input
Form-A output
18 +
9 –
Contact input
Form-A output
19 +
10 +
Contact input
Form-A output
20 +
10 –
Contact input
Form-A output
21 +
11 +
Contact input
Form-A output
22+
11 –
Contact input
Form-A output
23 +
12 +
Common –
Form-A output
12 –
61
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