GE M60 UR Series Instruction Manual page 220

5.2 PRODUCT SETUP
DIRECT OUTPUT DEVICE ID:
DIRECT I/O CH1 RING CONFIGURATION:
DIRECT I/O CH2 RING CONFIGURATION:
For UR-series IED 3:
DIRECT OUTPUT DEVICE ID:
DIRECT I/O CH1 RING CONFIGURATION:
DIRECT I/O CH2 RING CONFIGURATION:
In this configuration the following delivery times are expected (at 128 kbps):
IED 1 to IED 2: 0.2 of power system cycle;
IED 1 to IED 3: 0.5 of power system cycle;
IED 2 to IED 3: 0.2 of power system cycle.
In the above scheme, IEDs 1 and 3 do not communicate directly. IED 2 must be configured to forward the messages as
explained in the Inputs and Outputs section. A blocking pilot-aided scheme should be implemented with more security and,
ideally, faster message delivery time. This is accomplished using a dual-ring configuration as shown here.
5
Figure 5–23: DUAL-CHANNEL CLOSED LOOP (DUAL-RING) CONFIGURATION
In the above application, the following settings should be applied. For UR-series IED 1:
DIRECT OUTPUT DEVICE ID:
DIRECT I/O CH1 RING CONFIGURATION:
DIRECT I/O CH2 RING CONFIGURATION:
For UR-series IED 2:
DIRECT OUTPUT DEVICE ID:
DIRECT I/O CH1 RING CONFIGURATION:
DIRECT I/O CH2 RING CONFIGURATION:
For UR-series IED 3:
DIRECT OUTPUT DEVICE ID:
DIRECT I/O CH1 RING CONFIGURATION:
DIRECT I/O CH2 RING CONFIGURATION:
In this configuration the following delivery times are expected (at 128 kbps) if both the rings are healthy:
IED 1 to IED 2: 0.2 of power system cycle;
IED 1 to IED 3: 0.2 of power system cycle;
IED 2 to IED 3: 0.2 of power system cycle.
The two communications configurations could be applied to both permissive and blocking schemes. Speed, reliability and
cost should be taken into account when selecting the required architecture.
5-92
"2"
"Yes"
"Yes"
"3"
"Yes"
"Yes"
TX2 TX1
UR IED 1
RX1 RX2
TX1
UR IED 3
RX2
"1"
"Yes"
"Yes"
"2"
"Yes"
"Yes"
"3"
"Yes"
"Yes"
M60 Motor Protection System
RX1 RX2
UR IED 2
TX2 TX1
RX1
TX2
842715A1.CDR
5 SETTINGS
GE Multilin