GE D60 User Manual

GE Multilin D60 Line Distance Protection System 6-13
6 ACTUAL VALUES 6.3 METERING
6
6.3METERING 6.3.1 METERING CONVENTIONS
a) UR CONVENTION FOR MEASURING POWER AND ENERGY
The following figure illustrates the conventions established for use in UR-series relays.
Figure 6–1: FLOW DIRECTION OF SIGNED VALUES FOR WATTS AND VARS
827239AC.CDR
PER IEEE CONVENTIONS
PARAMETERS AS SEEN
BY THE UR RELAY
Voltage
WATTS = Positive
VARS = Positive
PF = Lag
Current
Voltage
WATTS = Positive
VARS = Negative
PF = Lead
Current
Voltage
WATTS = Negative
VARS = Negative
PF = Lag
Current
Voltage
WATTS = Negative
VARS = Positive
PF = Lead
Current
Generator
Generator
Inductive
Inductive Resistive
Resistive
Generator
Generator
UR RELAY
UR RELAY
UR RELAY
UR RELAY
G
G
M
M
G
G
VCG
IC
VAG
IA
VBG
IB
1
-
VCG
IC
VAG
IA
VBG
IB
2
-
VCG
IC
VAG
IA
VBG
IB
3
-
VCG
IC
VAG
IA
VBG
IB
4
-
+Q
+Q
+Q
+Q
PF=Lead
PF=Lead
PF=Lead
PF=Lead
PF=Lag
PF=Lag
PF=Lag
PF=Lag
PF=Lag
PF=Lag
PF=Lag
PF=Lag
PF=Lead
PF=Lead
PF=Lead
PF=Lead
-Q
-Q
-Q
-Q
-P
-P
-P
-P
+P
+P
+P
+P
IA
IA
IA
IA
S=VI
S=VI
S=VI
S=VI
LOAD
LOAD
Resistive
Resistive
LOAD
LOAD

GE D60 Specifications

General

Frequency	50/60 Hz
Manufacturer	General Electric (GE)
Communication Protocols	DNP3
Mounting	Panel mount
Operating Temperature	-20°C to +60°C