Protection Elements - GE D30 Instruction Manual

2 PRODUCT DESCRIPTION
2.4SPECIFICATIONSSPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
The operating times include the activation time of a trip rated form-A output contact unless otherwise indicated.
FlexLogic operands of a given element are 4 ms faster. Take this into account when using FlexLogic to interconnect
with other protection or control elements of the relay, building FlexLogic equations, or interfacing with other IEDs or
NOTE
power system devices via communications or different output contacts. If not specified, the operate times given
here are for a 60 Hz system at nominal system frequency. Operate times for a 50 Hz system are 1.2 times longer.
PHASE DISTANCE
Characteristic: mho (memory polarized or offset) or
quad (memory polarized or non-direc-
tional), selectable individually per zone
Number of zones: 5
Directionality: forward, reverse, or non-directional per
zone
Reach (secondary Ω): 0.02 to 500.00 Ω in steps of 0.01
Reach accuracy:
Zone 1: ±5% including the effect of CVT tran-
sients up to an SIR of 30 and ±7% for
30<SIR< 60 at RCA angle
Zones 2 to 5: ±5% for steady fault conditions
Distance:
Characteristic angle: 30 to 90° in steps of 1
Comparator limit angle: 30 to 90° in steps of 1
Directional supervision:
Characteristic angle: 30 to 90° in steps of 1
Limit angle: 30 to 90° in steps of 1
Right blinder (Quad only):
0.02 to 500 Ω in steps of 0.01
Reach:
Characteristic angle: 60 to 90° in steps of 1
Left Blinder (Quad only):
Reach: 0.02 to 500 Ω in steps of 0.01
Characteristic angle: 60 to 90° in steps of 1
Time delay: 0.000 to 65.535 s in steps of 0.001
Timer accuracy: ±3% of operate time or ±1/4 cycle
(whichever is greater)
Current supervision:
Level: line-to-line current
Pickup: 0.050 to 30.000 pu in steps of 0.001
Dropout: 97 to 98%
Memory duration: 5 to 25 cycles in steps of 1
VT location: all delta-wye and wye-delta transformers
CT location: all delta-wye and wye-delta transformers
Voltage supervision pickup (series compensation applications):
0 to 5.000 pu in steps of 0.001
GE Multilin
PHASE DISTANCE OPERATING TIME CURVES
The operating times are response times of a microprocessor part
of the relay. See output contacts specifications for estimation of
the total response time for a particular application. The operating
times are average times including variables such as fault inception
angle or type of a voltage source (magnetic VTs and CVTs). The
figure shows zone 1 distance time curves for a 60 Hz system at
nominal system frequency.
D30 Line Distance Protection System
2.4 SPECIFICATIONS

2.4.1 PROTECTION ELEMENTS

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