Testing – 6
6–27
46IT Negative Sequence Overcurrent Inverse Time
VOLTAGE INPUTS:
Configuration V1
CURRENT INPUTS:
Configuration C2, C3 or C4 (MODIFIED)
TEST SETTINGS:
Inverse Time Pickup
P
Amps
(0.50 to 5.00)
1 Amp CT Rating
(0.10 to 1.00)
Standard Inverse Time Curves:
1
Curve
C
(1 to 4)
Time Dial
TD
(0.5 to 11.0)
IEC Inverse Time Curves:
1
IEC Curve
C
(5 to 8)
IEC Time Dial
TD
(0.05 to 1.10)
IEEE Inverse Time Curves:
1
IEEE Curve
C
(9 to 11)
IEEE Time Dial
TD
(0.5 to 15.0)
Programmed Outputs
Z
OUT
(1 to 8)
Expanded I/O
(9 to 16)
Function 46DT, 49
Disable
Function 50BF
Disable
Function 50W2/W3/W4
Disable
Function 50N
Disable
Function 51, 51N
Disable
Function 87H/87T
Disable
Function 87GD
Disable
1. Disable functions as shown. Refer to Section 4.4,
System Setpoints
, for procedures.
2. Confirm settings to be tested.
3. Connect inputs in Configuration V1 and C2 (MODIFIED) as designated previously. Refer to Section
6.4,
Input Configurations
, for configurations. The modification to C2 is to exchange Current
Input 2 and 3 (B
current = input 3 and C
current = input 2). This modification is for ABC phase
rotation. Use ABC connection for ACB phase rotation. Set Voltages = Nominal Voltage.
NOTE
: For proper testing use
I
O
3 X CT rating.
4.
IEC Curve Testing
: Test current level may be chosen as a multiple of any level within the Pickup
(
P
) range. Calculate the operating time for the applied current and appropriate Time Dial (
TD
)
setting from the table below. Choose 4 or 5 test levels and calculate the operating times for each.
t = time in seconds TD = Time Dial setting M = current in multiples of pickup
1
Either a Standard Curve, IEC Curve or IEEE Curve must be selected.
Summary of Contents for M?3311A
Page 1: ...Instruction Book M 3311A Transformer Protection Relay ...
Page 30: ... 29 M 3311A Transformer Protection Relay This Page Left Intentionally Blank ...
Page 55: ...M 3311A Instruction Book 1 6 This Page Left Intentionally Blank ...
Page 87: ...M 3311A Instruction Book 2 32 This Page Left Intentionally Blank ...
Page 89: ...M 3311A Instruction Book 3 2 Figure 3 2 IPScom Main Screen ...
Page 107: ...M 3311A Instruction Book 3 20 Figure 3 22 Setup System Dialog Screen 2 3 Winding ...
Page 108: ...IPScom 3 3 21 Figure 3 23 Setup System Dialog Screen 4 Winding ...
Page 112: ...IPScom 3 3 25 Figure 3 29 I O Map Screen 4 Winding ...
Page 114: ...IPScom 3 3 27 Figure 3 31 Display All Setpoints Screen 4 Winding ...
Page 119: ...M 3311A Instruction Book 3 32 Figure 3 38 View Sequence of Events Recorder Screen ...
Page 127: ...M 3311A Instruction Book 3 40 This Page Left Intentionally Blank ...
Page 150: ...4 23 System Setup and Setpoints 4 Figure 4 14 Setup Sequence of Events Recorder Dialog Screen ...
Page 163: ...4 36 M 3311A Instruction Book Figure 4 15 IPScom Relay Setup System Dialog Screen 2 3 Winding ...
Page 166: ...4 39 System Setup and Setpoints 4 Figure 4 18 IPScom Selection Screen for Input Settings ...
Page 179: ...4 52 M 3311A Instruction Book Figure 4 28 Example of V Hz Capability and Protection Curves ...
Page 187: ...4 60 M 3311A Instruction Book Figure 4 33 49 Function Overload Curves ...
Page 229: ...4 102 M 3311A Instruction Book Table 4 5 Transformer Connections ...
Page 231: ...4 104 M 3311A Instruction Book Table 4 7 Custom Transformer and CT Configuration ...
Page 243: ...M 3311A Instruction Book 5 6 Figure 5 5 Mounting Dimensions for GE L 2 Cabinet H3 and H4 ...
Page 383: ...A 50 M 3311A Instruction Book This Page Left Intentionally Blank ...
Page 389: ...M 3311A Instruction Book B 6 This Page Left Intentionally Blank ...
Page 393: ...D 2 M 3311A Instruction Book Figure D 1 Volts Hz 24IT Inverse Curve Family 1 Inverse Square ...
Page 394: ...Inverse Time Curves Appendix D D 3 Figure D 2 Volts Hz 24IT Inverse Family Curve 2 ...
Page 395: ...D 4 M 3311A Instruction Book Figure D 3 Volts Hz 24IT Inverse Time Curve Family 3 ...
Page 396: ...Inverse Time Curves Appendix D D 5 Figure D 4 Volts Hz 24IT Inverse Curve Family 4 ...
Page 399: ...D 8 M 3311A Instruction Book Figure D 5 Definite Time Overcurrent Curve ...
Page 400: ...Inverse Time Curves Appendix D D 9 Figure D 6 Inverse Time Overcurrent Curve ...
Page 401: ...D 10 M 3311A Instruction Book Figure D 7 Very Inverse Time Overcurrent Curve ...
Page 402: ...Inverse Time Curves Appendix D D 11 Figure D 8 Extremely Inverse Time Overcurrent Curve ...
Page 439: ...F 28 M 3311A Instruction Book This Page Left Intentionally Blank ...