3-12
D60 Line Distance Protection System
GE Multilin
3.2 WIRING
3 HARDWARE
3
3.2.6 CONTACT INPUTS AND OUTPUTS
Every contact input/output module has 24 terminal connections. They are arranged as three terminals per row, with eight
rows in total. A given row of three terminals can be used for the outputs of one relay. For example, for form-C relay outputs,
the terminals connect to the normally open (NO), normally closed (NC), and common contacts of the relay. For a form-A
output, there are options of using current or voltage detection for feature supervision, depending on the module ordered.
The terminal configuration for contact inputs is different for the two applications.
The contact inputs are grouped with a common return. The D60 has two versions of grouping: four inputs per common
return and two inputs per common return. When a contact input/output module is ordered, four inputs per common is used.
If the inputs must be isolated per row, then two inputs per common return should be selected (4D module).
The tables and diagrams on the following pages illustrate the module types (6A, etc.) and contact arrangements that can be
ordered for the relay. Since an entire row is used for a single contact output, the name is assigned using the module slot
position and row number. However, since there are two contact inputs per row, these names are assigned by module slot
position, row number, and column position.
Some form-A / solid-state relay outputs include circuits to monitor the DC voltage across the output contact when it is open,
and the DC current through the output contact when it is closed. Each of the monitors contains a level detector whose out-
put is set to logic “On = 1” when the current in the circuit is above the threshold setting. The voltage monitor is set to “On =
1” when there is a voltage across open contact (the detector allows a current of about 1 to 2.5 mA), and the current monitor
is set to “On = 1” when the current flowing through the closed contact exceeds about 80 to 100 mA. The voltage monitor is
intended to check the health of the overall trip circuit, and the current monitor can be used to seal-in the output contact until
an external contact has interrupted current flow. If enabled, the current monitoring can be used as a seal-in signal to ensure
that the form-A contact does not attempt to break the energized inductive coil circuit and weld the output contacts.
Block diagrams are shown as follows for form-A and solid-state relay outputs with optional voltage monitor, optional current
monitor, and with no monitoring. The actual values shown for contact output 1 are the same for all contact outputs. Form-A
contact output with or without a current or voltage monitoring option is not polarity sensitive. The polarity shown in the figure
is required for solid-state contact output connection.
Figure 3–14: FORM-A AND SOLID-STATE CONTACT OUTPUTS WITH VOLTAGE AND CURRENT MONITORING
Load
I
~#a
~#b
~#c
V
827862A4.CDR
+
+
+
+
+
a) Voltage with optional
current monitoring
Voltage monitoring only
Load
I
V
Both voltage and current monitoring
Load
I
V
b) Current with optional
voltage monitoring
Current monitoring only
Both voltage and current monitoring
(external jumper a-b is required)
Load
V
Load
c) No monitoring
~#a
~#b
~#c
~#a
~#b
~#c
~#a
~#b
~#c
~#a
~#b
~#c
I
Содержание D60
Страница 61: ...GE Multilin D60 Line Distance Protection System 2 31 2 PRODUCT DESCRIPTION 2 3 SPECIFICATIONS 2 ...
Страница 62: ...2 32 D60 Line Distance Protection System GE Multilin 2 3 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 ...
Страница 102: ...3 40 D60 Line Distance Protection System GE Multilin 3 3 DIRECT INPUT AND OUTPUT COMMUNICATIONS 3 HARDWARE 3 ...
Страница 134: ...4 32 D60 Line Distance Protection System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Страница 508: ...5 374 D60 Line Distance Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 538: ...6 30 D60 Line Distance Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Страница 610: ...10 8 D60 Line Distance Protection System GE Multilin 10 2 BATTERIES 10 MAINTENANCE 10 ...
Страница 622: ...A 12 D60 Line Distance Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Страница 745: ...GE Multilin D60 Line Distance Protection System B 123 APPENDIX B B 4 MEMORY MAPPING B ...
Страница 746: ...B 124 D60 Line Distance Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Страница 776: ...C 30 D60 Line Distance Protection System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Страница 792: ...E 10 D60 Line Distance Protection System GE Multilin E 1 IEC 60870 5 104 PROTOCOL APPENDIX E E ...
Страница 804: ...F 12 D60 Line Distance Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Страница 826: ...xii D60 Line Distance Protection System GE Multilin INDEX ...