ABB MDAR Instruction Manual page 29

Information
Fault location
Fault Z angle
Fault distance
Prefault load current
Prefault phase voltage
Prefault load angle
Carrier send
RCVR #1
Fault voltage VA (mag.)
(ang.)
Fault voltage VB (mag.)
(ang.)
Fault voltage VC (mag.)
(ang.)
Fault voltage 3VO(mag.)
(ang.)
Fault current IA (mag.)
(deg.)
Fault current IB (mag.)
(deg.)
Fault current IC (mag.)
(deg.)
Fault current 3I0(mag.)
(deg.)
Pol. current IP (mag.)
(deg.)
* Optional
Note: All displayed phase angles are referred to VA as reference.
Note: The "Relay In Service" LED indicates the MDAR (REL-300)ms system is in-service. It will come on
when the dc is applied and after the system is initialized.
(4) Test Functions Display
Five functions are available in the test function mode. They are: STAT, ADC, RS1, TK and TRIP.
STAT The STAT is the relay self-check status. MDAR (REL-300) jumps to the test mode status display
(STAT) to show the cause of the problem. A zero value indicates that no self-check failure has
occurred. A nonzero hex byte form value indicates hardware or software failed. Refer to Chapter
VIII for more detail.
ADC The ADC value display is for use in calibration of the analog input to MDAR (REL-300) and is only
visible when MDAR (REL-300) is in calibration mode (JMP6 on processor module installed). Refer
to Appendix E for calibration.
RS1, TK and TRIP
These selections are for functional tests. When the selector is in the test mode,
scroll the function field by the raise pushbutton. The value field display shows
RS1, (Carrier receiver #1), and TK (Carrier send). Refer to Chapter VIII for more
detailed information.
Display
Function
Field
Z
FANG
DMI or DKM
PFLC
PFLV
LP
SEND
RX1
VPA
∠
VPA
VPB
∠
VPB
VPC
∠
VPC
3VO
∠
3VO
IPA
∠
IPA
IPB
∠
IPB
IPC
∠
IPC
3IO
∠
3IO
IP
∠
IP
I.L. 40-385.5
Value
Field (note)
In ohms
numerical
In miles or KM
numerical, A
numerical, V
numerical, deg.
numerical,
numerical,
numerical, V
numerical, deg.
numerical, V
numerical, deg.
numerical, V
numerical, deg.
numerical, V
numerical, deg.
numerical, A
numerical, deg.
numerical, A
numerical, deg.
numerical, A
numerical, deg.
numerical, A
numerical, deg.
numerical, A
numerical, deg.
7-7