ABB RET670 Commissioning Manual

Verifying the settings by secondary injection
It is advised to connect the analog output channels of the function block OOSPPAM to the
internal disturbance recorder (and in particular to the function block A4RADR) in order
to perform a better analysis of the tests.
If the device is in test mode, the recording of the disturbances are enabled by the setting in
Main menu/Settings/IED Settings/Monitoring/Disturbance report/
DisturbanceReport/DRPRDRE:1: set the parameter OpModeTest to On.
1. Check the Application Configuration: verify that hardware voltage and current
channels of the IED are properly connected to SMAI function blocks, and that the
proper analog outputs of SMAI’s are connected to the analog inputs of the function
block OOSPPAM.
2. Connect three-phase voltage channels of the test set to the appropriate IED terminals.
3. Connect in parallel two groups of three-phase currents of the test set to the appropriate
IED terminals.
4. Connect the appropriate trip output of the IED to the input channel of the test set that
monitors the trip.
5. Go to Main menu/Settings/IED Settings/Impedance protection/
OutOfStep(78,Ucos)/OOSPPAM(78,Ucos):1, and make sure that the function is
enabled, that is, Operation is set to On.
11.4.12.2 Test of point RE (R
FwdR
, X
FwdX
)
The trajectory of the impedance does not enter the lens characteristic.
Preliminary steady state test at 50 Hz
• Go to Main menu/Test/Function status/Impedance protection/
OutOfStep(78,Ucos)/OOSPPAM(78,Ucos):1/Outputs to check the available
service values of the function block OOSPPAM.
• Apply the following three-phase symmetrical quantities (the phase angle is related to
phase L1):
V V
V
V
V
ts t FwdZ
VT s
VT p
= × × = × × =1 1 1 1 11931
0 1
13 8
95 1. .
.
.
.
,
,
,
EQUATION14057 V1 EN (Equation 17)
∠ =






=






=V
ForwardX
ForwardR
ts
arctan arctan
.
.
59 33
8 19
82..14°
EQUATION14058 V1 EN (Equation 18)
frequency of V
ts
= 50 Hz
Section 11 1MRK 504 165-UUS -
Testing functionality by secondary injection
156 Transformer protection RET670 2.2 ANSI
Commissioning manual

ABB RET670 Specifications

General

Rated Frequency	50/60 Hz
Inputs	Analog and binary inputs
Application	Protection of power systems
Communication Protocols	IEC 61850, DNP3, Modbus
Operating Temperature Range	-25°C to +55°C
Mounting	Rack mounted
Number of Binary Inputs	Up to 48
Number of Binary Outputs	32
Protection Functions	Overcurrent Protection
Outputs	Binary outputs
Enclosure	IP 54
Type	Line Differential Protection
Number of Analog Inputs	24