Basler BE1-11g Instruction Manual page 536

524
Setting
Phase VT
Connection
27/59 Mode
Block Impedance
Elements
Element Mode
Directional
Supervision Angle
mho Characteristic 1
Diameter
(secondary ohm)
mho Characteristic 1
Offset
(secondary ohm)
mho Characteristic 1
Time Delay (ms)
mho Characteristic 1
Voltage Pickup
(secondary V)
mho Characteristic 1
Voltage Time Delay
(ms)
Step 2: Use BESTCOMSPlus to configure the BESTlogicPlus programmable logic shown in Figure 327.
•
Blocking is disabled.
•
OUT1 closes for non-voltage control trip.
•
OUT2 closes for non-voltage control pickup
•
OUT3 closes for voltage control trip.
•
OUT4 closes for voltage control pickup.
•
Fault recording is enabled.
Step 3: Prepare to monitor the 40Z function operation. Operation can be verified by monitoring OUT2
(40Z pickup) and OUT4 (40Z VC pickup, see Figure 327).
Step 4: Connect and apply balanced three-phase 2.0∠90° A, 2.0∠330° A, 2.0∠210° A to terminals D1
through D6 and a balanced three-phase 11.0∠0° V, 11.0∠240° V, 11.0∠120° V phase-neutral
voltage source to terminals C13 (A-phase), C14 (B-phase), C15 (C-phase), and C16 (Neutral).
All outputs should remain open.
Step 5: Slowly decrease the voltage level until OUT2 closes. Record the pickup. This should occur at
10V ±0.3 V. Verify that there is a 40Z-Z1 target on the front-panel display.
Step 6: Continue decreasing the voltage until OUT4 closes (VC pickup). Record the pickup. This should
occur at 8V ±0.08V. Slowly increase voltage until OUT4 opens. Continue increasing until OUT2
opens. Reset the target. Impedance values for this test have been converted to measureable
phase-neutral voltages.
Loss of Excitation – Impedance Based (40Z) Test
Value BESTCOMSPlus Screen
4W-Y System Parameters, Sensing
Transformers
PN System Parameters, Sensing
Transformers
Disabled Alarm Configuration, Fuse Loss
(unchecked) (60FL)
Both Protection, Impedance, Loss of
Excitation – Impedance Based (40Z)
–45.0
Protection, Impedance, Loss of
Excitation – Impedance Based (40Z)
10.0 Protection, Impedance, Loss of
Excitation – Impedance Based (40Z)
5.0 Protection, Impedance, Loss of
Excitation – Impedance Based (40Z)
2,000 Protection, Impedance, Loss of
Excitation – Impedance Based (40Z)
8 Protection, Impedance, Loss of
Excitation – Impedance Based (40Z)
1,000 Protection, Impedance, Loss of
Excitation – Impedance Based (40Z)
9424200994 Rev U
Description
Sets phase VT
connection to 4W-Y
Sets 27/59 mode to
phase-neutral
Disables fuse loss
protection
Enables both the non
voltage control and
voltage control
elements
Sets the supervisory
angle to –45°
Sets the first mho
characteristic diameter
to 10.0 Ω
Sets the first mho
characteristic offset to
5.0 Ω
Sets the non voltage
control 40Z time delay
to 1,000 ms
Sets the supervisory
voltage inhibit to 10V
Sets the voltage
controlled 40Z time
delay to 2,000 ms
BE1-11g