ABB Relion 670 Series Commissioning Manual page 108

Section 10
Testing functionality by secondary injection
10.5.3.1 Function revision history
Document
revision
A
B
C
D
E
F
H
J
10.5.3.2 Verifying the settings
1. Apply a single-phase voltage either to a single-phase voltage input or to a residual voltage input
with the pickup value below the set value Pickup1.
2. Slowly increase the value until PU_ST1 appears.
3. Note the trip value and compare it with the set value.
4. Decrease the voltage slowly and note the reset value.
5. Set and apply a 20% higher voltage than the measured trip value for one phase.
6. Measure the time delay for the TRST1 signal and compare it with the set value.
7. Check the inverse time delay by injecting a voltage corresponding to 1.2 × Vpickup>.
( )
t s
IECEQUATION2429 V1 EN-US
( )
t s
ANSIEQUATION2429 V1 EN-US
where:
t(s)
TD1
V
Vpickup> Set pickup voltage for step 1
102
Product History
revision
2.2.1 -
2.2.1 -
2.2.2 -
2.2.3 -
2.2.3 -
2.2.4 -
2.2.4 -
2.2.5 -
For example, if the inverse time curve A is selected, the trip signals TRST1 and TRIP
trip after a time corresponding to the equation:
k 1
=
 
U
−
1
 
>
 
U 1
TD 1
=
æ ö
V
-
1
ç ÷
>
Vpickup
è ø
Trip time in seconds
Settable time multiplier of the function for step 1
Measured voltage
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1MRK 505 372-UUS Rev. K
GUID-22110E0B-DEFB-461F-A437-4D221DB88799 v2
SEMOD54358-35 v11
(Equation 20)
(Equation 21)
Busbar protection REB670
Commissioning manual