ABB Relion 650 Series Technical Manual page 225

1MRK 506 326-UUS B
• The IED is in test mode and BRCPTOC (46) has been blocked from the HMI test menu
Blocked = Yes ).
(
• The input signal BLOCK is high.
The BLOCK input can be connected to a binary input of the IED in order to receive a block
command from external devices, or can be software connected to other internal functions of the
IED itself to receive a block command from internal functions.
The output trip signal TRIP is a three-phase trip. It can be used to command a trip to the circuit
breaker or for alarm purpose only.
TEST
Block BRCPTOC=Yes
BLOCK
PU_N
IA<50%
IB<50%
IC<50%
ANSI09000158 V1 EN-US
Figure 116: Simplified logic diagram for Broken conductor check BRCPTOC (46)
6.14.8 Technical data
Table 143: BRCPTOC (46) technical data
Function
Minimum phase current for operation
Unbalance current operation
Timer
Trip time for pickup function
Reset time for pickup function
Critical impulse time
Impulse margin time
Line distance protection REL650
Technical manual
TEST-ACTIVE
&
Function Enable
=
1
Unsymmetrical
Current Detection
Pickup_PH
=
Pickup_PH
Pickup_PH
© Copyright 2011 ABB Power Grids. All rights reserved
&
1
Range or value
IBase
(5–100)% of
(50-90)% of maximum current
(0.00-60.000) s
35 ms typically
30 ms typically
15 ms typically
10 ms typically
PICKUP
t
TRIP
t
ANSI09000158-1-en.vsd
Accuracy
± 1.0% of I
n
± 2.0% of I
n
± 0.5% ± 25 ms
-
-
-
-
Section 6
Current protection
SEMOD175200-2 v4
219