Voltage Protections - ABB SACE Emax 2 Manual

3 - Voltage protections

List
The Voltage protections, available by default for Ekip Hi-Touch, Ekip G Touch, Ekip G-Hi Touch models and configurable in the remaining models
as additional SW package, are:
Name Type of protection
UV Minimum voltage
OV Maximum voltage
UV2 Minimum voltage
(1)
OV2 Maximum voltage
(1)
VU Voltage unbalance
Phase Sequence Phase sequence error
Further details about the protections are given in document 1SDH001330R1002.
(1)
protections UV2 and OV2 are not available by default with Ekip G Touch. However, they can be integrated by requesting the relative SW package
(2)
Block configuration available via Ekip Connect
Summary table
ABB ANSI
(5)
UV 27
OV 59
UV2 27
OV2 59
VU 47
(6)
Phase
47
Sequence
(3)
calculation of t is valid for values which have exceeded the trip threshold of the protection
t
(4) tolerance values valid with Trip unit supplied at full rate or by auxiliary power supply, trip time ≥ 100 ms, temperature and current values within
operating limits; the tolerance value is ± 20% if the conditions are not guaranteed
(5)
ANSI / IEEE C37-2 codification
(6)
protection not active if the higher of the voltages measured is less than 0.3 Un
(7)
the Trip unit considers a 3% hysteresis for quitting the alarm condition
32 | © 2019 ABB | 1SDH001316R1002 - ECN000086501 - Rev. A
Tolerance
Threshold
threshold
U8 = 0,05...1 Un
± 2 %
(7)
Step = 0,001 Un
U9 = 1...1,5 Un
± 2 %
(7)
Step = 0,001 Un
U15 = 0,05...1 Un
± 2 %
(7)
Step = 0,001 Un
U16 = 1...1,5 Un
± 2 %
(7)
Step = 0,001 Un
U14 = 2...90 %
± 5 %
Step = 1 %
1-2-3 / 3-2-1
Threshold Time
Calculation
Time
formula t
t8 = 0,05...120 s
t = t8
Step = 0,01 s
t
t9 = 0,05...120 s
t = t9
Step = 0,01 s
t
t15 = 0,05...120 s
t = t15
Step = 0,01 s
t
t16 = 0,05...120 s
t = t16
Step = 0,01 s
t
t14 = 0,5...60 s
t = t14
Step = 0,5 s
t
Additional functions
(2)
Trip enable, Block
Trip enable, Block
Trip enable, Block
Trip enable, Block
Trip enable, Block
Tolerance t
(4)
(3)
t
t
The best of the two values: ± 10% or ± 40
ms (for set time < 5 s) / ± 100 ms (for set
time ≥ 5 s)
The best of the two values: ± 10% or ± 40
ms (for set time < 5 s) / ± 100 ms (for set
time ≥ 5 s)
The best of the two values: ± 10% or ± 40
ms (for set time < 5 s) / ± 100 ms (for set
time ≥ 5 s)
The best of the two values: ± 10% or ± 40
ms (for set time < 5 s) / ± 100 ms (for set
time ≥ 5 s)
The best of the two values: ± 10% or ± 40
ms (for set time < 5 s) / ± 100 ms (for set
time ≥ 5 s)
Protections | 3 - Voltage protections
ABB | SACE Emax 2