Voltage Protections - ABB SACE Emax 2 Instructions 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.
protections UV2 and OV2 are not available by default with Ekip G Touch. However, they can be integrated by requesting the relative SW
(1)
package
Block configuration available via Ekip Connect
(2)
Summary table
ABB ANSI Threshold
(5)
U8 = 0,5...1 Un
UV 27
Step = 0,001 Un
U9 = 1...1,5 Un Step
OV 59
= 0,001 Un
U15 = 0,5...1 Un
UV2 27
Step = 0,001 Un
U16 = 1...1,5 Un
OV2 59
Step = 0,001 Un
U14 = 2...90 % Step
VU 47
(6)
= 1 %
Phase
47 1-2-3 / 3-2-1
Sequence
(3) calculation of t is valid for values which have exceeded the trip threshold of the protection
t
tolerance values valid with Trip unit supplied at full rate or by auxiliary power supply, trip time ≥ 100 ms, temperature and current values
(4)
within operating limits; the tolerance value is ± 20% if the conditions are not guaranteed
(5) ANSI / IEEE C37-2 codification
protection not active if the higher of the voltages measured is less than 0.3 Un
(6)
the trip unit considers 3% hysteresis for quitting alarm condition
(7)
19 | © 2023 ABB | 1SDH001316R1002 - ECN000297030
Th-
reshold
Tolerance
Time
threshold
t8 = 0,05...120 s
± 2 %
(7)
Step = 0,01 s
t9 = 0,05...120 s
± 2 %
(7)
Step = 0,01 s
t15 = 0,05...120 s
± 2 %
(7)
Step = 0,01 s
t16 = 0,05...120 s
± 2 % (7)
Step = 0,01 s
t14 = 0,5...60 s
± 5 %
Step = 0,5 s
Time Additional functions
Trip enable, Block
Trip enable, Block
Trip enable, Block
Trip enable, Block
Trip enable, Block
Calculation
Tolerance t
formula t
(3)
t
The best of the two values: ± 10% or ±
t = t8 40 ms (for set time < 5 s) / ± 100 ms (for
t
set time ≥ 5 s)
The best of the two values: ± 10% or ±
t = t9 40 ms (for set time < 5 s) / ± 100 ms (for
t
set time ≥ 5 s)
The best of the two values: ± 10% or ±
t = t15 40 ms (for set time < 5 s) / ± 100 ms (for
t
set time ≥ 5 s)
The best of the two values: ± 10% or ±
t = t16 40 ms (for set time < 5 s) / ± 100 ms (for
t
set time ≥ 5 s)
The best of the two values: ± 10% or ±
t = t14 40 ms (for set time < 5 s) / ± 100 ms (for
t
set time ≥ 5 s)
ABB | SACE Emax 2 ABB | SACE Emax 2
(2)
(4)
t
Protections