undervoltage (27.S2), maximum overfrequency (81.S1), maximum overfrequency
(81.S2), and minimum underfrequency (81.S1), and minimum underfrequency
(81.S2).
Figure 7-20 IPS test
Table 7-5 IPS test type
IPS Test Type Description
Maximum voltage
over 10 min
(59.S1)
The default maximum voltage over 10 min protection
threshold is 253 V (1.10 Vn), and the default protection
time threshold is 3s.
Maximum
overvoltage
(59.S2)
The default overvoltage protection threshold is 264.5 V
(1.15 Vn), and the default protection time threshold is 0.2s.
Minimum
undervoltage
(27.S1)
The default undervoltage protection threshold is 195.5 V
(0.85 Vn), and the default protection time threshold is 1.5s.
Minimum
undervoltage
(27.S2)
The default undervoltage protection threshold is 34.5 V
(0.15 Vn), and the default protection time threshold is 0.2s.
Maximum
overfrequency
(81.S1)
The default overfrequency protection threshold is 50.2 Hz,
and the default protection time threshold is 0.1s.
SUN2000-(2KTL-6KTL)-L1
User Manual 7 Man-Machine Interaction
Issue 04 (2021-04-01) Copyright © Huawei Technologies Co., Ltd. 78
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