ABB CM-PVS 작동 및 설치 지침 - 페이지 7
{카테고리_이름} ABB CM-PVS에 대한 작동 및 설치 지침을 온라인으로 검색하거나 PDF를 다운로드하세요. ABB CM-PVS 12 페이지. Single-function three-phase monitoring relays
페이지 인쇄
IV Function diagrams
a) ON-delayed
over- and undervoltage monitoring
CM-PSS, CM-PVS
L1, L2, L3
> U
> U - 5 %
Measured value
< U + 5 %
< U
t s
t v
15-18
15-16
25-28
25-26
F1: red LED
F2: red LED
R/T: yellow LED
t
= start-up delay fixed 200 ms
s
t
= adjustable tripping delay
v
b) OFF-delayed
over- and undervoltage monitoring
CM-PSS, CM-PVS
L1, L2, L3
> U
> U - 5 %
Measured value
< U + 5 %
< U
t s
15-18
15-16
25-28
25-26
F1: red LED
F2: red LED
R/T: yellow LED
t
= start-up delay fixed 200 ms
s
t
= adjustable tripping delay
v
c) ON-delayed
phase unbalance monitoring
CM-PAS
L1, L2, L3
Unbalance
L3
Unbalance -Hyst.
Measured value
L1, L2, L3 L1, L2
Unbalance +Hyst.
Unbalance
t s
t v
15-18
15-16
25-28
25-26
F1: red LED
F2: red LED
R/T: yellow LED
t
= start-up delay fixed 200 ms
s
t
= adjustable tripping delay
v
<t v
t v
<t v
<t v
t v
<t v
t v
d) Phase sequence and phase failure monitoring
CM-PAS, CM-PSS, CM-PVS
L1, L2, L3
Measured value
L1, L2, L3
L1, L3, L2
t s
15-18
15-16
25-28
25-26
F1: red LED
F2: red LED
R/T: yellow LED
t
= start-up delay fixed 200 ms
s
e) Phase sequence and phase failure monitoring
CM-PFS
L1, L2, L3
Measured value
L1, L2, L3
L1, L3, L2
t s
11-14
11-12
21-24
21-22
F: red LED
R: yellow LED
t
= start-up delay fixed 500 ms
s
L1, L2, L3
L1, L2
L1, L2, L3
L1
L1, L2, L3
L3
L2, L3
L1, L2, L3
L1, L2
L1, L2, L3
L1
L1, L2, L3
L3
L2, L3
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