ABB Zenith ZBTS T Series - Page 31

31
34ZBTS_30-1200A rev.A / 1SCC303043M0201
1
10:55
TruONE ATS
Bypass System Overview
Bypass Status
Connected
Test
Isolated
ATS Status
Connected
Test
Isolated
G
3.3.1.2 Bypass System Overview
—
Fig. 3.10 Last page shows Bypass System Overview
Draw-out Locations
• Connected = Main and Control circuit
connected
• Test = Main circuit isolated
• Isolated = Main and Control circuit iso-
lated
• Connected - Test - Isolated = Location
error; If another switch is moved in/out
or there is some failure in location sta-
tus
Basic information can be found in both
switches' own HMI, see Fig. 3.12:
1 Source Available
2 Switch position I-O-II
3 Switch location
4 Supply ok and connected to load
NOTE! The LOAD led should be ON when
the switch is at Connected location and
on I or II-position. At Test location the
LOAD led should be OFF because the main
circuit of the switch is isolated.
AUTO
!
S1 S2
l
ll
O
LOAD
S1 S2
l
ll
O
LOAD
—
Fig. 3.11 Connected location and I-position: LED is ON,
Test location: LED is OFF
Lamp
test
l
ON
Off
load
test
ll
ON
Auto
Alarm reset
On
load
test
Bypass
time
delay
Dropout ΔU / Δf
Manual
retransfer
Generator
stop delay
4 min
30 s
ΔU 5% / Δf 5%
ΔU 10% / Δf 5%
ΔU 15% / Δf 10%
ΔU 20% / Δf 10%
0
1
2
3
4
5
10
15
20
30
S1 Failure
delay
[s]
S1 Return
delay
[min]
On
Off
Auto
config
Start
Ok
Priority
No priority
Source 1
In-phase
monitor
Off
On
AUTO
!
LOAD
l
ll
O
O Position
delay
4 s
0 s
O
OFF
S1 S2
Lamp
test
l
ON
Off
load
test
ll
ON
Auto
Alarm reset
On
load
test
Bypass
time
delay
Dropout ΔU / Δf
Manual
retransfer
Generator
stop delay
4 min
30 s
ΔU 5% / Δf 5%
ΔU 10% / Δf 5%
ΔU 15% / Δf 10%
ΔU 20% / Δf 10%
0
1
2
3
4
5
10
15
20
30
S1 Failure
delay
[s]
S1 Return
delay
[min]
On
Off
Auto
config
Start
Ok
Priority
No priority
Source 1
In-phase
monitor
Off
On
AUTO
!
S1 S2
LOAD
ll
O
O Position
delay
4 s
0 s
O
OFF
l
S1 Connected to Load
ATS Connected
Load Current
.... A
04:11
G
TruONE ATS
Switch Overview
S1 p Ok Ok S2
1
1
3
4
05:17
TruONE ATS
Bypass System Overview
G
Bypass Status
Connected
Test
Isolated
ATS Status
Connected
Test
Isolated
3
2
—
Fig. 3.12 Basic information can be found in both switches'
own HMI
NOTE! Normally, the ATS is in the rack at
Connected location and on the I-position,
it supplies the load. At the same time, the
Bypass switch is also at Connected loca-
tion, but it is on the O-position. Remark;
The fixed type Bypass is always consid-
ered to be at Connected location.