ABB Zenith ZTX Series, Operation, Maintenance, And Installation Manual

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Ze nit h Z T X S e r i e s AT S , O PER ATI O N , M A I NTEN A N CE , A N D I N S TA LL ATI O N G U I D E
Feature comparison ZTX controls (DIP)
Lamp
test
l
ON
Off
load
test
ll
ON
Auto
Alarm reset
On
load
test
Bypass
time
delay
Dropout ∆U / ∆f
Manual
retransfer
Generator
stop delay
4 min
30 s
∆U 5% / ∆f 5%
∆U 10% / ∆f 5%
∆U 15% / ∆f 10%
∆U 20% / ∆f 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
l ll
Source failure detections
No voltage
Yes
Undervoltage Yes
Overvoltage Yes
Phase missing Yes
Voltage unbalance Yes
Invalid frequency Yes
Incorrect phase sequence Yes
Features
Controls
DIP + keys
LED indications for ATS, S1 and S2 status Yes
Open transition - Standard digital inputs/outputs 0 / 1
Programmable digital inputs/outputs No
Auto config (voltage, frequency, phase system) Yes
Source priority Source 1, No priority
Manual retransfer Yes
In-phase monitor (synchro check) Yes
Genset exercising: on-load, off-load Yes, via Ekip Connect
Load shedding No
Real time clock Yes
Event log Yes, via Ekip Connect
Predictive maintenance No
Harmonics measuring No