ABB Zenith ZTX Series Operation, Maintenance, And Installation Manual page 20

20
Z e n i t h Z T X S e r i e s AT S , O P E R AT I O N , M A I N T E N A N C E , A N D I N S TA L L AT I O N G U I D E
Feature comparison
Source failure detections
No voltage
Undervoltage
Overvoltage
Phase missing
Voltage unbalance
Invalid frequency
Incorrect phase sequence
Features
Controls
LED indications for ATS, S1 and S2 status
Open transition - Standard digital inputs/outputs
Programmable digital inputs/outputs
Auto config (voltage, frequency, phase system)
Source priority
Manual retransfer
In-phase monitor (synchro check)
Genset exercising: on-load, off-load
Load shedding
Real time clock
Event log
Predictive maintenance
Harmonics measuring
ZTX controls (DIP)
S1 S2
l ll !
LOAD AUTO
Auto In-phase Priority Manual
config monitor retransfer
Start On No priority On
Ok Off Source 1 Off
Dropout ∆U / ∆f ∆U 5% / ∆f 5%
∆U 10% / ∆f 5%
∆U 15% / ∆f 10%
∆U 20% / ∆f 10%
Generator
stop delay
S1 Failure S1 Return
delay [s] delay [min]
0 2 4 10 20 30 s
1 3 5 15 30 4 min
Off On Bypass
Lamp Auto
load load time
test
Alarm reset
test test delay
l ll
ON ON
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DIP + keys
Yes
0 / 1
No
Yes
Source 1, No priority
Yes
Yes
Yes, via Ekip Connect
No
Yes
Yes, via Ekip Connect
No
No