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35
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STS CONTROL software supports RS232 and TCP/IP connection.
TECHNICAL SPECIFICATIONS
INPUT
Input voltage
180-250 volts AC 3 phase (3 phase +neutral)
Neutral switching
Optional
Input voltage analog error window
adjustable from service menu
Input voltage distortion
Less than 10%
Input Blackout sensing
Available
Input blackout error window
Adjustable from service menu
Phase balance error sensing
Available (user can disable)
Phase balance error sense offset
adjustable
Input frequency
50Hz or 60 Hz (adjustable from service menu) +-5%
Input frequency error window
Adjustable (from service menu)
Phase sequency sense
Available
Phase sequency alarm
Enabled or disabled by the user
Input MCCB trip during short circuit
Available
Back feed protection
Available
OUTPUT
Output voltage
Same as input
Output frequency
Same as input
Rated current
50-100-150-200-300-400 amperes per phase and neutral according to
models (STS450- STS4100- STS4150- STS4200- STS4300- STS4400)
respectively.
Load crest factor
Up to 3.5
Type of transfer
Break before make
Synchron Transfer time
max 1.8 msec (on 0 current mode)
Non synchron transfer time
max 10 msec in 0 current mode, 0-25 sec adjustable in delay mode and
in 0 current mode.
Flying transfer
Available
Load PF range
0.6 lag to 0.9 lead
PROGRAMMING
Synchron
Non synchron with delay
Transfer mode
Non synchron 0 current:Transfers each phase on 0 current
Synchron transfer delay
0-current transfers in max 1.8 miliseconds
Non synchron transfer mode
Disable
Delay and transfer
Wait for zero current for each phase and transfer
Non synchron transfer delay
0-25 seconds adjustable
Digital synchronization check
digital: Calculation of angle between sources
Analog synchronization check
Analog sense: Measuring voltage difference
Phase angle error
0-20 degrees adjustable
Preferred source
Selectable
Retransfer
ON : transfers to alternate source and retransfers to the preferred source
OFF :transfers to alternate source and stay until it fails.
Retransfer mode
Wait synchron ,Delay ,0-current ,Flying transfer
Retransfer delay
1-60 seconds adjustable
Alarm hold time
5-60 seconds adjustable
Input blackout sense
0.1-25 miliseconds adjustable
Overload inhibit
Disable : do not sense overload
Enable: applies for different loads and for different times
100%-150% 1 minute
150%-200% 10 seconds
>200%- 0,5 seconds
1000% 20 msecs
Overload inhibit resetting
Manual or automatic reset
Inhibit resetting
Manual ot automatic
Summary of Contents for InfoSTS
Page 45: ...44 Figure 28...
Page 47: ...NOTES...