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Tescom STS's(Static Transfer switch) are designed to transfer the supply between two independent AC power sources, it monitors two input source and if one fails it will automatically transfer the load to the other source. |
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TESCOM STS MAIN FUNCTIONS: |
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Increased power quality |
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Increased noise reduction |
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Power blackout protection |
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Power redundancy |
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Automatic static switching |
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Remote monitoring input power sources |
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Easy static and mechanical transfer to input sources |
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Remote management the power events |
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Power event logging |
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UPS redundancy |
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| 3 Phase static transfer switch | |||||
| MODEL | STS325 | STS350 | STS3100 | STS3150 | STS3200 |
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INPUT |
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| Voltage | 230/400 Vac 4 wires | ||||
| Input voltage analog error window | adjustable | ||||
| Blackout error window | adjustable | ||||
| Frequency | 50 Hz or 60 Hz, +/- %-5 | ||||
| Input frequency error window | adjustable | ||||
| Voltage distortion | <%10 | ||||
| Phase balance error sense offset | adjustable | ||||
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OUTPUT |
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| Current | 25A | 50A | 100A | 150A | 200A |
| Voltage | 230/400 Vac 4 wires | ||||
| Frequency | 50 Hz or 60 Hz, +/- %-5 | ||||
| Overcurrent inhibit LCD front panel,MBP | standard | ||||
| Load crest factor | upto 3.5 | ||||
| Protection | SCR protection and overcurrent protection available | ||||
| AC/AC efficiency | >%98 | ||||
| Load PF range | 0.6 lag to 0.9 lead | ||||
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GENERAL |
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| Dry contacts | 7 dry contact outputs | ||||
| Switched neutral | optional | ||||
| Type of transfer | break before make | ||||
| Transfer time | <5 msec within CBEMA & IEEE for synchronized sources | ||||
| <11 msec for unsynchronized sources | |||||
| Overload | 150% for 15 min, 1000% for 40 msec | ||||
| Cooling | two fans(reduntant) | ||||
| Standards | EN50091-2 class A ISO9001 | ||||
| Communication | >Advanced RS232 | ||||
| Cabinet interior temperature sensor | >available | ||||
| Ambient temperature | 0 - 40 ºC | ||||
| Humidity | 0 - 95%(non condensed) | ||||
| Dimensions(WxDxH) | 570x500x1415 | ||||
| FEATURES: | |||||
| Easy monitoring all parameters on LCD display | |||||
| FAst microcontroller 32 mips | |||||
| Password protected login system from remote site (timed Access) | |||||
| Two redundant power supplies for boards(hot swap) | |||||
| Easy front access to all components inside of the STS | |||||
| Second protection cover on live circuits which prevent electrical shock | |||||
| Input sources protected by fuses | |||||
| Three positioned maintenance by-pass switch which prevents cross currents between input sources | |||||
| All parameters can be adjusted by the user with a password | |||||
| Real time clock built in | |||||
| Alarm history(with date and time) | |||||
| Automatic transfer test from remote site or front panel | |||||
| Front panel lamp test | |||||
| External emergency shutdown(EPO) input | |||||
| Hot plug construction during maintenance by-pass | |||||
| High current output tolerant upto 1000% | |||||
| Adjustable long dead time during nonsynchron transfer up to 3 seconds | |||||
| SCR fault sense circuit built in | |||||
| Fast voltage black out circuit | |||||
| Input phase balance circuit | |||||
| Output alternance balance circuit | |||||
| Adjustable input source frequency lower/upper limit | |||||
| Additional analogue synchron sense circuit | |||||
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