STS (Static Transfer Switch) is mainly used in scenarios of on/off-grid switching. When the grid quality is weak or critical load is not allowed to shut down, STS can help the system quickly complete the corresponding seamless switching. Usually there is no delay in planned switching, while unplanned switching will be completed within 20 ms.
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PRODUCT FEATURES
01
ms level seamless switching.
02
Provides assurance for system reliability through frequency/voltage polling monitoring.
03
The PLL (phase-locked loop) ensures smooth entry/exit of the system.
04
After detecting grid failure, STS can provide isolation protection for the system.
PRODUCT TOPOLOGY
| Model | INPSTS-200/0.4-0S | INPSTS-300/0.4-0S |
| Rated Voltage | 400Vac | |
| Rated Power | 200kVA | 300kVA |
| Rated current(A) | 288A | 433A |
| Switching duration | <20ms | |
| Weight | 15kg | |
| Protection level | IP20 | |
| Dimensions(W*D*H)mm | W440xD370xH200 | |
| Primary interface | grid side interface:A/B/C; PCS and load AC side interface:U//W | |
| Secondary interface | A/B/Ccurentsampling,CT ratio 500:1A; Thyristor trigger signal(TR); Temperature feedback signals(NTCi.NTC2). temperature switch signals(OT+,OT -); 24Vpowersupply(24VGND;24V2、GND); Malfunction Lamp Control(ERR) | |
| Certification | EN/IEC 61000-6-1/2/3/4 EN/IEC 61439-1/-2 | |
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