The microprocessor-controlled static transfer switch constantly monitors the sources connected to the inputs; checks whether they remain within the current and frequency limits and decides if they are synchronized with each other. If the prioritized source is within the determined limits, critical load is transferred over to the prioritized source. If the prioritized source is not within the determined limits, load is then transferred to the other source which is within the determined limits.
Statıc Transfer Swıtch
Static Transfer Switch
- Thyristor based Static Transfer Switch
- Suitable with Synchronous and Asynchronous Transfer
- Selectable Asynchronous Transfer Enable \ Disable
- Synchronous Transfer Time: < 5 msec. ( ¼ cycle at 50 Hz)
- Asynchronous Transfer Time: < 11 msec.
- Over Temperature Protection
- Thermal Fuse Protection at Source Inputs
- Overvoltage Protection at Source Inputs
- Maintanance Bypass Switch protection
- 8 Dry Contacs
- 2×16 LCD Front Panel
- Selectable Source Priority via Front Panel
- Suitable with 3rd Input Source (Optional)
| STATIC TRANSFER SWITCH | |
|---|---|
| Topology | Thyristor controlled transfer switch |
| Nominal Voltage | 220/230/240 VAC 1 Phase 380/400/415 VAC 3 Phase |
| Nominal Frequency | 50Hz / 60 Hz |
| Overloading Capacity | |
| between 100% – 125% | 10 min. |
| between %125 – 150% | 5 sec. |
| Transfer Management | Make before break |
| Synchronous Transfer Time | < 5 msec. ( ¼ cycle at 50 Hz) |
| Asynchronous Transfer Time | < 11 msec. |
| Other Controlled Transfers | 0 msec. |
| Efficiency | >99% |
| Protection | Over temperature Protection, MCB Protection at Source Inputs , Overvoltage Protection at Source Inputs |
| Front Panel Indications and Warnings | Synchronization Failure (Light), Asynchronous Transfer Enabled (Light), Prioritized Source Preference (Light), Input Source Fault (Light and Sound), Over current (Light and Sound), Over temperature (Light and Sound), Thyristor Failure (Light and Sound) |
| Buttons | “Asynchronous Transfer Enable” Button, “Manual Transfer Enable” Button, “ Reset” Button, |
| SAFETY & ENVIRONMENT | |
|---|---|
| Protection Level / Color | IP 20 / RAL 7035 (Standard), (Higher IP rating and different colors are available, please consult) |
| Enclosure Material | Mild Steel, Zinc-phosphate coated; 100 µm electrostatic paint; 1.5 mm thickness |
| Cooling | Forced Fan (Standard) / Natural (OPTIONAL) |
| Cable Entry | Bottom (Standard) / Top (OPTIONAL) |
| Operating Temperature | -10 / +40 °C. (Higher operating temperatures are available, please consult) |
| Relative humidity | 5 – 90 % |
| Operating Altitude | Max. 1000 Mt. (Higher altitudes requires de-rating, please consult ) |
| Noise Level | Max. 60 db |
