Comparison of AC and DC charging methods
The main types of charging for electric vehicles (EVs) are alternating current (AC) and direct current (DC), which differ in terms of efficiency, speed, and impact on the grid. The following is a deta
automatic transfer switch is a PC class infrequent change-over switch,with two- station design (commonly used for A and standby for B), suitable for ACsystems with AC 50-60hz and rated current 6A-63A. The main function of theautomatic transfer switch is when the main power (common power supply A)fails, the ATS will automatically switch to the backup power (Backup powersupply B) to continue working (switching speed <50 miliseconds), which caneffectively solve the troubles caused by power outages.
| SQ8T | ||
| Case grade | 63 | |
| Rated operating current le(A) | 6A/10A/16A/20A/25A/32A/40A/50A/63A | |
| Rated insulation voltage UL | 690V | |
| Rated impulse withstand voltage Uimp | 8kv | |
| Rated working voltage Ue | AC200V/AC110V | |
| Rated frequency | 50/60Hz | |
| Class | PC class:can be switched on and loaded without generating short-circuit current | |
| Pole number | 2P | 4P |
| Rated short-circuit current lq | 50kA | |
| Short circuit protection device(fuse) | RT16-00-63A | |
| Rated impulse withstand voltage | 8kV | |
| Control circuit | Rated control voltage Us:AC220v,50Hz Normal working conditions:85%Us-110%Us | |
| Auxiliary circuit | AC220V/110V 50Hz Le=5A | |
| Contactor change-over time | <50ms | |
| Operation change-over time | <50ms | |
| Return change-over time | <50ms | |
| Power off time | <50ms | |
| Change-over operation time | <50ms | |
| Mechanical life | ≥8000tmes | |
| Electrical life | ≥1500tmes | |
| Usage category | AC-31B | |
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