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The diagram in Figure 2 shows a static bypass switch connected across a UPS. The UPS. could be a double conversion or a delta conversion or rotary type. The static bypass switch. provides a means to accomplish high-speed transfer to the bypass path in case of UPS.
What is a Manual Hard Bypass Switch and why are they necessary?UPS installations often include a manual wrap-around hard bypass switch, also referred to as maintenance bypass switch, or MBS. The manual bypass switch allows the UPS to be de-energized without interrupting power to the critical load. The manual bypass switch provides a safe easy means for a trained service technician to perform routine maintenance, inspections and repairs to the UPS.