Do you need to isolate your Uninterruptible Power Supply (UPS) system or inverter to ensure there is no disruption of power to the connected loads during maintenance or emergency service? AMETEK Solidstate Controls’ 3-position Remote Manual Bypass Switch (RMBS) allows you to completely isolate your systems.
The RMBS allows for your equipment to become volt free in order to perform maintenance or completely replace a faulty unit without jeopardizing the load circuits. The load is temporarily transferred from the inverter (UPS) onto the bypass (alternate) AC Power source. We utilize a “make-before-break” switch that is designed to transfer between two in-sync sources which enables a zero-break transfer in both directions. This design ensures there is no disruption of power to the connected load(s).
Switch Positions and Functions
- Normal – This position allows the UPS to feed the load circuits as if the RMBS wasn’t present.
- Bypass to Load – Transfers the system to the bypass source of power through the switch, not the UPS. The load is not protected by the UPS, but all the UPS functions can now be tested without risk to the load. This position is also referred to as the “test” position.
- Isolated Bypass – The load is connected directly to the bypass supply. This isolates the UPS cabinet from the bypass source and the load. If the AC input and the battery are also isolated externally then the UPS can be worked on safely (volt free). Maintenance can be performed on the UPS without affecting the load.
To see each switch position in use and learn more about properly shutting down our DPP UPS System with an external RMBS, view our blog and corresponding webinar on the topic.
Are you worried you don’t have enough space? Depending on your equipment alignment and space constraints, you may want to consider combining our isolation transformers with the RMBS to create an all-in-one consolidated unit (RMBS-T).
Integrating a Remote Manual Bypass Switch into your set up can increase your reliability, promotes safe work practices and can save potential downtime costs. If you’d like to learn more about the RMBS and RMBS-T, contact us.