External Manual Operators, a summary
An EMO provides a simple means for manual operation capability. EMOs are necessary when the Automatic Transfer System fails, or when completing ATS inspections. As noted above, external operation ensures the enclosure door remains closed. This means safer operation and protection from arc flash injury, no need for additional safety protocols and training, and less downtime in facilities.
Russelectric EMO
The Russelectric EMO utilizes the same Russelectric transfer mechanism as the automatic electrical operator. The instantaneous engagement of the open-center position mechanism ensures fast switching regardless of the speed and force of the action of the human operator. This feature enables manual transfers of power to be fast, easy (without special, additional procedures), safe, and consistent.
Conclusion
Automatic Transfer Systems are critically important components of facility infrastructure. Under normal operation, they are fast, safe, and reliable means of keeping facilities running smoothly. When designed and built with quality in mind, they are robust and resilient to corrosion. Safety and operational features such as the Russelectric EMO offer an additional layer of reliability for fast, easy, and safe manual operation when necessary.