Bypass Isolation Automatic Transfer Switch

The Bypass Isolation Automatic Transfer Switch (ATS) integrates a dual-source automatic transfer mechanism with an isolated mechanical bypass switch. This configuration isolates the automatic controller and switch contacts from the load circuit, permitting inspection, testing, and component replacement under full load without power interruption. 

Zero-Interruption Bypass Isolation: Allows mechanical isolation of the ATS power section while feeding the load directly from either utility or generator via the bypass switch.

Interlocked Mechanical Design: Positively prevents parallel connection of normal and emergency sources during manual bypass operation through a physical cam-and-lever interlock.

Microprocessor-Based Controller: Programmable setpoints for voltage pickup/dropout, frequency thresholds, engine start/stop time delays, and exercise timers with integrated event logging.

Isolating Disconnect Plugs: Automatic disconnect of control wiring between the ATS power section and the enclosure door/cabinet upon swing-out or extraction, eliminating hazardous dangling wires.

External Manual Operator: Enables manual transfer under dead-front safety conditions without opening the main enclosure door.

Data Centers: Ensures continuous power distribution to server racks during routine preventative maintenance of primary switching units.

Healthcare Facilities: Meets critical life-safety power continuity requirements in hospitals and surgical centers where unscheduled outages are intolerable.

Telecommunications: Secures uninterrupted uptime for cellular switching stations and remote broadcast towers.

Continuous Industrial Processes: Prevents costly production line shutdowns in chemical plants and semiconductor manufacturing facilities during switchgear servicing.

Busbar Material: Options for 99.9% purity electrolytic copper (tin or silver-plated) or high-conductivity aluminum busbars.

Communication Protocols: Integration modules for Modbus RTU, Modbus TCP/IP, BACnet MS/TP, or SNMP for integration into facility SCADA or BMS networks.

Enclosure Modifications: Custom dimensions, seismic-rated bracing (IBC 2018 / ASCE 7), internal space heaters, and customized conduit entry plates.

Auxiliary Contacts: Factory-installed dry contacts for source status indication, position tracking, and external alarm triggers.

Sheet Metal Processing: Enclosures are fabricated using CNC laser cutting and automated multi-axis bending presses to maintain dimensional tolerances within plus or minus 0.1 mm.

Busbar Fabrication: Automated CNC punching and bending machines shape high-conductivity copper bars, followed by precision torque-controlled assembly.

Dielectric Testing: Every assembled unit undergoes a high-potential (Hi-Pot) dielectric withstand test at (2 x Rated Voltage + 1000V) for 1 minute.

Functional Load Simulation: Automated test benches inject live voltage signals to verify controller logic, pickup/dropout thresholds, transfer timing, and mechanical interlock integrity under simulated power failure cycles.

Certifications: UL 1008 Listed, IEC 60947-6-1 Certified, CE Marked, ISO 9001 Quality Management System certified manufacturing facility.

Documentation Package Provided:

Electrical schematic drawings and dimensional general arrangement (GA) CAD files.

Factory Acceptance Test (FAT) reports specific to the serial number.

Installation, operation, and maintenance (IOM) manuals.

Component bill of materials (BOM) and recommended spare parts lists.

Export Packaging: Sealed in heavy-duty wooden crates compliant with ISPM 15 heat-treatment standards, lined with moisture-barrier VCI (Volatile Corrosion Inhibitor) film and silica gel desiccants.

Lifting & Handling: Base skids equipped with integrated forklift pockets and lifting lugs designed for overhead rigging without damaging cabinet structures.

Lead Time: Standard configurations ship within 4 to 6 weeks; engineered-to-order projects require 8 to 12 weeks depending on enclosure and metering specifications.