LayerZero eSTS Static Transfer Switches: The Ultimate Solution for Critical Power Protection

The LayerZero eSTS is a static transfer switch that can transfer power between two or three input power sources without interrupting the critical load. It is designed to protect mission-critical applications and is the last line of defense against power outages. The eSTS constantly monitors the power quality and, if a source goes out of specification, it automatically transfers from the preferred source to the secondary source.

The eSTS requires no moving parts and utilizes Silicon Controlled Rectifiers (SCRs) to transfer between sources. Transfers are very fast, taking less than 1/4 of an electrical cycle.

The LayerZero eSTS is designed for maximum operator safety. It uses a sectionalized design, with the power quality monitoring and SCRs housed in a cabinet adjacent to the circuit breakers and customer cable connections. This compartment design allows the equipment to be safely operated and serviced.

In normal operation, the inner dead-front doors remain closed. A mechanical interlock is built into the door, which permits safe operation of the bypass procedure by eliminating human error. A polycarbonate window allows for status LEDs in the control section to be safely viewed with the door closed. INSIGHT IR® cameras (optional) or IR Ports (standard) provide the ability to monitor the temperatures of critical connections with the doors safely closed.

The LayerZero eSTS is designed to be front-accessible, with all input/output terminals located at the front and bottom of the unit. This eliminates the need for operators to access difficult-to-reach locations, improving operator safety and maintainability.

The buswork of LayerZero eSTS systems is epoxy coated for additional operator safety and connections are silver plated for reliability. Internal connections are permanently brazed and are maintenance-free.

The LayerZero eSTS Static Transfer Switch is designed with internal redundancy. Every logical machine segment of the eSTS is powered with triple redundant power supplies. Control communications utilize fiber optic signals to eliminate the risk of signal interference and to maximize system reliability.

The eSTS is equipped standard with Single Module Redundancy (SMR), a cost-effective topology that provides redundant power paths to mission-critical equipment. In SMR systems, sources each have built-in triple redundancy of processors, and every phase is controlled with a separate gate drive board. LayerZero's SMR topology is unique in that it is fail-safe, maintaining full switching functionality even if a critical board were to fail.

For applications where reliability simply cannot be compromised, eSTS offers Triple Modular Redundant (TMR) architecture. This architecture ensures that a failure of any component on any system control board will not compromise the critical load. With appropriate and timely service and maintenance, an eSTS TMR system will maintain virtually 100% probability of mission success.

The LayerZero eSTS eliminates downstream inrush by incorporating a patented “Dynamic Phase Compensation” algorithm that intelligently introduces an appropriate time delay at the instant of transfer. This algorithm takes into account the phase angle of the incoming power and the phase angle of the load, and it calculates the optimal time delay to minimize inrush current.

The LayerZero ITIC Plotting tool is a graphical tool that helps users to audit the quality of transfers. The tool plots the voltage and current waveforms of the transfer, and it provides a visual indication of the inrush current. The tool also calculates the transfer time and compares it to the limits of the ITIC curve parameters.

The ITIC curve is a standard curve that defines the limits of acceptable transfer times. The ITIC curve is based on the results of research that has been conducted on the effects of inrush current on transformers and other electrical equipment.

By incorporating Dynamic Phase Compensation and providing the ITIC Plotting tool, LayerZero helps to ensure that eSTS systems can safely and reliably transfer power between two or more input sources. This helps to protect mission-critical applications from power outages and other disruptions.

Every LayerZero eSTS is equipped with an advanced Power Quality Monitoring (PQM) system that provides local and remote access to critical data using non-proprietary protocols. The PQM system includes basic monitoring, alarms, waveform capture, and ITIC plotting capabilities. The ITIC Plotting utility is used to audit the quality of transfers. In addition, systems can be configured to automatically email users waveform captures as an attachment. This ensures that users are always aware of any potential problems and can take corrective action before they cause downtime.

Real-time waveform capture is a powerful feature that allows users to see exactly what is happening with the power grid in real time. This information can be used to identify and troubleshoot problems quickly and efficiently.

All LayerZero® products are compatible with INSIGHT IR® cameras. INSIGHT IR® is a thermal monitoring system that continuously monitors the temperatures of critical components. INSIGHT IR® captures data from a network of fixed infrared cameras and continuously looks for abnormal changes in thermal conditions. When a problematic connection is detected early, repairs can be made on equipment before the problem leads to downtime.

The combination of PQM (Power Quality Monitoring) and INSIGHT IR® technology provides comprehensive monitoring and protection for LayerZero® eSTS systems. This ensures that mission-critical applications are always protected from power outages and other disruptions.

LayerZero Power Systems eSTS Static Transfer Switches are seismically certified to meet the AC-156 standards. This means that they can withstand earthquakes and continue to function properly. The equipment is tested on a tri-axial shake table to simulate the shaking that occurs during an earthquake. The shake table is subjected to simulated seismic events that are designed to match the SDS (Seismic Demand Spectrum) for the area where the equipment will be used. The equipment is monitored during the testing to ensure that it does not suffer any damage.

Seismic certification is important for facilities that are located in earthquake-prone areas. This includes hospitals, airports, and other essential facilities. Seismic certification helps to ensure that these facilities will be able to continue to operate during an earthquake.

If you are planning to build or renovate a facility in an earthquake-prone area, contact a seismic engineer to discuss seismic certification. LayerZero can work with seismic engineers to develop a plan to mitigate the risk of earthquakes.

LayerZero Power Systems' eSTS Static Transfer Switches are designed to be extremely reliable. The company has been designing and building Static Transfer Switches since 2001, and the eSTS is the latest and most advanced model.

The eSTS is designed, fabricated, and tested in our Aurora, Ohio manufacturing facilities. This ensures that LayerZero has complete control over the quality of the product. The company also has an in-house development team that is constantly working to improve the eSTS.

As a result of its commitment to quality and innovation, LayerZero has a proven track record of reliability. The eSTS has been used in a variety of applications, including data centers, telecommunications, healthcare, manufacturing, education, and government.

In fact, the eSTS has been so reliable that it has been used in some of the world's most demanding environments. For example, the eSTS is used in data centers that are located in earthquake-prone areas.

If you are looking for a reliable and innovative STS solution, the LayerZero eSTS is the perfect choice. The eSTS has a proven history of reliability, and it is backed by LayerZero's commitment to quality and innovation.