Redundant Multiple 4000 AMP, 480-volt electrical transformers power the San Diego colocation facilities.
Our systems provide automatic switching between two independent transformers located on the data center property. The Lightwave San Diego Colocation Facility (LWDC) has a total of 13 megawatts of power. San Diego Gas & Electric (SDG&E) brings to the property (2) 12,000 Volt, 60 Hertz services, each feed originates from a separate SDG&E substations. The primary feed is served from the Kearny Mesa station, and the alternate feed is served from the GD overland substation. The incoming 12kV feeder is terminated in a medium voltage Switchgear that feeds (3) 2,500/3,333 kVA fan cooled unit-substations. At this point, the voltage is stepped down and distributed throughout the San Diego colocation facility at 480/277 - volts, 3-Phase, 4 wire. The normal power electrical distribution equipment is located in the basement of the electrical room.
The Lightwave San Diego colocation facility is supported by a large Teledyne Uninterruptible Power Supply (UPS) system, fully capable of supporting all mission critical hardware. The UPS consists of (3) 500KVA modules which are connected together in a parallel configuration, with an N+1 topology designed to share the load. The power source to the San Diego colocation facility is protected from interruption by switchgear which will interrupt the utility source, should the utility voltage deviate from tightly controlled parameters. All power for the raised floor computer systems is routed through the UPS, therefore, the hardware is fully protected from short or long term power anomalies that may occur. The Lightwave San Diego colocation facility also has two 1.5 Megawatt redundant diesel generators with 10,000 gallons of fuel, which provide backup power for the LWDC facility. The Lightwave San Diego colocation facility also has an on site back up Power Generation System, which consists of stand by diesel engine generators, fuel oil storage systems, state-of-the-art Schweitzer Engineering Laboratories (SEL) Generator Parallel Controls and Distribution Switchgear. These are (2) 1,500kW, 480-volt, 60 Hz diesel engine generator sets installed in sound attenuated weatherproof enclosures. The generators are connected in a parallel configuration to provide redundant standby generation to support critical loads at the Lightwave San Diego colocation facility.
The San Diego colocation Tech Center has 3.3 megawatts of available power, with a fully redundant 2 megawatt paralyzing UPS system and redundant Master and Emergency System Busses (MSB/ESB). A 2 megawatt diesel generator system with 3,500 gallons of fuel provides backup power for this San Diego colocation facility. The Tech Center colocation facility also houses a fully redundant 2,400 AMP, 48V, positive ground DC Telco power plant and distribution system. This system currently powers all fiber providers as well as carriers. DC electrical can be installed in customer cabinets, as well as cages, as necessary for customer demand.
UPS power to the San Diego colocation Tech Center is fed into redundant Power Distribution Units and from there into Remote Power Panels (RPP). Each RPP is monitored to the circuit breaker level to ensure early warning overload protection.