Powerlink Corporation; Customized power quality solutions


		UPS Systems Uninterruptible Power Supply (UPS) systems protect computers and other sensitive electronic loads from power outages and other power anomalies. PowerLink offers UPS systems in a wide variety of sizes and configurations to provide you with the optimal solution for your specific needs. • Single-phase UPS systems are typically used to support standalone PCs, networked PCs, and servers. Sizes range from 300 VA to 12 KVA. • Three-phase UPS systems support multiple servers, computer rooms, and other large mission-critical applications. Sizes range from 10 KVA to 4,000 KVA.

		Single-Phase UPS Systems Single-phase UPS systems are available in three topologies to meet varying price/performance requirements: • Off-line (inverter normally off-line) —the least amount of power protection at the most economical price. • Line interactive (inverter normally off-line) — the industry's most common single-phase UPS topology offers active voltage regulation and filtering. • On-line double conversion (inverter normally on-line) — the highest level of power protection for the most critical applications. Single-phase UPS systems are available in both rack-mount and tower configurations. The lower power ratings (up to 3000 VA) are configured with line cord input, and multiple-receptacle output. The higher power ratings (above 3000 VA) have a hardwire input and output. Standard battery run times are typically in the 5-10 minute range (at full load), but extended battery options are also available. Monitoring software is included with all single-phase UPS systems and allows the user to monitor UPS status over a network using SNMP protocol. For more information, visit the MGE UPS Systems Web site.

		Three-Phase UPS Systems PowerLink’s three-phase product offerings employ a true on-line double conversion topology and the industry's most advanced inverter technology — IGBT pulse width modulated (PWM) with Digital Power Quality logic. Since the inverter generates 100% of the output power, this design provides complete isolation to the critical load from the dangers of raw utility power. Even when exposed to wide variations in input power quality (voltage, frequency, and distortion), the topology is robust and versatile enough to continue providing regulated output power to the load. Key features and benefits include: • Extremely high system efficiencies at all load levels for operating cost savings • Support for 100% non-linear loads without derating • Industry low output THD • Power factor corrected input or input harmonic filters to minimize reflected harmonics into the power source • Internal (or optional external) maintenance bypass switch • Integrated battery monitoring and self-diagnostics for maximum battery life • Network-based monitoring software solutions • Generator-friendly technology (minimal generator oversizing) • Industry-leading small footprints • Redundant solutions: Shared Parallel, Isolated Redundant, or Distributed Redundant For more information, visit the MGE UPS Systems Web site.

		Emergency Lighting Systems Available in power ratings from 1.5 KW to 18 KW, Emergency Lighting Systems are similar to conventional UPS systems. However, because they must meet the UL 924 standard as "Life Safety Equipment," they adhere to very stringent construction and performance requirements. Typical applications include emergency and path of egress lighting, HID and high-pressure sodium lighting, and control and security systems. Key features include: • UL 924 listed for Emergency Lighting Systems • Standard 90-minute battery • Extended battery run times available • MTBF of 100,000 – 200,000 hours • No-break seamless transfer to battery upon outage • Sine wave output • Minimum 90% efficiency rating Please contact PowerLink for additional information.

		Micro Turbines PowerLink’s Micro Turbine offering represents a new direction in power quality, reliability, and energy management. The ability to generate power on-site using proven, cost-effective, and energy-efficient technology enables our customers to take control of their electrical power systems while saving thousands of dollars in annual energy and operating costs. The Micro Turbine couples a turbine engine, spinning on a patented air bearing to generate high-frequency power, with digital power controls to deliver clean, reliable electricity where it is needed. It can be utilized in a multitude of ways including stand-by power, capacity addition, peak shaving, and cogeneration (the exhaust can be used for a variety of heating applications). When coupled with a three-phase UPS system, Micro Turbines can even be used to supplement the batteries to provide unlimited run times. Key features and benefits include: • Scalability – network modules together to add capacity or redundancy as power usage or criticality increases • Serviceability – much lower service and maintenance costs than reciprocating engines. • Environmentally friendly – emissions are extremely low, with EPA approval for operation 7 x 24 x 365. • Variety of fuel sources – runs on natural gas, liquid propane, diesel 2, bio-gas, methane gas, flare gas, etc. • Currently available in 30 KW and 60 KW modules For more information, visit the Capstone Micro Turbine Web site.

		TVSS (Transient Voltage Surge Suppression) Systems PowerLink offers a wide array of TVSS solutions to protect sensitive electrical and electronic equipment from damaging electrical transients, high-frequency noise, and high-energy disturbances. These offerings range from compact, cost-effective TVSS designed to protect low-exposure applications, to extremely robust industrial-grade TVSS systems that protect large ampacity service entrance and other high-exposure applications. All products are built and tested to exceed internationally recognized standards and employ patented fusing technology for unmatched reliability and performance. Key features and benefits include: • Solutions for service entrance, branch panel, and equipment level requirements • MOV-based TVSS for low- and medium-exposure applications • Selenium-enhanced TVSS for high-exposure applications • All products parallel connected for ease of installation and retrofit • Surge current capacities from 60,000 to 300,000 amps • Protection in all electrical modes (L-N, L-G, L-L, N-G) • Individually fused MOVs for uninterrupted operation • Failure-Free Integrated Suppression Bus (ISB) eliminates PCB trace failures and enhances MOV current sharing • Solid copper bus construction • Integral disconnects available • MasterMIND local and remote diagnostic monitoring • Electronic grade panelboard extensions • Open-frame models for integration into electrical switchboards • All products manufactured to ANSI/IEEE standard C62.41 • MasterPLAN facility-wide protection • 7- and 10-year product warranties For more information, visit the Current Technology Web site.

		Harmonic Cancellation Transformers These unique transformers are used in place of isolation and k-rated transformers to cancel the 3rd, 5th, 7th, 9th and other harmonic currents in harmonic-rich environments such as data centers, commercial buildings, and manufacturing plants. These transformers incorporate zero sequence impedance and phase shifting techniques to eliminate harmonics and their harmful effects. If not treated, harmonics can cause overheating of transformers and conductors, and even malfunctions of electronic equipment. Harmonic cancellation transformers have other significant benefits, including electrical noise reduction and superior efficiencies (versus standard k-rated transformers). Key features and benefits include: • Available in sizes ranging from 15 to 750 KVA • Wide range of models/configurations including dual output • Very fast ROI on initial equipment cost • Energy-efficient design (98%+) provides lifetime of energy and cost savings • Clean voltage waveforms • Reduced annual greenhouse gas emissions • Energy Star compliant • TVSS optional for additional protection • Performance validated by U.S. DOE test lab • Facilitates system-wide compliance with IEEE-519 For more information, visit the Harmonics Limited Web site.

		Power Conditioners Available in both single-phase (140 VA to 25 KVA) and three-phase (10 – 300 KVA) configurations, power conditioners protect critical electronic loads with voltage regulation, electrical isolation, surge protection, and in some cases, power ride-through. An electronic zero-current tap-switching topology makes these devices an excellent solution for medical equipment, process control systems, and robotics. Key features and benefits include: • Excellent power protection solution when extended ride-through not required • Lower cost per KVA than UPS systems • UL 544-listed for medical applications • Floor or wall/panel mounted industrial models • Minimal installation and maintenance costs For more information, visit the MGE UPS Systems Web site.