POWER CONVERSION /DISTRIBUTION Precision Power Center TECHNICAL DATA MANUAL Three Phase 15-225 kVA 50 & 60 Hz Table of Contents NO-COMPROMISE POWER DISTRIBUTION AT LOWER INSTALLED COST . . . . . . . . . . . . . . . . . . . . . .1 LIEBERT PACKAGED POWER SYSTEM ADVANTAGES COMPARED TO CONVENTIONAL, BUILT-UP SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 CAPACITIES AND CONFIGURATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 STANDARD FEATURES FOR ALL SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Panelboards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 ADDITIONAL FEATURES FOR ALL SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 HARMONICS SOLUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 SYSTEM MONITORING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Power Monitor Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Remote Monitoring Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 PHYSICAL/ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 HEAT OUTPUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 SYSTEM SIZING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 SERVICE ACCESS AND CLEARANCE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Conventional built-up system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Liebert Precision Power Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Liebert Precision Power Center—Top Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Precision Power Center, 1-4 panelboards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Top Exit Precision Power Center, 1-2 panelboards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Precision Power Center diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Dimensions, clearances, 1 panelboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Dimensions, clearances, 2 panelboards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Dimensions, clearances, 3 panelboards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Dimensions, clearances, 4 panelboards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Dimensions, clearances, Top Exit unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Tables Table 1 Table 2 Table 3 Table 4 Table 5 Features available by model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical and mechanical characteristics, 60 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electrical and mechanical characteristics, 50 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Electrical and mechanical characteristics, Top Exit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Heat output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 i ii No-Compromise Power Distribution at Lower Installed Cost NO-COMPROMISE POWER DISTRIBUTION AT LOWER INSTALLED COST Liebert Precision Power Centers offer distribution, computer-grade grounding, and monitoring. Unlike conventional built-up systems, these Liebert packaged power systems provide easy low-cost installation, simple relocation, security, proven design and performance, electrical isolation, and effective noise suppression. Figure 1 Conventional built-up system Power Panels with Rigid Conduit Distribution Output Circuit Breaker 4-wire 208/120V REPO Input Circuit Breaker Isolation Transformer Figure 2 Liebert Precision Power Center Power Panels with Flexible Interconnecting Cables REPO Control J-Box Circuit Breaker Power J-Box Figure 3 Liebert Precision Power Center—Top Exit Top Exit Precision Power Center REPO Circuit Breaker 1 Liebert Packaged Power System Advantages Compared to Conventional, Built-Up Systems LIEBERT PACKAGED POWER SYSTEM ADVANTAGES COMPARED TO CONVENTIONAL, BUILT-UP SYSTEMS Desirable Features Conventional Built-Up Systems Liebert Packaged Power System No. Each site is a one-of-a-kind installation. “Design” depends on engineer and installer. Yes. Liebert power systems are complete, proven-design, factory tested to ensure consistent performance. Designed-in distribution flexibility accommodates all installation sites. Agency Approved Not as a system. Even though listed components may be used, site-fabricated distribution is subject to acceptance by local inspecting authorities. Yes. UL listing as a complete system is an assurance of safety. Factory Tested No. Testing of performance is done at the site, if at all. Yes. Factory testing the complete system ensures performance and safety of the system. Power Quality Improvement Doubtful. Because of the variables in design and installation, site-fabricated distribution does not consistently offer computer-grade power isolation or ground systems. Yes. Because packaged power systems have shielded isolation transformers close to the load, they offer power line noise attenuation and controlled grounding. Difficult. Since site-fabricated distribution seldom includes an isolation transformer in the computer room, a local single point ground system that minimizes common mode disturbances is difficult to establish. Yes. The packaged power system with isolation transformer automatically establishes a local single-point ground for the critical load. The power grounding point is the same as the computer system grounding point, minimizing common mode disturbances. Secure Distribution Possibly. Only if the entire distribution panel is dedicated to the computer and the panel is in the computer room. Yes. Power distribution panel is in the computer room. Access is limited to authorized personnel. Circuit Identification Possibly. Circuit number and receptacle references might be supplied, depending on the installing electrician and available information. Yes. Identification tags adjacent to each circuit breaker provide circuit identification and description of load served. Each cable is tagged with circuit number and cable length. Monitoring Seldom. Some add-on monitoring systems are available, but monitoring also depends on the installing electrician and available information. Yes. Built-in power parameter monitoring, alarm, and control capabilities are standard in packaged power systems. Ease of Installation No. All site-fabricated distribution wiring becomes part of premises wiring. Yes. A packaged system requires only a single connection to the premises wiring. Easy System Expansion No. Conduit installation and wire pulling is timeconsuming, and can hamper operations while in progress. Yes. New cable(s) can be routed quickly with minimal disruption. No. Site-fabricated distribution cannot be easily rearranged. Old conduit and wiring must be removed and new installed. Yes. Even after major equipment rearrangement, redistributing power from packaged systems becomes a simple matter of re-routing the flexible interconnecting cables. No. New distribution must be built at the new site and old conduit and wiring usually must be removed from the former site. Yes. The package is easily moved with the computer system to the new site. Proven System Design Computer-Grade Grounding Easy System Rearrangement Easy To Move 2 Capacities and Configurations CAPACITIES AND CONFIGURATIONS Liebert packaged power systems provide isolation, monitoring control, conditioning, and local single-point ground to ensure computer-grade power. With sizes ranging from 15 kVA to 225 kVA in a wide variety of configurations, the Liebert packaged distribution and conditioning systems can meet the requirements of almost any application. Figure 4 Precision Power Center, 1-4 panelboards 15-30 kVA, 1 panelboard 50-225 kVA, 4 panelboards 50-125 kVA, 2 panelboards 50-225 kVA, 3 panelboards 3 Capacities and Configurations Figure 5 Top Exit Precision Power Center, 1-2 panelboards 15-30 kVA, 1 panelboard Figure 6 50-225 kVA, 2 panelboards Precision Power Center diagram Shielded Isolation Transformer High Voltage J-Box Input Circuit Breaker Surge Arrester Low Voltage J-Box Spike Suppression Module Single Point Ground Monitoring and Control 4 Output Panelboard Main Circuit Breaker Output Panelboard Subfeed Output Breaker Local Display Remote Monitoring System Main Circuit Breaker Standard Features for All Systems STANDARD FEATURES FOR ALL SYSTEMS Shielded Isolation Transformer Temperature Sensors Input Circuit Breaker those applications where the manual restart function is provided elsewhere in the system. The low-voltage shunt trip circuit also allows system shutdown by external relays, Remote Emergency Power Off (REPO) switches, or other remote devices. A double-pole, double-throw (dpdt) building interface relay is powered by a 24 VDC supply from the output of the unit. Energized whenever the system is on, the relay drops out if the output voltage disappears. The relay can be used for remote alarming of system shutdown, or shutdown interface with additional loads such as environmental control units. Power conditioner system components are housed in a welded steel frame with removable panels for maximum accessibility to the interior. For safety and security, any panels that provide access to high voltage require a tool for removal. All Liebert distribution and conditioning systems incorporate standard features that ensure load protection and simplify maintenance. Precision Power Centers use quality, dry type, shielded isolation transformers for noise reduction up to 120 dB, with harmonic voltage distortion of 0.5 percent. Depending on kVA capacity, output impedance is between 3 and 5.5 percent, while fullload efficiency is between 96.5 and 98 percent. The transformer has temperature sensors in the windings to provide an alarm if internal temperature exceeds 180°C. It will shut down the system if internal temperature exceeds 200°C. Full Class H 220°C transformer insulation and all copper windings are used for long life and efficient operation. A main input circuit breaker provides either manual control, or automatic shutdown of the system in the event of an overcurrent condition. The breaker is sized for 125 percent of the system input full load amperes. In addition to manual and thermal-magnetic trip, the input breaker can be tripped by an electrically actuated shunt trip mechanism. As a standard feature, the shunt trip of the input circuit breaker is activated by the 200°C temperature sensor, local Emergency Power Off switch, and Manual Restart circuit. The local Emergency Power Off (EPO) switch is an illuminated push button, easily accessible for emergency shutdown, but fully guarded by a hinged cover to prevent accidental operation. The manual restart circuit shunt-trips the main input breaker whenever input power fails. This isolates the system from repetitive power applications during fault-clearing operations by the utility, and allows an orderly restart of the system when normal power returns. The manual restart circuit can be disabled by the manual restart select switch. The auto position of the switch defeats manual restart, and allows the conditioner to automatically restart when power returns. Auto restart is useful for unattended remote sites where the load can automatically restart, and in Panelboards One 42-pole panelboard is provided on 15 and 30 kVA Precision Power Centers. Two 42-pole panelboards (for a total of 84 poles) are provided on 50 through 125 kVA Precision Power Centers. Three 42-pole panelboards (for a total of 126 poles) are provided on 150 through 225 kVA Precision Power Centers. (The three-panelboard configuration is not available on Top Exit units.) Each panelboard is enclosed for safety and has individual isolated neutral and safety ground busbars. Each panelboard is protected by a main circuit breaker, which also allows manual shutdown of the entire panelboard without affecting the other panelboard(s). Output circuits are protected by single-, two-, or three-pole thermal-magnetic molded-case branch circuit breakers sized specifically for the load to be served. (Standard panelboards use plug-in breakers.) 5 Additional Features for All Systems ADDITIONAL FEATURES FOR ALL SYSTEMS Flexible Output Cables and Terminations Subfeed Output Circuit Breaker A flexible output cable system is available for Precision Power Centers. Insulated cable conductors are protected by jacketed, liquid-tight, flexible steel conduit with an integral copper shielding conductor. Each output cable is fabricated to the specified length and type of termination to match the equipment it will be connected to. “Add-on” UL listed cables for field installation are also available. Terminations include receptacles to match equipment plugs and conduit termination fittings with conductor pigtails for hard wire connection. A subfeed output circuit breaker, powered ahead of the output panelboards, is available on the Precision Power Center to feed a remote distribution unit, panelboards, or other loads. Multiple Subfeed Output Breakers are available upon request. High-Voltage Junction Box With Flexible Input Cable The high-voltage junction box can be installed under a raised floor system. The junction box contains terminals for connecting the incoming power line and ground conductors. A 10-foot (3 m) flexible cable is furnished for connection between the junction box and the power conditioning system. Additional Pole Capacity Additional panelboard pole capacity is available for all power distribution units. An additional 42-pole panelboard can be added to the Precision Power Center for a total of 84 poles. The Precision Power Center can have three 42-pole panelboards for a total of 126 poles. (The three-panelboard configuration is not available on Top Exit units.) For additional poles, distribution side sections can be added. Each side section provides another 42-pole panelboard. Low-Voltage Junction Box With Flexible Input Cable The low-voltage junction box can be installed under a raised floor. It contains terminals for connection of all building interface alarms or controls, and all Remote Emergency Power Off switches. A 10-foot (3-meter) flexible control cable for the system is furnished for connection between the junction box and the power conditioning system. Optional Panelboard Types Branch circuit panelboards that accept bolt-in circuit breakers are optional, as are panelboards for plug-in or bolt-in breakers manufactured by Square-D Company. Secondary Class Surge Arrester A secondary class surge arrester using high capacity utility-grade metal oxide resistors is wired to all three phases of the input power to shunt voltage surges to building ground. The arrester is rated for a maximum FOW spark-over of 3200 volts with maximum discharge voltage of 2.2 kV at 1500 amperes, assuming a standard 8 x 20 microsecond waveform. The surge arrester provides protection against high voltage surges that can cause insulation or wiring failures. 6 Additional Features for All Systems Spike Suppression Module Floor Pedestals The spike suppression module consists of AC filter capacitors and dynamic peak limiting devices with a response time of less than 1 nanosecond. Normal mode high frequency noise is attenuated, while high-speed, high-energy transients are limited to a safe level. In rooms without a raised floor, the floor pedestals provide space for the bottom entrance/exit of cables in Precision Power Center. The height of the floor pedestals is customer-specified. Standard floor pedestal height range is adjustable from 8.6 to 13.25 in. (218 to 336 mm). Other available ranges: 6 to 8.5 in. (152 to 216 mm), and 13.5 to 18 in. (343 to 457 mm). Non-raised floor applications for the Precision Power Center are not CSA approved. Transformerless System (Not Available on Top Exit Units) The Precision Power Center can be supplied without a transformer for use with separate power conditioning systems. If step-down and isolation are not necessary, transformerless systems provide the packaged power system advantages of security, distribution, monitoring, and upgrade flexibility. Transient Suppression Plate Remote Emergency Power Off (REPO) Switch The transient suppression plate is a one-squaremeter plate mounted to (and bonded to) the highvoltage junction box. It reduces the effects of transients on the ground system by providing a capacitive coupling to building steel. Pressing the REPO push button activates the shunt trip mechanism of the main input circuit breaker, shutting down the system. The illuminated and fully guarded REPO button is mounted in a wall box. The assembly includes 50 feet (15.2m) of 3-conductor cable for wiring to the unit. Additional lengths of cable are available. Table 1 Phase Rotation Meter The phase rotation meter is a hand-held instrument with clip-on leads for connecting to the circuit under test. The meter shows the circuit phase rotation in “ABC” or “BAC” sequence. The phase rotation meter can verify rotation sequence of any circuit up to 600 volts. Features available by model Panelboards Flexible Output Cables and Terminations Additional Pole Capacity Optional Panelboard Types Subfeed Output Circuit Breaker High-Voltage Junction Box with Flexible Input Cable Low-Voltage Junction Box with Flexible Input Cable Secondary Class Surge Arrester Spike Suppression Module Transformerless System Remote Emergency Power Off (REPO) Switch K-20 Transformer Multi-Winding Transformer Floor Pedestals Transient Suppression Plate PPC 15-30 kVA 42 poles standard (one 42-pole panelboard) Top Exit 15-30 kVA 42 poles standard (one 42-pole panelboard) PPC 50-125 kVA 84 poles standard (two 42-pole panelboards) Top Exit 50-150 kVA 84 poles standard (two 42-pole panelboards) PPC 150-225 kVA 126 poles standard (three 42-pole panelboards) Available Available Available Available Available Optional 84 poles Optional Optional 84 poles Optional Optional 126 poles Optional Not available Not available Optional 126 or 168 poles Optional Optional (up to 225 A) Optional 168 or 210 poles Optional Optional (up to 400 A) Standard Not available Standard Not available Standard Optional Not available Optional Not available Optional Optional Optional Optional Optional Optional Optional Optional Optional Not available Optional Optional Optional Not available Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional Not available Not available Optional Optional Optional Optional Optional Optional Not available Not available Optional Optional Optional Optional 7 Not available Harmonics Solutions HARMONICS SOLUTIONS Solutions to Harmonics Problems K-Factor Transformers Precision Power Centers are available with several harmonic solution options, along with the standard product features, to provide flexible power distribution for today’s nonlinear loads. The basic Precision Power Center is designed to accommodate moderate levels of harmonic currents. All Precision Power Center isolation transformers provide cancellation of the load triplen harmonic currents and are designed to tolerate neutral currents up to 1.73 times full load. When severe levels of harmonic currents are anticipated, several additional power center features are available. Shielded isolation transformers with a K-20 rating are specially designed to minimize the heating effects of the load’s harmonic currents and to tolerate full harmonic loading without overheating. Multi-Winding Transformers Shielded isolation transformers with multiple secondary windings that are phase shifted provide cancellation of the load’s non-triplen harmonic currents. Basic System With K-Factor Transformer With Multi-Winding Transformer Designed for nonlinear loads X X X Neutral sized for greater than 1.73X FLA X X X Available with multiple outputs for mainframe computers X X X Reduces harmonic current distortion X X X Improves harmonic power factor X X X Cancels triplen (3rd, 9th, 15th, etc.) harmonics X X X X X Features Comparison Tolerates higher levels of harmonic currents Cancels non-triplen (5th, 7th, etc.) harmonics X SYSTEM MONITORING Monitoring systems for Liebert power conditioners range from temperature sensing to multiple-parameter monitoring with remote display and printout. All units are equipped with a guarded and illuminated Local Emergency Power Off switch; provisions for connecting Remote Emergency Power Off switch; selectable auto or manual restart feature, to allow an orderly system restart after a power failure; a summary alarm contact; and a building interface relay. Power Monitor Panel True RMS techniques are used to provide accurate measurements of Precision Power Center operation, while the high visibility Liquid Crystal Display provides clear reporting. The microprocessor-based power monitoring system continuously monitors and sequentially displays the following parameters: • Input voltages, line-to-line for each phase • Output voltages, line-to-line and line-to-neutral for each phase • Output currents for each phase, including neutral and ground currents • Output voltage THD for each phase • Output current THD, K-factor and crest factor for each phase • Output power including kVA, KW, KW-hours, power factor, percent load and output frequency 8 System Monitoring The monitor panel also provides warning of out-ofspec conditions through audible alarm and displayed alarm messages. All alarmed conditions are retained in a non-volatile memory until reset. Alarm thresholds are adjustable, to meet individual site needs. Alarmed conditions include: • Output overvoltage • Output undervoltage • Output voltage THD • Output overcurrent • Neutral overcurrent • Ground overcurrent • Transformer overtemperature • Frequency deviation • Phase sequence error • Phase loss • Five customer-specified alarm conditions For additional application flexibility, the following alarms can be configured to shut down the Precision Power Center-output over/under voltage; phase sequence error; phase loss; ground overcurrent. Through a two-conductor communications cable, the system can communicate alarms and monitored conditions to a Liebert SiteScan central monitoring system. An isolated RS-232 ASCII communication port is provided for communication to other monitoring systems. Remote Monitoring Systems SiteScan SiteScan is an on-line center for monitoring and controlling all support systems in a large data processing installation. SiteScan provides early warning alarms and total site management data. A softwarebased system using a microcomputer as the central processing center, SiteScan is programmable, menudriven, and upgradeable. Basic Temperature Monitoring Panel Four primary site management programs are built into SiteScan: • Alarm functions provide instant warning of potential problems. A seven level selection of options for response to each alarm offers total flexibility in designing a custom-tailored alarm system. • Control functions allow critical setpoints and sensitivities to be adjusted by remote control for dynamic, single-point site management. Password access preserves site security. • Status functions provide complete information on all computer support systems, including realtime status of all monitored parameters and any alarm conditions. • History functions offer database management capabilities. These functions track, store and graphically display crucial data and trends for site management activities such as capacity analysis, growth predictions, and energy management. SiteScan makes full use of all features of its computer-based central processor, including RS-232 communications and other output ports and unlimited expansion via multiplexers. For critical data processing facilities, the SiteScan system offers total site management capability in a virtually obsolescence-proof configuration. The Transformer Overtemperature alarm indicator is a part of the 180°C transformer temperature sensing circuit. This configuration is optional on all units. 9 Physical/Electrical Data PHYSICAL/ELECTRICAL DATA Table 2 Electrical and mechanical characteristics, 60 Hz Size, kVA 15 kVA Input Volts 600V 480V 208V (without transformer) 208/120V 30 kVA 600V (with transformer) 480V 208V (without transformer) 208/120V 50 kVA 600V (with transformer) 480V 208V (without transformer) 208/120V 75 kVA 600V (with 480V transformer) 208V (without transformer) 208/120V 100 kVA 600V (with transformer) 480V 208V (without transformer) 208/120V 125 kVA 600V (with transformer) 480V 208V (without transformer) 208/120V 150 kVA 600V (with transformer) 480V 208V (without transformer) 208/120V 200 kVA 600V (with transformer) 480V 225 kVA 600V (with transformer) 480V (with transformer) Total Input Main Output Full Input Poles Load Circuit (Standard) Amps Breaker Dimensions WxDxH inches (mm) Output Volts Model Number Weight lbs (kg) 208/120V 208/120V 208/120V 208/120V PPB015C PPA015C PPC015C PRC015 550 (250) 550 (250) 550 (250) 300 (136) 42 42 42 42 15 19 43 42 20 25 60 60 20 x 32 x 68 (508 x 813 x 1727) 208/120V 208/120V 208/120V 208/120V PPB030C PPA030C PPC030C PRC030 700 (320) 700 (320) 700 (320) 300 (136) 42 42 42 42 30 38 87 83 40 50 110 110 20 x 32 x 68 (508 x 813 x 1727) 208/120V 208/120V 208/120V 208/120V PP8050C PPA050C PPC050C PRC050 850 (380) 850 (380) 850 (380) 400 (175) 84 84 84 84 50 63 145 139 70 80 200 175 32 x 32 x 68 (813 x 813 x 1727) 208/120V 208/120V 208/120V 208/120V PPB075C PPA075C PPC075C PRC075 1050 (470) 1050 (470) 1050 (470) 400 (175) 84 84 84 84 74 93 215 208 100 125 300 300 32 x 32 x 68 (813 x 813 x 1727) 208/120V 208/120V 208/120V 208/120V PPB100C PPA100C PPC100C PRC100 1275 (580) 1275 (580) 1275 (580) 450 (200) 84 84 84 84 99 124 286 277 125 175 400 350 32 x 32 x 68 (813 x 813 x 1727) 208/120V 208/120V 208/120V 208/120V PPB125C PPA125C PPC125C PRC125 1450 (660) 1450 (660) 1450 (660) 450 (200) 84 84 84 84 124 155 358 347 175 200 450 450 32 x 32 x 68 (813 x 813 x 1727) 208/120V 208/120V 208/120V 208/120V PPB150C PPA150C PPC150C PRC150 1750 (790) 1750 (790) 1750 (790) 700 (320) 126 126 126 126 148 185 427 416 200 250 600 600 44 x 32 x 68 (1118 x 813 x 1727) 208/120V 208/120V PPB200C PPA200C 2100 (950) 2100 (950) 126 126 197 247 250 350 44 x 32 x 68 (1118 x 813 x 1727) 208/120V 208/120V PPB225C PPA225C 2250 (1020) 2250 (1020) 126 126 222 278 300 350 44 x 32 x 68 (1118 x 813 x 1727) NOTES 1. All input and output ratings are three-phase. 2. Consult factory for voltages and applications not shown. 3. For extra panelboard option: 84 pole models are 32" (813 mm) wide; 126 pole models are 44" (1118 mm) wide; and 168 pole models are 62" (1575 mm) wide. Standard main input circuit breaker interrupting ratings are as follows. Other ratings available on request. Input OPD 208V 480V 600V Up to 250 Amps 300 to 600 Amps 65 kA 65 kA 35 kA 35 kA 22 kA 25 kA 10 Physical/Electrical Data Table 3 Electrical and mechanical characteristics, 50 Hz Input Volts Size, kVA 15kVA 415V 400V 380V 415/240V (without transformer) 380/220V 30 kVA 415V (with transformer) 400V 380V 415/240V (without transformer) 380/220V 50 kVA 415V (with transformer) 400V 380V 415/240V (without transformer) 380/220V 75 kVA 415V (with transformer) 400V 380V 415/240V (without transformer) 380/220V 100 kVA 415V (with transformer) 400V 380V 415/240V (without transformer) 380/220V 125 kVA 415V (with transformer) 400V 380V 415/240V (without transformer) 380/220V 150 kVA 415V (with transformer) 400V 380V 415/240V (without transformer) 380/220V 200 kVA 415V (with transformer) 400V 380V 225 kVA 415V (with transformer) 400V 380V (with transformer) Output Volts Model Number Weight lbs (kg) Total Input Main Output Full Input Poles Load Circuit (Standard) Amps Breaker Dimensions W x D xH inches (mm) 415/240V PPG015G 400/230V PPU015U 380/220V PPF015F 415/240V PRG015 380/220V PRF015 600 (275) 600 (275) 600 (275) 300 (136) 300 (136) 42 42 42 42 42 22 23 24 21 23 30 30 30 30 30 20 x 32 x 68 (508 x 813 x 1727) 415/240V PPG030G 400/230V PPU030U 380/220V PPF030F 415/240V PRG030 380/220V PRF030 775 (350) 775 (350) 775 (350) 300 (136) 300 (136) 42 42 42 42 42 43 45 47 42 46 60 60 60 60 60 20 x 32 x 68 (508 x 813 x 1727) 415/240V PPG050G 400/230V PPU050U 380/220V PPF050F 415/240V PRGO50 380/220V PRF050 925 (420) 925 (420) 925 (420) 400 (175) 400 (175) 84 84 84 84 84 72 75 79 70 76 100 100 100 90 100 32 x 32 x 68 (813 x 813 x 1727) 415/240V PPG075G 400/230V PPU075U 380/220V PPF075F 415/240V PRG075 380/220V PRF075 1150 (520) 1150 (520) 1150 (520) 400 (175) 400 (175) 84 84 84 84 84 108 112 117 104 114 150 150 150 150 150 32 x 32 x 68 (813 x 813 x 1727) 415/240V PPG100G 400/230V PPU100U 380/220V PPF100F 415/240V PRG100 280/220V PRF100 1400 (630) 1400 (630) 1400 (630) 450 (200) 450 (200) 84 84 84 84 84 143 149 157 139 152 200 200 200 175 200 32 x 32 x 68 (813 x 813 x 1727) 415/240V PPG125G 400/230V PPU125U 380/220V PPF125F 415/240V PRG125 380/220V PRF125 1575 (710) 1575 (710) 1575 (710) 450 (200) 450 (200) 84 84 84 84 84 179 186 196 174 190 225 250 250 225 250 32 x 32 x 68 (813 x 813 x 1727) 415/240V PPG150G 400/230V PPU150U 380/220V PPF150F 415/240V PRG150 380/220V PRF150 1900 (860) 1900 (860) 1900 (860) 700 (320) 700 (320) 126 126 126 126 126 214 223 234 209 228 300 300 300 300 300 44 x 32 x 68 (1118 x 813 x 1727) 415/240V PRG200G 400/230V PPU200U 380/220V PPF200F 2300 (1045) 2300 (1045) 2300 (1045) 126 126 126 285 297 312 400 400 400 44 x 32 x 68 (1118 x 813 x 1727) 415/240V PPG225G 400/230V PPU225U 380/220V PPF225F 2450 (1110) 2450 (1110) 2450 (1110) 126 126 126 321 334 351 450 450 450 44 x 32 x 68 (1118 x 813 x 1727) NOTES 1. All input and output ratings are three-phase. 2. Consult Factory for voltages and applications not shown. 3. For extra panelboard option: 84 pole models are 32" (813 mm) wide; 126 pole models are 44" (1118 mm) wide; and 168 pole models are 62" (1575 mm) wide. Standard main input circuit breaker interrupting ratings (rated symmetrical ultimate breaking capacity per IEC 947-2) are as follows. Other ratings available upon request. INPUT OPD 380-415V Up to 110 Amps 125 to 600 Amps 15 kA 25 kA 11 Heat Output Table 4 Electrical and mechanical characteristics, Top Exit Size, kVA 15 kVA 30 kVA 50 kVA 75 kVA 100 kVA 125 kVA 150 kVA 200 kVA 225 kVA Input Volts Output Volts Model Number Weight lbs (kg) Total Output Poles (Standard) 600V 480V 208V 600V 480V 208V 600V 480V 208V 600V 480V 208V 600V 480V 208V 600V 480V 208V 600V 480V 208V 600V 480V 600V 480V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V 208/120V PPB015C PPA015C PPC015C PPB030C PPA030C PPC030C PP8050C PPA050C PPC050C PPB075C PPA075C PPC075C PPB100C PPA100C PPC100C PPB125C PPA125C PPC125C PPB150C PPA150C PPC150C PPB200C PPA200C PPB225C PPA225C 600 (272) 600 (272) 600 (272) 750 (340) 750 (340) 750 (340) 900 (408) 900 (408) 900 (408) 1100 (499) 1100 (499) 1100 (499) 1325 (601) 1325 (601) 1325 (601) 1500 (680) 1500 (680) 1500 (680) 1750 (794) 1750 (794) 1750 (794) 2100 (958) 2100 (958) 2250 (1021) 2250 (1021) 42 42 42 42 42 42 84 84 84 84 84 84 84 84 84 84 84 84 84 84 84 84 84 84 84 Input Full Load Amps Main Input Circuit Breaker 15 19 43 30 38 87 50 63 145 74 93 215 99 124 286 124 155 358 148 185 427 197 247 222 278 20 25 60 40 50 110 70 80 200 100 125 300 125 175 400 175 200 450 200 250 600 250 350 200 250 Dimensions WxDxH inches (mm) 32 x 32 x 68 (813 x 813 x 1727) 32 x 32 x 68 (813 x 813 x 1727) 44 x 32 x 68 (1118 x 813 x 1727) 44 x 32 x 68 (1118 x 813 x 1727) 44 x 32 x 68 (1118 x 813 x 1727) 44 x 32 x 68 (1118 x 813 x 1727) 44 x 32 x 68 (1118 x 813 x 1727) 44 x 32 x 68 (1118 x 813 x 1727) 44 x 32 x 68 (1118 x 813 x 1727) NOTES 1. All input and output ratings are three-phase. 2. Consult factory for voltages and applications not shown. 3. For extra panelboard option: 84 pole models are 44" (1118 mm) wide; and 126 pole models are 62" (1575 mm) wide. Standard main input circuit breaker interrupting ratings are as follows. Other ratings available on request. Input OPD 208V 480V 600V Up to 250 Amps 300 to 600 Amps 65 kA 65 kA 35 kA 35 kA 22 kA 25 kA HEAT OUTPUT Table 5 Heat output kVA 1/2 Load BTU/hr (kW) 3/4 Load BTU/hr (kW) Full Load BTU/hr (kW) 15 30 50 75 100 125 150 1300 (.38) 2200 (.64) 3100 (.91) 4100 (1.20) 5050 (1.48) 5800 (1.70) 6300 (1.85) 1900 (.57) 3400 (1.00) 4650 (1.36) 6150 (1.80) 7700 (2.26) 8700 (2.55) 9400 (2.75) 2500 (.73) 4600 (1.35) 6200 (1.82) 8150 (2.39) 9900 (2.90) 11500 (3.37) 12500 (3.66) 200 225 7700 (2.26) 7800 (2.29) 11500 (3.37) 11800 (3.46) 15500 (4.54) 15800 (4.63) Environmental Characteristics Temperature, operating: Temperature, storage: Relative humidity: 0°C to +40°C 55°C to + 85°C 0% to 95% (non-condensing) 12 System Sizing SYSTEM SIZING Sizing a power center to meet present and future needs is a fundamental requirement. Growth Requirements The power center should be sized to anticipate growth. Growth rates associated with data processing centers double power requirements in a short time. Therefore it is reasonable to size the system for twice the present kVA load. Even in a minimum growth environment, the power center should be sized for 125% of the estimated kVA load. Present Requirements Estimating the present system size in kilovolt amperes (kVA) is done in a number of ways. Typical sources include computer site planning manuals, equipment nameplate data, and electrical service data. kVA requirements are estimated using any of the following formulas: V = volts pf = power factor A = amperes • = “multiplied by” Special Load Characteristics For special load characteristics, factory application engineers should be consulted for recommended system sizing. kVA = kilovolt-amperes BTU/hr = British Thermal Units per hour (heat output) kW = kilowatts System Grounding Considerations The grounding of any power conditioning system is critical to its performance. The National Electrical Code provides for a safe electrical system. The ground path required by the NEC for safety should be enhanced or improved for system performance, never defeated or eliminated. For detailed system grounding considerations, refer to the Precision Power Center Installation Operation and Mainenance Manual. Kcal/hr = kilocalories per hour (heat output) 1. Power profile of equipment. (This is the most reliable base from which to estimate present kVA loading.) For three-phase systems: ⋅---A 1.73 ------⋅---(-------) kVA = V 1000 --------⋅---1000 -----A = kVA V ⋅ ( 1.73 ) For single-phase equipment: V--⋅---A kVA = 1000 --------⋅---1000 -----A = kVA V 2. Kilowatts (kW) and Power Factor (pf). ---kVA = kW pf (If pf is not given, assume 0.8.) 3. Ampere specifications for the electrical service feeding the site: ⋅---A 1.73 ------⋅---(-------) kVA = V 1000 (for three-phase systems) 4. BTU/hr or Kcal/hr specifications: (-hr --------⁄------) kW = BTU 3413 kcal ⁄ ( hr ) = --------------860 ---kVA = kW pf (If pf is not known, assume 0.8.) After the present kVA requirement has been determined, the anticipated growth and the special characteristics of the load must be considered. 13 Service Access and Clearance Requirements SERVICE ACCESS AND CLEARANCE REQUIREMENTS Precision Power Centers are designed for easy servicing. Access areas and minimum clearances of each are described below. Figure 8 18" * (457mm) Recommended minimum service clearances for Precision Power Centers should be at the front and one other side, or rear. Service clearance extends 42 in. (1067 mm) from the unit in accordance with the National Electrical Code. If bottom cable exit is desired, there must be at least 6" (143 mm) clearance at the bottom of the unit. (NOTE: If bottom cable exit or distribution cables are used, the unit must be installed on a raised floor or floor pedestals must be provided. Non-raised floor applications are not CSA approved.) Units with a transformer require 18" (427 mm) above the unit for cooling airflow. 68" (1727mm) Dimensions, clearances, 1 panelboard 20" (507mm) 32" (813mm) 32" (813mm) 32" (813mm) Precision Power Center - 15-225 kVA sizes Figure 7 Dimensions, clearances, 2 panelboards 18" * (457mm) 42" ** (1067 mm) 68" (1727mm) * 16For units with transformer ** Required in front of unit plus on one other side or in back *** For bottom cable exit 6" *** (152mm) 42" ** (1067mm) 14 6" *** (152 mm) Service Access and Clearance Requirements Figure 9 Dimensions, clearances, 3 panelboards 18" (457mm) For units with transformer 44" (1118mm) 32" (813mm) 68" (1727 mm) 42" (1067 mm) Required in front of unit plus on one other side or in back 15 6" (152mm) For bottom cable exit Service Access and Clearance Requirements Figure 10 Dimensions, clearances, 4 panelboards 62" (1575mm) 18" (457mm) For units with transformer Note: Units are 32" (813mm) deep 68" (1727 mm) 42" (1067 mm) Required in front of unit plus on one other side or in back 16 6" (152mm) For bottom cable exit Service Access and Clearance Requirements Figure 11 Dimensions, clearances, Top Exit unit 44" (1118mm) for 2 panelboards or 32" (813mm) for 1 panelboard 32" (813mm) 68" (1727 mm) 42" (1067 mm) Required in front of unit plus on one other side or in back 17 Allow 36" (914 mm) minimum clearance on both sides or in rear for cooling air flow Service Access and Clearance Requirements 18 POWER CONVERSION /DISTRIBUTION Precision Power Center TECHNICAL DATA MANUAL The Company Behind the Products Technical Support With over a million installations around the globe, Liebert is the world leader in computer protection systems. Since its founding in 1965, Liebert has developed a complete range of support and protection systems for sensitive electronics: United States 1050 Dearborn Drive P.O. Box 29186 Columbus, OH 43229 • • • • • Environmental systems—close-control air conditioning from 1 to 60 tons Power conditioning and UPS with power ranges from 300 VA to more than 1000 kVA Integrated systems that provide both environmental and power protection in a single, flexible package Monitoring and control—from systems of any size or location, on-site or remote Service and support through more than 100 service centers around the world and a 24/7 Customer Response Center While every precaution has been taken to ensure the accuracy and completeness of this literature, Liebert Corporation assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions. © 2002 Liebert Corporation All rights reserved throughout the world. Specifications subject to change without notice. ® Liebert and the Liebert logo are registered trademarks of Liebert Corporation. All names referred to are trademarks or registered trademarks of their respective owners. SL-20045 (6/02) Single-Phase UPS 800-222-5877 Outside the United States 614-841-6598 3-Phase UPS 800-543-2378 Environmental Control 800-543-2778 Italy Via Leonardo Da Vinci 8 Zona Industriale Tognana 35028 Piove Di Sacco (PD) +39 049 9719 111 FAX: +39 049 5841 257 Asia 23F, Allied Kajima Bldg. 138 Gloucester Road Wanchai Hong Kong +852 2 572 2201 FAX: +852 2 831 0114 Web Site www.liebert.com