CSI SECTION 16611 STATIC UNINTERRUPTIBLE SYSTEM/POWER DISTRIBUTION
Eaton Data Centre Power System using BladeUPS 12kW to 60kW (N+1) UPS
GUIDE SPECIFICATIONS FOR
12kW-60kW (N+1) UPS & Power Distribution System (400V)
This specification describes the operation and functionality of a continuous duty, three-phase, solid-state, static Uninterruptible Power Supply (UPS) hereafter referred to as the UPS. All UPS systems shall be capable of being deployed in an N+1 redundant, scalable architecture. This UPS can be initially deployed as a single stand-alone (SA) UPS or installed with other like systems in a standard 19 inch four post IT enclosure for parallel capacity (PC) power applications from 12 to 60 kW, or installed with other like systems in a standard 19 inch four post IT enclosure for parallel redundant (PR) power applications from 12 to 60 kW (N+1). Any system deployment shall comprise of hot swappable / user replaceable 12 kVA/12 kW electronics modules. Each replaceable12 kVA/12 kW electronics module contains individual UPS system logic controls, a power factor corrected input power converter/rectifier, PWM inverter, continuous duty bypass static switch module and battery charging circuit. Each 12 kW system shall also comprise of hot swappable / user replaceable battery modules, individual user replaceable LCD interface display, intelligent automated maintenance bypass contactor, battery breaker, individual system input breaker, and output distribution breaker. Each 12 kW module shall contain two battery strings in parallel enhancing system reliability. The system shall be designed that all modules in parallel will all equally support the individual output distribution breakers and receptacle used to connect to independent output distribution modules (Rack Power Module).
The UPS shall consist of the following pieces, as required by the project;
UPS module(s) with internal battery and internal automated maintenance bypass
Extended battery runtime modules
Paralleling power bus system located in a typical IT enclosure
Rack mountable power distribution modules
Rack mounted three (3) breaker maintenance bypass, 6U high
Battery connection box for customer supplied external batteries, (400V systems ONLY)
Paralleling bus bar system and wireway designed for mounting in existing IT rack
Other features as described in this specification.
UPS modules, extended battery modules, rack mounted power distribution modules and power distribution units, shall be capable of installation in any EIA-310-D, or EIA-310-E four post 19 inch IT enclosure, with minimum depth of 765mm (30 inch).
The paralleling power bus option can be ordered pre-installed in one EIA-310-D four post 19 inch, (600mm or 24 inch wide), 42U high equipment enclosure with a depth of 1070mm or 42 inches. The 6U electrical connection wireway can be specified to be installed in the bottom or top of the IT enclosure.
In addition, this specification describes the following:
Automated UPS maintenance bypass system and its operation with the rack mounted power distribution unit, hereafter referred to as the RPM or Rack Power Module.
Parallel bus bar kit for installation in a standard EIA-310-D (E) enclosure.
Rack level power management and distribution products.
Software and connectivity solutions for integrating power system information into building or facility monitoring requirements.
The UPS and associated equipment shall operate in conjunction with a primary power supply and an output distribution system to provide quality uninterrupted power and distribution for mission critical, electronic equipment loads.
All programming and miscellaneous components for a fully operational system as described in this specification shall be available as part of the System.
UL 1778 (Underwriters Laboratories) – Standard for Uninterruptible Power Supply Equipment. Product safety requirements for the United States.
CSA C22.2 No 107.1(Canadian Standards Association) – Commercial and Industrial Power Supplies. Product safety requirements for Canada.
IEC 62040-1-1 (International Electrotechnical Commission) – Uninterruptible power systems (UPS) – Part 1-1: General and safety requirements for UPS used in operator access areas.
IEC 62040-1-2 (International Electrotechnical Commission) – Uninterruptible power systems (UPS) – Part 1-2: General and safety requirements for UPS used in restricted access locations.
IEC 62040-3 (International Electrotechnical Commission) – Uninterruptible power systems (UPS) – Part 3: Method of specifying the performance and test requirements.
CISPR 22: FCC Rules and Regulations 47, Part 15, Class A (Federal Communications Commission) – Radio Frequency Devices.
Where applicable, the UPS shall also be designed in accordance with publications from the following organizations and committees
IEEE 587 (ANSI C62.41) Category A & B (International Electrical and Electronics Engineers) – Recommended practices on surge voltages in low voltage power circuits.
NFPA 70E®: Standard for Electrical Safety in the Workplace®
NEMA - National Electrical Manufacturers Association
OSHA - Occupational Safety and Health Administration
MIL-HDBK-217E (Military Handbook) – Reliability prediction of electronics equipment
IEEE 519-1992 Standard Practices and Requirements for Harmonic Control in Electrical Power Systems.
UPS MODES OF OPERATION
Standard: Power strategy set for High Efficiency: Utilizing commercial AC power, the critical load shall be continuously supplied regulated and protected AC power. The system shall power the load while regulating both voltage and frequency in compliance with the UPS output specifications (Section 2.2C). The system shall derive power from the commercial AC source if the input source is within the specifications for the UPS input. Upon loss of AC power or an event where the input AC source is not is tolerance the UPS shall supply DC power to the Inverter which will supply an output voltage in compliance with the output voltage specifications. System efficiency will be 98% or better for loads exceeding 70%, 97% or greater, over the range of 40% to 70% load. System efficiency will be 95% or better from 20 to 40% load. The UPS shall be able to distinguish between upstream (utility) faults and downstream (load) faults, and react appropriately to protect and support the critical load, without interruption. When High Efficiency is utilized, the UPS must perform per the IEC 61000-4-4 level 2 fast transient and IEC 61000-4-5 level 3 surge specifications. During standard operation the AC source shall provide power for the loads in conjunction with charging the battery.
Normal: Power strategy set for Normal: Utilizing commercial AC power, the critical load shall be continuously supplied regulated and protected AC power. The system shall power the load while regulating both voltage and frequency in compliance with the UPS output specifications (Section 2.2C). The system shall operate in double conversion mode of operation unless forced or commanded to battery mode, bypass mode, high efficiency mode or system off. The system shall derive power from the commercial AC source and shall supply DC power to the Inverter in conjunction with charging the battery. All systems shall be capable of changing between normal and high efficiency modes from the front panel of the UPS system. All parallel connected systems shall change modes together, needing only one of the parallel connected modules to be programmed. There shall be no time restraints for normal mode operation.
Battery: Upon failure of the commercial AC power, the critical load shall continue to be supplied AC power by the system, which shall obtain power from the batteries without any operator intervention. Continuous operation of the critical load shall never be jeopardized during the failure or restoration of the commercial AC source.
Charger: Upon restoration of the commercial AC or back-up generation source, the charger shall recharge the batteries and simultaneously supply power to the input power converter (rectifier) which provides power to the Inverter. This shall be an automatic function and shall cause no interruption to the critical load.
Static Bypass: Each UPS power module shall incorporate a continuous duty static bypass to provide transfer of critical load from the inverter output to the bypass source. This transfer, along with its retransfer, shall have no effect on the operation of the critical load. In the event of an emergency or severe overload on the UPS output, this transfer shall be an automatic function.
Maintenance Bypass: Each UPS module shall be equipped with an intelligent automated internal make-before-break maintenance bypass to isolate the UPS during routine maintenance and service of the UPS electronics or battery modules. The maintenance bypass shall be powered by a separate power supply, not part of the removable electronics module.
Bid requirement bill of materials.
Product catalog sheets or equipment brochures.
Product guide specifications.
System single-line operation diagram.
Installation information, including weights and dimensions.
Information about terminal locations for power and control connections.
Drawings and details for requested optional accessories.
Installation and user manual including:
Instructions for storage, handling, examination, preparation, installation, and start-up of UPS.
Instructions for operating the system
Battery Wiring Diagram
UPS One-Line Drawings
Equipment Outline Drawings
Accessory Wiring Diagrams
The UPS shall be sized for _____ kW /____ kVA load (12/12, 24/24, 36/36, 48/48, 60/60 please select one)
The UPS system (shall/shall not) have N+1 redundancy.
The UPS battery shall be sized for _____ minutes runtime at a Power Factor of_____ for a _____ kW load.
System Capacity: The system shall be rated for full kW output in the following configurations
12 kW/kVA – using one (1) 12kW UPS system
12 kW/kVA (N+1) – using two (2) 12kW UPS systems
24 kW/kVA - using two (2) 12kW UPS systems
24 kW/kVA (N+1) – using three (3) 12kW UPS systems
36 kW/kVA - using three (3) 12kW UPS systems
36 kW/kVA (N+1) – using four (4) 12kW UPS systems
48 kW/kVA - using four (4) 12kW UPS systems
48 kW/kVA (N+1) – using five (5) 12kW UPS systems
60kW/kVA - using five (5) 12kW UPS systems
60 kW/kVA (N+1) – using six (6) 12kW UPS systems
When power strategy is set for Normal, all systems will support up to 12 kVA/12 kW of connected load. All N+1 configurations will include fully isolated and redundant logic controls, electronics modules, battery systems, battery breakers, static switch assemblies, and automatic maintenance bypass.
AC Input nominal voltage: 400Y/230V, 3 Phase, 4 wire plus ground 50 or 60 Hz.
AC Input Voltage Window (range before re-transfer from battery):
System loading less than 93% or 11kW per 12 kW module: 168 to 289vac, line to neutral, (-27/+27%), without using stored energy mode.
System loading greater than 93% or 11 kW per module: 184 to 289vac, line to neutral, (-20/+27%) without using stored energy mode.
“Transfer to battery” window is typically 3 to 5% more that re-transfer from battery to compensate for hysteresis.
Maximum Frequency Range: (automatically set upon start-up)
60 Hz operation: 55-65 Hz before switching to battery operation
50 Hz operation: 45 to 55 Hz before switching to battery operation
Input Power Factor:
While operating in High Efficiency: > .97 with fully loaded active PFC IT loads (load dependent)
While operating in Normal: > .99 operating at full load from IGBT based input power converter (load independent)
Input Current Distortion (with no additional passive filter)
While operating in HE: < 10% typical with fully loaded active power factor corrected (PFC) IT loads (load dependant)
While operating in Normal: < 5% operating at full load from UPS input power converter, with PFC or Non-PFC loads.
Current inrush: No transformer magnetizing inrush in standard UPS
From start or retransfer from battery: Shall not exceed connected load inrush
For parallel systems: Staggered transfer from battery: Upon retransfer from battery each UPS module shall delay transfer to the incoming source for a minimum of 500ms (1/2 second) from the retransfer of the prior UPS module on the same parallel bus.
AC Output: 400Y/230V, 3 Phase, 4 wire plus ground, 50 or 60 Hz.
AC Output Voltage Distortion: Max. 3% @ 100% Linear Load.
AC Output Voltage Window:
207 vac to 253 vac L to L (+/- 10%)
Voltage Transient Response:
HE operation: Dependant upon input mains source, however typically maintains voltage within output specification window with +/- 1% maximum deviation for 0-100% or 100% to 0 load step
Normal operation: +/- 6% RMS maximum for 0-100% or 100% to 0 load step in conjunction with typical output voltage window