MITSUBISHI UPS SYSTEMS MITSUBISHI UPS 9800 SERIES SINGLE MODULE SYSTEM SPECIFICATIONS Keyitec, Inc. Tel.: 480-563 4172 Fax: 480-563 4997 e-mail: sales@keyitec.com Rev 1.
TABLE OF CONTENTS 1. SCOPE ................................................................ ................................................................................................ .............................................................................................. ..............................................................1 ..............................1 1.1. 2. SYSTEM DESCRIPTION ................................................................ .....................................
1. SCOPE 1.1. The System This specification describes an on-line, three phase, solid-state, uninterruptible power system, hereafter known as the UPS. The UPS shall operate utilizing the existing power distribution system to provide a high quality, reserve source of power to electronic equipment loads. The system shall consist of a rectifier, system battery, solid-state inverter, automatic static bypass transfer circuit and integral maintenance bypass circuit. 2. SYSTEM DESCRIPTION 2.1.
j. k. l. m. n. o. Automatic UPS restart and load pick-up (after system battery depleted; AC restored). Programmable external customer contacts (A-Type) dry contacts. Touch screen person-machine interface. Remote and Local Emergency Power Off (EPO). Static Bypass Disconnect. History graph of Kw, UPS events 2.1.6. Optional features: a. b. c. d. Remote monitor panel. Maintenance Bypass Switch (MBS). Input Isolation Transformer. Wall mounted or free standing DC cable landing cabinet. 2.2.
inverter and bypass is not accomplished. The use of the static switch shall not be required during the manual or automatic re-transfer process, thus increasing reliability. 2.2.5. Remote - The UPS logic shall be capable of remote operation allowing activation of the following functions from a remote location: a. b. c. Inverter stop. Inverter start. Emergency power off. 2.2.6. Maintenance Bypass – The UPS system shall be equipped with an external MBS to allow safe and reliable maintenance of the UPS.
3.2.1. Nominal input voltage: 480, 600 V, 3 phase, 3 wire. 3.2.2. Input voltage range: +15%, -15%. 3.2.3. Input frequency and range: 60 Hz ± 5%. 3.2.4. Input power factor: .98 (typical) at 100% load; 0.90 (typical) at 50 % load. 3.2.5. Reflected input current THD: 6% maximum at 100% load. Typically 9% maximum at 50% load. 3.2.6. Rectifier walk-in time: 5 through 30 seconds (every 5 seconds selectable, 0 to 100% rated load). 3.3. Input (Bypass) 3.3.1. Nominal input voltage: 480, 600 V, 3 phase, 4 wire. 3.3.
3.4.6. Output frequency slew rate (inverter synchronized to static bypass): 1 Hz, 2 Hz or 3 Hz/second (selectable). 3.4.7. Free running output frequency (on battery or asynchronous): 60 Hz +/- 0.05%. 3.4.8. Output voltage harmonic distortion: a. b. 2% THD maximum with 100% linear load. 5 % THD maximum with 100% non-linear load. Load power factor range of 0.7 lagging to 1.0 within kW rating of UPS. 3.4.9. Output overload capability: a. b. 105% to 125% for 10 minutes. (voltage regulation maintained).
b. Recommended operating range: 30% to 90%. 3.5.6. Heat dissipation (at 100% load). a. b. XX kBTU/hr XX kW 3.5.7. Acoustical noise level: XX dba @ 1 meter 3.5.8. The inverter shall have an output contactor to isolate the inverter from the load and bypass source. 3.6. Reliability The UPS equipment reliability shall be represented in terms of theoretical MeanTime-Between-Failures (MTBF). The UPS manufacturer shall, as a minimum, provide the following capability: 3.6.1.
The system battery shall be sized to provide the specified back-up time to the inverter when the UPS is supplying 100% rated load. The battery shall be of the VRLA, Flooded Lead Acid or Nickel Cadmium types. 3.8.1. VRLA Battery System Example (EXAMPLE using 375 kVA UPS) a. The battery system shall include a DC cable landing box equipped with a 1000A/600Vdc breaker. The landing box shall interface the UPS’ DC input to battery cabinets. b.
4.1.3. Automatic Input Walk-in The Rectifier logic shall employ circuitry to allow a delayed and timed ramping of input current. Subsequent to energizing the Rectifier input, the ramping of current shall be delayed by a maximum of 3 seconds. Upon starting the walk-in process, the ramping of current shall be timed to assume the load gradually within 5 through 30 seconds (every 5 seconds selectable). This function shall be supplied as standard equipment. 4.1.4.
the specified float level). Upon completion of the timer count, the Rectifier output voltage shall return to the specified float voltage (typically 2.25 to 2.28 VDC/cell). 4.2.4. Battery Temperature Compensation The UPS shall have, as standard equipment, a battery temperature compensation function allowing the rectifier voltage to fold-back to a safe value in the event the battery temperature reaches a pre determined dangerous level. 4.2.5.
The Inverter output voltage shall not deviate by more than +/- 1% RMS due to the following steady state conditions: a. b. c. 0 to 100% loading. Inverter DC input varies from maximum to minimum. Environmental condition variations within the limitations set in section 3.5. 4.3.3. Frequency Control The Inverter output frequency shall be controlled by an oscillator internal to the UPS module logic. It shall be capable of synchronizing to an external reference (e.g.
providing redundancy and, in the event of a failure, prevent unnecessary damage to power transistor components/fuses. Load current above 150% shall cause an immediate transfer of the load to the bypass source for fault clearing. 4.3.7. Inverter Overload Protection The Inverter AC output shall utilize electronic current limiting for overload conditions. The Inverter shall utilize a contactor to isolate its output from the critical bus. a. b.
4.4.2. Automatic Re-transfers In the event that the critical load must be transferred to the bypass source due to an overload, the UPS system logic shall monitor the overload condition and, upon the overload being cleared, perform an automatic re-transfer back to the inverter output. The UPS system logic shall only allow a re-transfer to occur three times within a one minute period.
5.2. Remote Operation Certain UPS controls shall, as standard equipment, be capable of being operated from a remote location. The remote functions are provided for user convenience and shall be activated via, user supplied, external dry contact switches connected at the user interface wiring terminal. The following remote control functions shall be provided as a minimum: a. b. c. Inverter stop. Inverter start. Emergency Power Off. 5.3.
d. e. f. UPS startup Transfer of load to static bypass. Equalize charge to system battery. 5.4.2. Microprocessor Controlled Metering All meters shall be digitally displayed having an accuracy of 1% or better. The following parameters shall be available for display: a. b. c. d. e. f. g. h. i. j. k.
The UPS control logic power supply shall employ a redundant design utilizing the UPS utility input and the inverter output source. 7. UPS STATUS INTERFACING 7.1. User Selectable Output Contacts The internal UPS logic shall provide, as standard equipment, a programmable set of six (6) normally open, A-type dry contact outputs to allow user interfacing of the UPS operating status. The available parameters are identical to the alarm and status information schedule itemized in 5.4.3 above. 7.2.
8. OPTIONAL EQUIPMENT 8.1. Remote Status Alarm Panel (RSAP) The UPS manufacturer shall offer a Remote Status Alarm Panel which shall not allow any control over the UPS. The RSAP shall have, as standard equipment, a battery backup feature allowing it to continue monitoring UPS status conditions during power outage situations. Ride through shall be for a minimum of 8 hours. The RSAP shall act only as an annunciation panel providing the following alarms/indications as a minimum: a. b. c. d. e. f. g.
Forced air cooling shall be provided to allow all components to operate within their rated temperature window. Thermal relays, using a latched contact which is capable of being reset, shall be used as overload protection to all cooling fans. Each fan shall employ a separate thermal relay. All air inlets use washable air filters that shall be removable from the front of the UPS without exposure to any electrical hazard. Air filters shall be door mounted to prevent floor dust from being sucked into the unit.
M. Transfer switch operation 9.7. Eyebolts Eyebolts shall be installed as standard for lifting UPS. Four (4) heavy duty eyebolts will be installed on each corner on top of UPS. Eyebolts are detachable (unscrew manually) once UPS is set in installation area.
