MITSUBISHI UPS SYSTEMS MITSUBISHI UPS 9700 SERIES SPECIFICATIONS Rev 1 10/00 Keyitec, Inc. Tel.: 480-563 4172 Fax: 480-563 4997 e-mail: sales@keyitec.
TABLE OF CONTENTS 1.0 SCOPE ........................................................................................................ 1 1.1 The System .................................................................................................... 1 2.0 SYSTEM DESCRIPTION ................................................................................... 2.1 Components ............................................................................................. 2.2 Modes of Operation .................
1.0 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 converter, system battery, solid-state inverter, automatic static bypass transfer circuit and integral maintenance bypass circuit. 2.0 SYSTEM DESCRIPTION 2.
2.1.6 Optional features: a. b. c. d. 2.2 Remote monitor panel. Maintenance Bypass Switch (MBS). Input AC breaker (100 ~ 225 kVA). Input Isolation Transformer (Standard option on 480V input-208/120V output units). Modes of Operation The UPS shall be designed to operate continuously at rated capacity as an on-line, automatic system in the following modes: 2.2.1 Normal - The inverter continuously supplies AC power to the critical load.
Make-Before-Break, “Zero Energy” type to ensure maximum load reliability and personnel safety. 2.2.7 2.3 Applicable Standards The UPS has been designed in accordance with, and complies to, the following standards: a. b. c. d. UL 1778 and CSA 22.2 (cUL equivalent). IEC, Semiconductor Converter Standards. (#62040-3.2.16) ISO 9001 Quality Assurance program. This specification. 3.0 PERFORMANCE CHARACTERISTICS 3.1 Power Ratings The UPS output capacity shall be: XXX kVA/ XXX kW @ .8 pf lagging 3.
3.4 Output 3.4.1 Nominal output voltage: 208V, 3 phase, 4 wire. 3.4.2 Nominal dynamic voltage regulation: ± 1% for unbalanced loads. 3.4.3 Manually adjustable output voltage: ± 5% range. 3.4.4 Voltage transient response: Voltage transient response shall not exceed the following, and shall recover to within nominal voltage regulation limits within 16.7 msec: a. ± 2% for a 100% load step. b. ± 1% (loss or return of AC input). c. ± 5% (inverter ⇔ bypass). 3.4.
3.5.4 Storage temperature (non-operating): -20 to +70 degrees °C. 3.5.5 Relative humidity a. b. Maximum operating range: 5% to 95% (non-condensing). 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.
3.8.1 VRLA Battery System Example (EXAMPLE using 225 kVA UPS) a. The battery system shall include a DC landing box (Wall or floor mounted) equipped with a 600A/500Vdc breaker. The landing box shall interface the UPS’ DC input to battery cabinets. b. The battery shall be capable of operating in an average ambient temperature of 25 °C, with excursions of 16 °C to 32 °C and shall be sized as follows: 1. float voltage: 405 VDC (2.25 to 2.27 V/cell) 2. final voltage: 300 VDC (1.67V/cell) 4.
a. b. Converter input current (maximum) 110% of nominal Converter input current (aux.) 25%-100% variable 4.1.3 Battery Charge Current Limit The Converter logic shall provide DC battery current limiting for controlled battery charging. The battery current sensing shall be independent of the Converter DC output current sensing to provide precise battery recharging. The following battery current limits shall be provided as a minimum: a. 4.1.
activation via the control-logic mounted push button located behind the front door. The level of equalizing voltage shall be equal to that stated by the battery manufacturer (typically .04 to .08 VDC/cell higher than the specified float level). Upon completion of the timer count, the Converter output voltage shall return to the specified float voltage (typically 2.25 to 2.28 VDC/cell). 4.1.
providing rated output as stated in section 3.4 while operating from any DC voltage within the battery operating range. The Inverter shall utilize the following technologies: a. b. 4.2.2 Solid state PWM controlled IGBT power transistors switching at 6 kHZ. Switching shall be defined as IGBT turn on and turn off rate. Doubling of frequency at inverter output shall not be considered as the true switching frequency. DSP based control logic.
overload is in excess of the set current amplitude, the load power shall be transferred to the bypass source without interruption. 4.2.6 Inverter Current Limit The Inverter output shall also be limited to 150% of rated load current. The two sensing locations shall operate separately and independently thus providing redundancy and, in the event of a failure, prevent unnecessary damage to power transistor components/fuses.
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. Re-transfers shall be inhibited on the fourth transfer due to the likely hood of a recurring problem at the UPS load distribution.
a. b. c. 5.3 Inverter stop. Inverter start. Emergency Power Off. Mimic Bus Display A mimic bus identifying the internal UPS power circuit, contactors/circuit breakers, operating status and fault conditions shall be provided on the touch screen interface. The following display shall be included: a. b. c. d. e. f. g. h. 5.4 Converter operation. Battery operation. Converter on/off. Inverter on/off. Inverter synchronized with bypass. Load on inverter. Load on bypass. Equalize charge on.
c. b. c. d. e. f. g. h. i. j. k. l. m. n. o. p. q.
aa. bb. cc. dd. 6.0 Minor fault Inverter Output Condition (Open or closed) 52C Abnormal (Inverter Output) Battery Charge/Discharge Operation CONTROL LOGIC POWER The UPS control logic power supply shall employ a redundant design utilizing the UPS utility input and the system battery as power sources. 7.0 UPS STATUS INTERFACING 7.
8.0 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.
