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Engineering Specification Protect 2.33 2.0 Uninterruptible Power Supply UPS EN 2 CONTENTS 1. Description of the unit........................................................................ 3 2. Electrical and performance features.................................................. 4 2.1 Mains Input (Rectifier Input Line).......................................................................4 2.2 Inverter................................................................................................................7 2.3 Static Bypass.....................................................................................................12 2.4 Maintenance Bypass........................................................................................15 2.5 Batteries............................................................................................................16 2.6 General Features & Efficiency.........................................................................19 2.7 Miscellaneous...................................................................................................20 3. Physical dimmensions and models................................................... 23 3 1. Description of the unit This unit is an on-line, double conversion, three-phase uninterruptible power supply. The classification of this unit, according to “Classification of UPS by performance (Annex D.10, EN-62040-3)”, is: Classification code V F I Output dependency (1) __ S S Output waveform (2) __ 1 1 1 Output dynamic performance (3) The main constituent parts of this equipment are: • Input and Output EMC filters • Active Rectifier with PFC and THD-I correction • Static Inverter • Static Bypass • Maintenance Bypass • Batteries • Control Panel • Communications Notes: ”VFI” stands for Voltage and Frequency Independent (from those of the input) unit. (1) “SS” stands for Sinusoidal output either in normal or in stored energy mode. (2) ”111” stands for output dynamic performance classification “1” (see EN-62040-3) in either: (3) a) Change of operation mode; b) Step linear load; c) Step reference non-linear load 4 2. Electrical and performance features 2.1 Mains Input (Rectifier Input Line) Specification Input topology Description 3 phases, Neutral + Ground Nominal input 3 x 400 V ph-ph, voltage 230 V ph-N Input voltage margins, mains failure +15 % / -20 % (default values) Programmable through control panel. Maximum upper limit: +20 % • Minimum upper limit: +5 % • Maximum lower limit: -25 % • Minimum lower limit: -5 % When phase-neutral voltage of ANY phase is above or below the margins it is considered a mains failure and the unit turns to back-up mode (rectifier turned off). Mains comeback Mains failure margins ±4 %: +11 % / -16 % (default values) Upon mains failure and rectifier turned off, rectifier will restart if phase-neutral voltages of ALL 3 phases are within programmed margins ±4 % hysteretic level. Nominal input 50 Hz or 60 Hz frequency Selectable through control panel. Input frequency margins 5 Hz (default value) Selectable through control panel, between 4 options: 1) 0.5 Hz 2) 1.0 Hz 3) 2.0 Hz 4) 5.0 Hz Input frequency hysteretic margin 1.0 Hz (default value) Selectable through control panel, between 4 options: 1) 0.2 Hz 2) 0.5 Hz 3) 1.0 Hz 4) 2.0 Hz 5 Specification Description Frequency limits calculation If input frequency is above upper loss limit or below lower loss limit, it is considered as a mains failure (turn to back-up mode). If input frequency is within upper comeback limit and lower comeback limit, it is considered as a mains return (return to normal mode). • Upper loss limit calculation: Nom. Input Freq. + (Input Freq. Margin) • Lower loss limit calculation: Nom. Input Freq. - (Input Freq. Margin) • Upper comeback limit calculation: Nom. Input Freq. + (Input Freq. Margin) - (Hysteretic Margin) • Lower comeback limit calculation: Nom. Input Freq. - (Input Freq. Margin) + (Hysteretic Margin) Example: for default values (margin 0.5 Hz, hysteretic margin 0.2 Hz), @ 50 Hz nominal frequency. • Upper loss limit calculation: 50 Hz + (0.5 Hz) = 50.5 Hz • Lower loss limit calculation: 50 Hz - (0.5 Hz) = 49.5 Hz • Upper comeback limit calculation: 50 Hz + (0.5 Hz) - (0.2 Hz) = 50.3 Hz • Lower comeback limit calculation: 50 Hz - (0.5 Hz) + (0.2 Hz) = 49.7 Hz Input current limitation Default value: 110 % (of the Nominal Input Current) Programmable through control panel. If the rectifier enters in the limitation mode, the unit will start to discharge batteries. In such case, the load of the inverter will be supplied by: 1)Up to 110 % of the rated input current by the rectifier. 2)Remaining necessary power by battery discharge. This situation will continue until end of back-up time, or unit transfer to bypass due to overload (whatever comes first). 6 Specification Description Input Protection • Units 10 ~ 30 kVA: 3-phase Circuit Breaker used as switch and current protection. • Units 40 ~ 80 kVA: Switch-disconnector Protect 2.33 has one common input terminal for rectifier and SBS. Up to 30kVA models have additional fuses between the Curcuit Breaker and the rectifier input. 40-80kVA models have additionl fuses between the common input switch and rectifier as well as input switch and SBS input. Balanced input current Yes Input current on all 3 phases is perfectly balanced, even with a completely unbalanced load or different phase input voltages. Input power factor 1.0 At any load condition above 10 % load. RECTIFIER ELECTRICAL SPECIFICATION DEPENDING ON THE MODEL Nominal rating (kVA) 10 15 20 30 40 60 80 Nominal input current (A) (at std. 3 x 400 V) 13 20 26 39 52 78 103 Input current total harmonic distortion 100 % load: THD-i <1.5 % 100 % load: THD-i <1.0 % 50 % load: THD-i <2.5 % 50 % load: THD-i <2.0 % 10 % load: THD-i <6.0 % 10 % load: THD-i <5.0 % 7 2.2 Inverter Specification Inverter topology 3 phases, Neutral Nominal inverter voltage 3 x 400 V ph-ph, 230 V ph-N Inverter voltage accuracy ±0.5 % Maximum DC ±50 mV offset Wave form Sine-wave UPS output dynamic load characteristic Load step: • 0 – 100 % : -7 % under voltage (<10 ms) • 100 % – 20 % : +5 % overvoltage (<10 ms) Dynamic After 10 ms, at 98 % recovery time of the static value Description Calibration through control panel. Minimum calibrating step is 0.1 V. Inverter DC output voltage offset can be adjusted to nearly 0.0 V by using an instrument capable of extracting precise DC component of an AC waveform. This DC offset compensation can be adjusted through the unit control panel. At any load condition and operation mode. 8 Output dynamic performance classification “111” Output dynamic performance classification “1” (see EN-62040-3) in either: a)Change of operation mode; b)Step linear load; c)Step reference non-linear load Specification Description Maximum phase angle deviation <2º Maximum voltage unbalance ratio <1 % Voltage unbalance test: nominal output current, linear load on 2 phases (test according to EN-62040-3, point 6.3.4.5) Nominal inverter frequency 50 Hz or 60 Hz Selectable through control panel. (see Bypass Frequency By default Inverter is synchronized to synchronization Margins, Bypass Frequency bypass, if bypass frequency is within to bypass Hysteretic Margin, etc.) limits (see bypass specs). It is also selectable through control panel not to be synchronized to bypass. Then the inverter will run free at nominal frequency. Inverter 9 Inverter ±0.05 % frequency accuracy without mains Max. synchroniza tion speed 10 Hz / s (default value) Programmable through control panel, from 0.1 Hz / s to 10.0 Hz / s (with 0.1 Hz resolution) Specification Description Output • Linear resistive load: voltage THD-v <0.5 % (load total harmonic 10 % ~ 100 %) distortion • Ref. non-linear load (EN-62040-3): THD-v <1.5 % • Linear resistive load: output voltage distortion is kept low from 10 % up to 100 % load. -- 100 % load equals to: Pload (kW)=0.8*Sunit (kVA) Inverter • Alarm level voltage out of activation: ±6 % margins alarm • Alarm level deactivation: Activation level – Hyst.level ±6 % - (2 %) = ±4 % Inverter Voltage alarm is given if such voltage r.m.s., phase-neutral, on any phase goes beyond ±6 % of nominal value. No further action is taken (inverter continues working). Alarm is cleared if all phase voltages return within margins considering a hysteretic margin of 2 %. Example: alarm levels calculation for 230 V ph-n unit: • Activation: 230*1.06 = 243.8 V • Deactivation: 230*(1.06-1.02) = 239.2 V DC offset at the output protection • Alarm level: 5.0 V, 4 secs. • Alarm clear: 3.0 V • Block level: 8.0 V, 10 secs. (output P.F. = 1) • Ref. non-linear load (EN-62040-3): Pload (kW) = 0.7*Sload (kVA) = = 0.7*Sunit (kVA) (output P.F. = 0.7) If DC component is detected at the output, at a first level an alarm is given (specified value and time). If higher value is measured (specified block value) for 10 secs, inverter is blocked. 10 Specification Description Overload warning • Load on any phase higher than 100 % rated kVA per phase (Sunit (kVA) / 3). • Total load on all 3 phases higher than total rated kW 0.8*Sunit (kVA)). Alarm consisting of: acoustic buzzer, red LED indication and LCD panel message. Example: overload level calculation for a 30 kVA unit. • By phase: (30 kVA / 3) = 10 kVA • Total: 0.8*30 kVA = 24 kW Overload transfer Either due to phase over- • After overload time, unit transfers to load or total overload, the bypass if it is not blocked (may occur default transfer time because bypas is out of voltage or freto bypass is: quency margin). 1)100 ~ 125 %: 10 mins. 2)125 ~ 135 %: 5 mins. 3)135 ~ 150 %: 1 min. 4)>150 %: immediate (internal measurement delay of around 20 ms) See below: Graph (1) “Default Overload Transfer Curve” Overload clear After overload warning and retransfer and / or overload transfer to bypass, overload condition disappears if: • Load on ALL phases lower than 90 % rated kVA per phase (Sunit (kVA) / 3). • Total load on all 3 phases lower than total rated kW 0.9 (0.8*Sunit (kVA)). After overload condition is cleared, the unit restarts inverter and returns to normal mode (output transfer from bypass to inverter). 11 Specification Description Inverter current limit Default values: • RMS Limit: 150 % • Peak Limit: 300 % Both values are programmable through control panel: • RMS Limit: r.m.s. inverter output current is limited to programmed value (150 % default), by reducing r.m.s. output voltage. • Peak Limit: Peak inverter output current is limited to programmed value (300 % default), by reducing output waveform crest (maintaining r.m.s. value if r.m.s. output current is <150 %). Output short-circuit protection Yes • In normal mode: • UPS will deliver maximum current (see above) for 80-100ms. After this time the UPS output will be switched off. • If the unit is in bypass, output enable until the input breaker trips or bypass fuses blow. INVERTER ELECTRICAL SPECIFICATION DEPENDING ON THE MODEL Nominal rating (kVA) 10 15 20 30 40 60 80 Inverter efficiency (%) (UPS efficiency on back-up mode) 94.5 95.0 95.3 95.9 96.2 96.4 96.9 Admissible crest factor (1) 3.4 to 1 3.2 to 1 Note: (1) at low battery levels, admissible Output Crest Factor may decrease 2.8 to 1 12 Load (%) OUTPUT TRANSFER TO BYPASS DUE TO OVERLOAD 150 % 135 % 125 % 100 % Time (mins.) 1 min 5 min 10 min Graph (1): “Default Overload Transfer Curve” 2.3 Static Bypass Specification Description Bypass topology 3 phases, Neutral • There is one common terminal block for rectifier and bypass input. Nominal bypass voltage 3 x 400 V ph-ph, 230 V ph-N Type Solid state 6 double SCR modules (3 pairs, 1 pair per output phase). Activation criterion Digital control On each transfer (bypass to inverter or inverter to bypass), microprocessor & DSP control each double SCR by detecting SCR aperture and closing opposed SCR independently per phase. Transfer time without interruption Admissible overload 400 % for 10 sec Protected by Input breaker or SBS Fuse 13 Specification Description Bypass voltage +12 % / -17 % margins, (default values) bypass failure Programmable through control panel. • Maximum upper limit: +20 % • Minimum upper limit: +5 % • Maximum lower limit: -25 % • Minimum lower limit: -5 % When phase-neutral voltage of ANY bypass phase is above or below the margins, it is considered as a bypass failure. An alarm is given, but the unit continues in normal mode, but synchronized to bypass (if freq. margins are within limits). If bypass is not o.k. for any reasons it will be blocked. Unit will not transfer to bypass. Bypass failure Bypass failure margins comeback ±4 %: +8 % / -12 % (default values) Upon bypass failure, the alarm will clear if phase-neutral voltages of ALL 3 phases are within programmed margins ±4 % hysteretic level. Nominal bypass frequency 50 Hz or 60 Hz Selectable through control panel. Bypass frequency margins 0.5 Hz (default value) Selectable through control panel, 4 options: 1) 0.5 Hz 2) 1.0 Hz 3) 2.0 Hz 4) 5.0 Hz Bypass frequency hysteretic margin 0.2 Hz (default value) Selectable through control panel, 4 options: 1) 0.2 Hz 2) 0.5 Hz 3) 1.0 Hz 4) 2.0 Hz 14 Specification Bypass frequency limits calculation Description If bypass frequency is above upper loss limit or below lower loss limit, it is considered a bypass failure. If input frequency is within upper comeback limit and lower comeback limit, it is considered bypass failure clear. • Upper loss limit calculation: Nom. Byp. Freq. + (Byp. Freq. Margin) • Lower loss limit calculation: Nom. Byp. Freq. - (Byp. Freq. Margin) • Upper comeback limit calculation: Nom. Byp. Freq. + (Byp. Freq. Margin) - (Hysteretic Margin) • Lower comeback limit calculation: Nom. Byp. Freq. - (Byp. Freq. Margin) + (Hysteretic Margin) Example: for default values (margin 0.5 Hz, hysteretic margin 0.2 Hz), @ 50 Hz nominal frequency. • Upper loss limit calculation: 50 Hz + (0.5 Hz) = 50.5 Hz • Lower loss limit calculation: 50 Hz - (0.5 Hz) = 49.5 Hz • Upper comeback limit calculation: 50 Hz + (0.5 Hz) - (0.2 Hz) = 50.3 Hz • Lower comeback limit calculation: 50 Hz - (0.5 Hz) + (0.2 Hz) = 49.7 Hz 15 2.4 Maintenance Bypass Specification Description Maintenance bypass topology 3 phases, Neutral Connects directly the input terminals to the output termianals. Nominal maintenance bypass voltage 3 x 400 V ph-ph, 230 V ph-N Maintenance bypass connection method Switch-disconnector (3-phase) Maintenance • Without interruption bypass • Inverter protected operation and protection For all unit models. Neutral is permanently connected from input to output terminals. • The authorized operator must transfer the output to bypass first, and then turn-on maintenance bypass. Then input, output, and battery switch can be turned off, and also neutral disconnector can be opened. If battery measurement connector is also removed (CN10 of BM500 PCB), the operator can safely work inside the unit. • In case of accidental operation of maintenance bypass in normal mode, digital control shuts-down the inverter, and transfers output to bypass. 16 2.5 Batteries Specification Description Battery number 31+31 3 poles: positive, mid-point, negative Battery type 12 V, lead acid Different capacity depending on the model. See table below. Battery charge time 5 hours (90 % capacity) For standard batteries and charge current. Default 0.2 Capacity charge current (default value) Programmable through control panel. Maximum charger current 10 to 30 kVA: 23.5 A 40 to 60 kVA: 47.0 A 80 kVA: 70.5A Maximum programmable battery charger current Battery charging method 1)Constant current By bus voltage variation, batteries are charged first at constant current (default 0.2 Capacity), and when arriving at floating battery voltage, this voltage is maintained at constant. Battery float voltage 13.65 V / battery, @ 20 ºC Total battery float voltage will be: +423 V / -423 V, @ 20 ºC Battery low warning • Activation: 11.2 V / battery • Deactivation: 11.6 V / battery 2)Constant floating voltage Cut-off 10.5 V / battery battery voltage (end of back-up time) An alarm (acoustic, red LED on control panel, LCD message) is given if battery voltage decreases to specified activation level. Inverter is stopped, and output will not be supplied anymore until the mains returns. Power Supply PCB of the unit will continue working. 17 Specification Power supply 11.5 V / battery cut-off after end of backup time Description After cut-off battery voltage and unit shut-down, battery voltage will normally increase significantly, above 12 V / battery (no load). Then, at no-load condition, battery voltage may start decreasing very slowly, and at safety level specified (activation) power supply will be turned off, to prevent battery discharge under this condition. Battery -24 mV / ºC (default value) Programmable through control panel. temperature Units with external batteries cabinet compensation need external temperature probe wiring (NTC) to be connected. Battery connection & protection method 10 - 40 kVA: Fuse holder, 3 fuses 60 - 80 kVA: Battery switch 10 - 40 kVA: Fuse-holder is used for isolating the battery and protectuion. 60 - 80 kVA: External fuses in the battery cabinet. Mid-point of the battery is also protected by fuse. Battery test Yes Dedicated algorithm, based on controlled battery discharge, maintaining rectifier working and loads protected. Output load level independent Back-feed to mains possible. Back-up time estimation Yes Dedicated algorithm. 18 BATTERY ELECTRICAL SPECIFICATION DEPENDING ON THE MODEL Nominal rating (kVA) 10 15 20 12 V 7 Ah 12 V 7 Ah 12 V 9 Ah 10 9 30 40 60 80 - - Built-in batteries Type Back-up time (minutes) 15 External battery 20 12 V 26 Ah 14 20 cabinet 2 57 34 14 8 - cabinet 4 12 V 18 Ah Type 9 cabinet 3 12 V 12 Ah 32 External battery Back-up time (minutes) 8 cabinet 1 Type Back-up time (minutes) 12 V 12 V 12 Ah 18 Ah 12 V 40 Ah 24 40 25 15 10 19 2.6 General Features & Efficiency Specification Description Unit power factor 0.8 Load power factor range 0.1 inductive ~ 0.1 capacitive This load power factor can be up to 0.1 either inductive or capacitive. Output load connection method Switch-disconnector (3-phase). For all unit models. Output topology 3 phases, Neutral All neutrals are connected internally. EFFICIENCY DEPENDING ON THE MODEL Nominal rating (kVA) 10 15 20 30 40 60 80 Overall efficiency (%), normal mode (100 % linear load) 91 91.3 92 92.4 93.1 93.6 94.3 95.0 95.3 95.9 96.2 96.4 96.9 Efficiency in back-up mode 94.5 (%) (100 % linear load) 20 2.7 Miscellaneous Specification Control panel 1)LCD display. 2)LED indications. 3)Keyboard. Description 1)5,7" LCD touchscreen, backlight (with saving mode). 2)5 LED indications: a)Rectifier input volt. OK b)Unit on bypass c)Inverter is working d)Unit in back-up mode e)General alarm 3)Keyboard: 6 keys -- ENT: “Enter” key: confirmation of orders, program values. -- ESC: “Escape” key: return to main screen, cancel / finish programming. -- , arrow keys: for menu navigation or digit modification. -- , arrow keys: for submenu navigation or cursor displacement. EPO function 1)2-way connector, normally closed (allows remote switch). System stop. All UPS converters are turned off, and no output voltage is supplied. 1)In case of activation, units must be completely shut-down (open all switches), and restarted in order to clear that block. 21 Specification Description Fan speed control 1)Slow (less noisy) 2)Fast Fan speed is slow (half-speed), while both rectifier and inverter heat sink temperatures are below 47 ºC. Otherwise speed is fast (full-speed). Heat sinks temperature rises when increasing load. Communica tion ports • RS232 • RS485 Both sharing same female SUB-D9 connector, not simultaneously working. • RS232 used pins: -- #2 : Tx – transmit. -- #3 : Rx – receive. -- #5 : GND – ground. • RS485 used pins: differential balanced line. -- #4: A – positive. -- #9: B – negative. Communica 1)Modbus tion protocols 2)SEC 1)Modbus: RTU format. 2)SEC: UPS Standard Protocol (Systems Enhancement Corporation) Relay interface Configuartion of relays (Pin No. X32 SUB-D9 connector): • #1 : Shut-down + • #2 : Shut-down • #4, #9 : Discharge (#4-Normally Closed, #9- Normally Open) • #5 : COMMON • #6 : Unit on Bypass (Normally Open) • #7 : Low Battery (N.Open) • #8 : General Alarm (N.Open) Remote signalling consists of 4 output relays, whose common point is connected to #5. An input signal can also be externally supplied to perform UPS inverter shutdown (5 V ~ 12 V DC). Each relay can also be programmed (in advanced mode) through control panel by activation or deactivation of other UPS alarms and events. In addition to the DB9 connector thre are screw terminals on the interface board. 22 2.8 Environmental Performance Specification Description Operating temperature range 0 °C ~ 40 °C Normal mode, full load. Storage temperature -15 °C ~ 60 °C UPS 0 ~ 35 °C Battery Relative humidity 0 – 95 % No condensing Altitude <1000 m for nominal power Over 1000 m the power de-rating is 1 % every 100 m 2.9 Regulatory Standards Specification ESD IEC / EN 61000-4-2 Level 3 Low frequency signals IEC / EN 61000-2-2 RS IEC / EN 61000-4-3 Level 3 EFT IEC / EN 61000-4-4 Level 3 Surge IEC / EN 61000-4-5 Level 3 CS IEC / EN 61000-4-6 Level 3 Power frequency magnetic field immu nity IEC / EN 61000-4-8 Level 3 Conduction IEC / EN 62040-2 Category C3 Radiation IEC / EN 62040-2 Category C3 Safety IEC / EN 60950-1:2008 IEC / EN 62040-1:2008 Insulation & dielectric rigidity IEC / EN 62040-1 Leakage current IEC / EN 62040-1>30mA Performance IEC / EN 62040-3 Transportation ETS 300019-2-2 class 2.3 Protection IP20 (static) Other standards CE 23 3. Physical dimmensions and models Dimensions & Weights Nominal rating (kVA) (MODELS) 10 15 20 30 40 60 80 180 210 230 12 Ah 18 Ah 12 V 12 V - - - - Depth (mm) 700 805 Width (mm) 450 590 Height (mm) 1100 Weight (no batteries) (Kg) 110 Built-in battery type (2 x 31) Weight + built-in batteries (kg) 7 Ah 12 V 7 Ah 12 V 250 1320 9 Ah 270 External battery cabinets cabinet 1 406 530 cabinet 3 Depth (mm) 700 805 Width (mm) 450 590 Height (mm) Battery type (2 x 31) Battery cabinet weight (kg) 1100 1320 12 V 12 Ah 12 V 26 Ah 250 710 External battery cabinets cabinet 2 cabinet 4 Depth (mm) 700 980 Width (mm) 450 650 Height (mm) 1100 1322 12 V 18 Ah 12 V 40 Ah 410 1020 Battery type (2 x 31) Battery cabinet weight (kg) Guarantee Model: Serial Number: Purchase date: Dealer Stamp/Signature Errors and technical modification subject to change. OPERATING INSTRUCTIONS 8000032013 BAL, EN Emil-Siepmann-Str. 32 59581 Warstein-Belecke – Germany Tel.: +49 180 523 4787 – Fax: +49 180 523 4789 www.aegpartnernet.com