Modern businesses are under pressure to maximise the (sales) revenue per square metre of floor space. The CEN-Power 'Compact' series of static inverters has been designed to significantly reduce the amount of floor area required without increasing the height. By careful design and selection, all components, including the batteries, can be accessed from the front. This means there is no need to leave space to the rear or sides of the cabinets for ventilation and maintenance, freeing up more floor area for other, more profitable purposes. A maximum cubicle depth of 620mm enables the equipment to comfortably fit through a standard doorway. The cubicle plinth allows for good manoeuvrability via forklift or pallet truck during installation. Systems comply with the latest British and European Standards. CEN-Power Compact series inverters are particularly useful when aesthetic or installation considerations preclude the use of conversions, slave luminaires, bulkheads, etc. This is because they are able to supply suitable standard mains luminaires without modification. They are also invaluable where high emergency lighting illuminance levels are required, such as standby lighting or high risk task areas. On medium to large installations, static inverters are a very cost-effective solution, particularly when taking into account their 10-year battery design life, which compares very favourably to the 3 to 4-year design life of self-contained nickel cadmium batteries. s
System Operation 2 Mains Available: The normal 230V mains supplies the battery charger (power factor corrected) which converts the AC into DC and charges the battery. The mains also supplies power to the load via the Changeover Contactor. This is the reserve or bypass path and is used with maintained systems. On systems with three phase input, the maintained circuit is supplied by only one of the three input phases (usually L3). The inverter is normally off when mains is available (passive standby). The maintained power can be remotely controlled via an external switched input. Mains Fail: The Inverter starts instantaneously and converts the DC from the battery to AC for the load. Once the inverter is on, the Changeover Contactor is switched automatically to enable the inverter to power the load. The inverter will supply 230V, 50Hz AC to the load until the mains is restored or until the end of rated duration in the case of extended mains failure. Should the battery become fully discharged the inverter will turn off automatically to protect the batteries from being overdischarged. System Features Battery Charger Power Factor Corrected, microprocessor controlled battery charger. This means that during battery recharge the current drawn from the mains is in phase with the voltage (0.99PF during recharge). In commercial terms it means lower electric bills to achieve the same result as a non-power factor corrected charger. It also means less distortion of your mains supply and low AC ripple into the battery which improves battery life. Single and three phase input available 80% capacity within 12 hours and full recharge within 24 hours, in compliance with BS EN 50171:2001. Temperature compensation battery charge voltage adjusted (+-3mV/degree C/cell) in accordance with battery manufacturers specification in order to optimise battery life. Constant voltage, current limited (C/10). Battery disconnect sensing the microprocessor tests the connection between battery and charger/inverter by monitoring the battery charge current. This proves that the battery fuse and cable are intact. Protection against battery over-voltage, input mains low and mains surges e.g. Surges caused by lightning. Battery Valve Regulated Lead Acid (VRLA) 10- year Design Life Compliant with BS EN 60896-2 s
3 Manual Battery Test A ten minute test and a deep (full duration) test are accessible via the display, the system will simulate a mains failure and discharge the battery for the predetermined time, and once the test is complete the system will reset and display an alarm if the battery is faulty. Low Voltage Battery Disconnect Disconnects the load from the battery in the event of an extended mains failure to help protect it from the damaging affects of deep discharge Resets automatically when the mains is restored Automatic Battery Test A weekly or monthly ten minute battery test can be selected. During setup, a convenient time and day for the test can be set. The battery capacity is tested, and once the test is complete the system will reset and display an alarm if the battery is faulty. Inverter High Frequency microprocessor controlled pulse width modulation (PWM) IGBT inverter. High quality sinewave output. Galvanic isolation with grounded neutral. High efficiency. Reliable, proven design Changeover Contactor Four pole (2 normally open and two normally closed) configured as a two-pole changeover to ensure that both the live and neutral are switched. Complies with relevant standards of BS 5424. Load Circuit Single output load circuit fitted as standard and is selectable maintained or non-maintained by changing a jumper bar on input terminals (default set-up is maintained) Multiple output fuse or MCB distribution option available (details on request) Remote Monitoring Facility Remote indication of a common fault is available via a changeover volt-free contact. Datalogger 200 Alarm records and 200 Battery records can be accessed via the display. An optional printer is available for hardcopy printout. Display Consists of a 4 x 20 character LCD dot-matrix display plus fourteen LED indicators, ten scrolling / command buttons and an audible alarm which sounds whenever there is a problem. LCD digital meter readings are provided, as follows (top two lines): o Inverter: o Reserve: o Charger: o Battery / DC: o Environment: o General: Volts AC / Amps / KVA / % Load / Frequency Volts AC / Amps / KVA / % Load / Frequency Volts AC / Frequency Volts DC / Battery Charge - Discharge Amps Ambient Temperature / Battery Temperature Time / Date / Auto-Test time and date of test s
LCD scrolling alarms / status text (lower two lines) o Charger / Reserve input mains fail o Boost Charge (vented batteries only) o Battery Disconnected o Battery / DC Over-voltage o Battery Test 10-minute + Deep Discharge Test o Battery Fault Failed Battery test o DC Earth Leakage (optional) o Auto Test (Automatic Battery Test) o Overload o Short-circuit o Over-temperature o Inverter Under-voltage o Inverter IGBT Saturation Fault o Inverter Peak Current Fault o Load On Inverter o Load on Reserve (Maintained Lights On) o Battery Low o Battery Under-voltage o Power Supply Fault LED Indicators 4 11: 12: 1: Mains On/Off 2: Battery Low 3: Battery Undervolts 4:Over Temperature 5: Inverter Off 6: Load on Inverter 7: Short Circuit (Load) 8: Overload 9: Load on Mains (Maintained Lights On) 10: No Synch. (not active) Enclosure Charger Off 13: DC Earth Leakage (optional extra) 14: Manual Bypass (optional extra) Pushbuttons High quality steel enclosure finished in RAL7032 light grey textured epoxy/polyester powder coating Front access enclosure all parts including batteries can be replaced or measured via the front door so there is no need to leave space at the back or sides of the unit for ventilation or maintenance Top cable entry with removable gland plate for easier installation IP rating for standard enclosures is IP23 (ratings up to IP55 are available, details on request) Plinth allows for good manoeuvrability via forklift or pallet truck during installation. Cabinets are only 620/400mm deep enabling them to fit through standard doors. Plinth colour is RAL7011. Single key locked front door. For added security, the option of double key locks (SD enclosures only) is available. 1: Enable & Off (Red) 2: Inverter On (Green) 3: Charger Boost (vented cells only) 4: Audible Alarm Mute/Reset 5: Indication Reset 6: Scroll Meters Left 7: Left Function Button 8: Right Function Button 9: Scroll Meters Right s
Type H W D SB(IP23) 1275 800 400 SD(IP23) 1800 820 620 Sizes subject to change without notice Factory Fitted Options 5 SB Enclosure SD Enclosure Integral Distribution: Single or double pole output circuit breakers can be fitted internally to eliminate the need for an external distribution board. Maximum number of outlets is 10 for single pole and 5 for double pole. Printer: An impact printer is available for hardcopy printout of Data-logger and battery test data. RS232 Port: For remote monitoring Software via RS232. SNMP Adapter: For remote monitoring of static inverter system via LAN. Battery Earth Leakage: Detects leakage current between either pole of the battery and earth and displays milliamp reading and alarm if leakage current is too high. AC output Earth Leakage protection: Can be set to 30/100/300mA depending on application. Three phase monitoring: Detects a phase failure causing inverter to start (non-maintained operation only). Charger input display: Amps / KVA / % Load Fire Alarm Interface / Test input: Requires presence of a 24V DC signal either from remote fire alarm panel or remote test facility. When 24V healthy system operates as normal. When 24V signal is lost then inverter starts up and supplies the load (non-maintained systems only). High IP rating: Up to IP55 maximum. s
MAINS INPUT Remote Mounted Options 6 RAU: Remote alarm unit, which can be connected up to 100 meters away by 4-core cable for remote monitoring of system. Consists of LED display with audible alarm and silence button. SIM240: In installations where the normal mains luminaire is to be energised from the static inverter under mains fail/emergency conditions then it is necessary to introduce a changeover relay/contactor for the two incoming supplies (mains and static inverter supply). Mains luminaires can be converted integrally or, if insufficient room internally, a remote version is available. Alternatively, a power relay/contactor can be installed to switch several luminaires together. LIVE EARTH Static Inverter Changeover Relay, SIM240 230V, 50Hz AC INPUT FROM STATIC INVERTER NEUTRAL LIGHT SWITCH L E N SW. L UNSW. L E N RELAYS & ELECTRONIC CONTROL CIRCUIT SIM240 (Circuit shown in 'Mains Input Healthy' mode) Typical Schematic of Remote Power Relay / Contactor for switching of multiple luminaires External Light Switch (Supplied & Fitted by Others) 8 L1A 3 L4A Fuse 9 K1 / 1 UNSWITCHED SUPPLY FROM LOCAL DISTRIBUTION BOARD MAINS / EMERGENCY LUMINAIRES CIRCUIT K1 CONTACTS CIRCUIT SHOWN IN N4A 1 SUPPLY FROM STATIC INVERTER CIRCUIT 2 7 Remove Link For Double Pole Switching 6 5 4 E N1A L2A N2A DE-ENERGISED STATE IMPORTANT NOTE: Contacts must be rated to 440V RMS minimum to cater for worst case scenario of mains and static inverter supplies in anti-phase. K1 / 2 L3A N3A 11 12 10 L E N Mains Only Luminaires 230V, 50Hz AC OUTPUT TO EMERGENCY LUMINAIRES DIMMING CONTROL s
7 Sub Circuit Monitor - Monitors mains lighting circuits and provides a signal to the static inverter unit in the event of a mains lighting circuit failure. Normally for non-maintained systems or on the non-maintained circuit of dual output systems, but can also be used for maintained systems that operate in the nonmaintained mode by controlling the maintained circuit. Non load switching. Units are available to monitor single, 4, 8 or 12 sub circuits. A keyswitch can be fitted if required to enable simple testing by an authorised user. Hold Off Relay Monitors Monitors mains lighting circuits and are used to hold off the maintained output from the static inverter unit, providing non-maintained luminaire operation. In the event of a mains lighting circuit failure the contactor drops out, allowing the maintained supply to energise the emergency luminaires. Units are available to monitor single, 4, 8 or 12 sub circuits. A keyswitch can be fitted if required to enable simple testing by an authorised user. These are load switching devices. System Selection Table 1-Hour Systems System Type KVA Rating KW Rating Enclosure Compact SI 2.6KVA 1-Hour 2.6 2.2 SB N/A COMPACT SI 5.6KVA 1-Hour 5.6 4.75 SB N/A COMPACT SI 8.0K 1-Hour 8.0 6.8 SD N/A COMPACT SI 10.0K -Hour 10.0 8.5 SD SD COMPACT SI 12.0K 1-Hour 12.0 10.2 SD SD COMPACT SI 16.0K 1-Hour 16.0 13.6 SD SD COMPACT SI 20.0K 1-Hour 20.0 17.0 SD SD COMPACT SI 24.0K 1-Hour 24.0 20.4 SD SD Additional Batteries Enclosure COMPACT SI 32.0K 1-Hour (3 Phase input only) 32.0 27.2 SD 2 x SD 3-Hour Systems COMPACT SI 1.0K 3-Hour 1.0 0.85 SB N/A COMPACT SI 2.0K 3-Hour 2.0 1.7 SB N/A COMPACT SI 3.2K 3-Hour 3.2 2.7 SD N/A COMPACT SI 4.8K 3-Hour 4.8 4.1 SD N/A COMPACT SI 5.6K 3-Hour 5.6 4.75 SD N/A COMPACT SI 8.0K 3-Hour 8.0 6.8 SD N/A COMPACT SI 10.0K 3-Hour 10.0 8.5 SD SD COMPACT SI 12.0K 3-Hour 12.0 10.2 SD 2 x SD COMPACT SI 16.0K 3-Hour 16.0 13.6 SD 2 x SD COMPACT SI 20.0K 3-Hour 20.0 17.0 SD 2 x SD COMPACT SI 24.0K 3-Hour 24.0 20.4 SD 3 x SD COMPACT SI 32.0K 3-Hour (3 Phase input only) 32.0 27.2 SD 4 X SD Notes: 20% Overcapacity included in above table in compliance with BS EN 50171. Load Power Factor no better than 0.85 is assumed Sizes subject to change without notice s
8 Systems have been designed and sized to make maximum use of the batteries. Single or three phase input must be specified when ordering. NB: On systems with three phase input, the maintained circuit is supplied by only one of the three input phases (usually L3/Blue Phase), however, the charger is true three-phase. System & Installation Considerations Room Ventilation Negligible amounts of hydrogen are generated under normal operating conditions, however, adequate ventilation should be provided to prevent potentially explosive levels of gases from building up. The system will generate a small amount of heat during (passive) standby operation, but during battery discharge and recharge a greater amount of heat will be generated. It is therefore necessary to provide adequate ventilation in order to keep the room cool and to ensure that the battery temperature does not rise significantly. Optimum battery operating life and performance is achieved at an ambient temperature of 20C ±5C, i.e. a temperature range of 15 to 25C. Ventilation should be designed to draw fresh, cool air in at low level and exhaust at high level. Warning Notices These should be displayed on entry doors to static inverter/battery rooms, e.g. BATTERY ROOM. EXTINGUISH ALL NAKED LIGHTS BEFORE ENTERING. NO SMOKING. Environment The room must be kept dry and free from dirt and dust at all times. Rating of System When calculating the VA and Watts rating of the static inverter it is important to ensure that the actual power consumption of each luminaire is used and not the lamp rating, i.e. the efficiency of the luminaire is taken into account. When a total load figure is achieved then spare capacity should be added in order to cater for future expansion and/or on-site amendments to the lighting design. In order to maximise the quantity of luminaires that can be connected to the static inverter their power factor should be 0.85 or higher. Modern fluorescent luminaires utilising high frequency control gear are ideally suited as they generally have power factors approaching unity. Types of Lighting Static inverter systems operating in passive standby mode are suitable for most forms of fluorescent and incandescent lighting. However, they are not suitable for discharge lighting (SON, metal halide, etc) due to the fact that when the mains supply is interrupted for only a very short period of time (typically this can be as short as 5 or 10 milliseconds) they usually have to cool down before they are able to re-strike. The changeover time of a passive standby inverter is generally too long to support this form of lighting. Also, discharge lamps normally have a warm-up period before achieving full brightness. For these reasons discharge lighting is not recommended for use as emergency lighting, however, they can be used as long as they are supplementary to a normal emergency lighting installation. We are able to supply ON-LINE or NO-BREAK static inverter systems to support combined fluorescent, incandescent and discharge lighting schemes. Glow Starters Important Note: BSEN60598-2-22 prohibits the use of glow starters in fluorescent luminaires used for emergency lighting. Multiple Use of Systems Important Note: Systems specified for emergency lighting use should not have other services connected to them. TECHNICAL SPECIFICATION Charger Mains Supply: 230/400V ±10% Single or Three Phase, 50 or 60Hz ±5% Power Factor: 0.99 during recharge. Input Protection: MCB to BS EN 60898 Fusegear: gr to IEC 60269-1 and -4, DIN VDE 0636-23. Charge Regime: Temp. Compensation: Protection: Technology: Constant voltage, current limited. Battery float voltage controlled to ±1% with mains fluctuations as stated above. Battery recharged to achieve 80% autonomy after 12-hours and full autonomy within 24-hours. ±3mV/C/Cell. Battery over-voltage, mains input low & input surge. Full wave controlled thyristor/diode bridge with IGBT power factor correction. Micro-processor controlled. s
9 Inverter Voltage: 220/230/240V AC (default setting at 230V) single-phase. Other voltages available on request. Voltage Regulation: Voltage Waveform: ±1% Static, ±6% Dynamic. Sinusoidal. Frequency: 50 or 60Hz ±0.1% Distortion (THD): Load Power Factor: Overload: Efficiency: Synchronising: Protection: Technology: <3% into linear load. 0.3 lag to 0.3 lead. 120% continuous, 121% for 2-minutes, 160% for 5-seconds without reduction in output voltage. Once these levels are exceeded the output voltage will be reduced to maintain constant power until inverter under-voltage level is reached. 80 to 93% depending on inverter rating and load applied. Inverter synchronises with mains before contactor changeover. Electronic overload, short-circuit, over-temperature, inverter over/under-voltage, DC input reverse polarity & battery low voltage shutdown (battery deep discharge protection). High frequency, pulse width modulated IGBT with isolation transformer. Battery Type: 10-year design life valve regulated lead acid (VRLA). Changeover Contactor Fusegear: Double pole gr to IEC60296-1 and -4, DIN VDE 0636-23 Standard: To the relevant requirements of BS 5424. Enclosure Type: Floor standing on raised plinth. Degree of Protection: Finish: Cable Entry: Cable Termination: IP23 (up to IP55 maximum details on request). Textured epoxy/polyester powder coat, colour light grey RAL 7032 Top DIN rail mounted, screw clamp type. General Noise Level: <55dBA @ 1-metre distance and height. Max Relative Air Humidity: Maximum Altitude: Operating Temperature Range: Recommended Operating Temperature Range: 90%, non-condensing. 1000-metres ASL before de-rating. 0 to 40C Standards System Complies With: BS EN 50171:2001 20C ±5C for optimum battery performance and life. BS EN 50091-1 (Safety) BS EN 50091-2 (EMC) BS EN 61000-3-4 (Harmonics) s