ATS l AU AUTOMATIC TRANSFER SWITCH

ATS l AU AUTOMATIC TRANSFER SWITCH

MASCHINENBAU HALBERSTADT GROUP, building on its 60 years legacy in power generation, introduces a novel design of Automatic Changeover Switch ideally suited for quick, safe and reliable transfer of load between two energy supply sources automatically. INDEX POWER GENERATION 1 MAIN APPLICATION 2 GENERAL CHARACTERISTICS 3 ATS CONTOLLER 6 MANUAL OPERATION 10 DIMENSIONS 12 CATALOG NO. 16

www.mbhelectric.de POWER GENERATION EXPERTISE Several decades of experience and contribution to power generation technology have allowed Maschinenbau Halberstadt GmbH to conceptualize and tailor the ideal low voltage transfer switch that enables: Quick, safe and reliable transfer. Secure isolation. Minimum energy consumption. Minimizing downtime and service continuity. 1

MBH ELECTRIC AU AUTOMATIC TRANSFER SWITCH MAIN APPLICATIONS The transfer switch serves as an equipment to transfer load supply service between two sources. Utility to Generator For application with single utility feeder and a standby generator source. The transfer switch senses loss or abnormality in utility voltage then issues a remote start signal to the standby generator and transfers the load. Load is transferred back under normal utility conditions. LOAD Generator to Generator For application in a power system with multiple site generators. Load is transferred to secondary generation in the events of failure or scheduled maintenance. LOAD Utility to Utility For application with multiple utility feed. Transfer from one source to another is enabled in case of scheduled maintenance of source failure. LOAD Multiple Source System Multiple Source Systems may include multiple redundant utility feeds and/or multiple standby generators. Load is transferred to standby source in the event of utility (ies) failure in the case of multiple utility feeds. Load transfer to secondary generator is accomplished following the failure of both utility and standby generators. LOAD 2

www.mbhelectric.de GENERAL CHARACTERISTICS The ATS is intended for use in low voltage power networks in order to reduce and virtually eliminate outage periods of critical loads. The ATS ratings range from 100A to 3000A to cover the widest range of industrial, commercial and residential needs. MBH AU s unique design is optimized to ensure personnel safety, equipment protection and virtually eliminating outages thus combining safety, reliability and fast response. It is widely trusted to maintain service of critical and non-critical processes online at all time to enhance our client s manufacturing capabilities. Extended product lifetime through minimization of arcing time. On-Load Switching. Manual Bypass Capabilities. Dual switching strategies: 3 Stable switch positions (Main Source, Neutral, Emergency Source). Main Emergency or Main Neutral Emergency. Individual phase enclosure and arc chamber to improve breaking capacity. Enhanced main contact protection & breaking capacity. Easy to maintain. High transfer capabilities for inductive and motor loads. Safety All phases are fully insulated, each in its unique structure. The breaking chambers are fully enclosed to prevent contact with any live parts caused by insulation degradation following an arcing event. Safe conductive performance is ensured by applying adequate contact pressure at all times during operation. Compact Design The compact and unique design allows for switching between main source and emergency source through the use of one coil. The uniquely structured arc shute reduces the arc breaking time leading to longer contact lifetime. Stable breaking is ensured by the use of a breaking spring for tripping operations. Low loss and low energy consumption due to the application of instantaneous excitation mode. Both direct source transfer and transfer through neutral stable position are possible. Arc Chamber 3

MBH ELECTRIC AU AUTOMATIC TRANSFER SWITCH AU Technical Description AC 23B AC 23B AC 23B AC 23B 4

www.mbhelectric.de AC 23B AC 23B AC 23B AC 23B AC 23B 5

MBH ELECTRIC AU AUTOMATIC TRANSFER SWITCH AUC 173 DIN RAIL MOUNTED Features DIN Rail mounted. No DC supply required. Adjustable MCB and GCB delays. 10A/250VAC MCB and GCB outputs. 10A/28VDC/250VAC remote start output. Isolated mains and genset inputs. Inputs R-S-T: Mains phase voltages. G: Generator phase voltage. NEUT-MN: Mains neutral terminal. NEUT-GN: Generator neutral terminal. Outputs MCB-MAINS Contactor: Normally open relay output connecting the phase-r voltage to the terminal. (10A@250V-AC) Remote Start: Normally open engine start request relay output. (10A@28V-DC/250V-AC) GCB-Generator Contactor: Normally open relay output connecting the phase-g voltage to the terminal. (10A@250V-AC) Technical Specifications Alternator Voltage: 170-300 V-AC (Ph-N). Mains Voltages: 170-300 V-AC (Ph-N). MCB Relay Output: 10A @ 250V-AC. GCB Relay Output: 10A @ 250V-AC. Maximum humidity: 95% noncondensing. Dimensions: 70x115x66mm (WxHxD). Weight: 180g (approx.). Installation: DIN Rail mounted. IP Protection: IP20. Conformity (EU directives). 2006/95/EC (low voltage). 2004/108/EC (EMC). Norms of reference: Generator Contactor Delay: 1 to 40 sec. adjustable. Mains Return Delay: 1 to 40 sec. adjustable. Remote Start Relay Output: 10A @250V-AC/28V-DC. Operating temp.: -30 C (-22 F) to 70 C (158 F). Storage temp.: -30 C (-22 F) to 80 C (176 F). Case Material: High Temp. ABS/PC (UL94-V0). EN 61010 (safety requirements). EN 61326 (EMC requirements). 6

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MBH ELECTRIC AU AUTOMATIC TRANSFER SWITCH AUC 329 ATS CONTROLLER WITH MULTIPLE GENSET SUPPORT Features Automatic contactor control. Built in alarms and warnings. Statistical counters. 3 level password system. Field adjustable parameters. RS-232 serial port. Synchroscope & check synch. No break transfer & no break load test. Multiple genset system support. Electrical protections for genset. Load shedding, dummy load. Periodic maintenance request indicator. Built in daily / weekly / monthly exerciser. Event logging with time stamp and measurements. Battery backed-up real time clock. Weekly operation schedule programs. Firmware downloadable from serial port. Free MS-Windows Remote monitoring SW: Local and modem connection. Monitoring, download of parameters. Modem networking. GSM and PSTN modem support. GSM SMS message sending on fault. MODBUS communications. Graphic LCD display (128x64 pixels). User friendly graphic indicators. Triple language support. Customer logo display capability. Configurable digital inputs: 7. Configurable digital outputs: 2. Total digital outputs: 6. I/O expansion capability. Survives cranking dropouts. Sealed front panel. Plug-in connection system for easy replacement. Inputs The unit has 7 configutable digital inputs. Each input has following programmable parameters: Alarm type: shutdown / load-dump / warning / no alarm. Alarm polling: on engine running / always / on mains OK. Latching / non-latching operation. Contact type: NO / NC. Switching: BAT+ / BAT. 8

www.mbhelectric.de Outputs The unit provides 6 digital outputs and 2 of them have programmable functions, selectable from a list. Any function or alarm condition may be output as a relay output. Using two Relay Expansion Modules, the number of relays may be increased to 22, 16 of them being volt-free contacts. Alternator voltage: 0 to 300 V-AC (Ph-N). Alternator frequency: 0-100 Hz. Mains voltage: 0 to 300 V-AC (Ph-N). Mains frequency: 0-100 Hz. DC Supply Range: 9.0 to 30.0 V-DC. Typical Standby Current: 100 ma-dc. DC Outputs: 1A @ 28V. Weight: 300 g (approx). Conformity (EU directives). 2006/95/EC (low voltage). Norms: EN 61010 (safety requirements). Cranking dropouts: survives 0 V for 100ms. Maximum Operating Current: 200 ma-dc. (Relay outputs open) Generator/Mains Contactor Relay Outputs: 16 A / 250V. Current inputs: from CTs,.../5A. Max load 0.7VA per phase. Serial port: RS-232, 9600 bauds, no parity, 1 bit stop. Operating temperature: -20 C (-4 F) to 70 C (158 F). Storage temperature: -40 C (-40 F) to 80 C (176 F). Maximum humidity: 95% non-condensing. Dimensions: 165 x 125 x 48 mm (WxHxD). Panel Cut-out Dimensions: 151x111 mm minimum. Case Material: High Temperature ABS/PC (UL94-V0). IP Protection: IP65 from front panel, IP30 from the rear. 2004/108/EC (electro-magnetic compatibility). EN 61326 (EMC requirements). 9

MBH ELECTRIC AU AUTOMATIC TRANSFER SWITCH MANUAL OPERATION Manual operation is made feasible through the use of a handle connected to the side of the ATS and by making use of a metal pin to control source selection and tripping. Manual Bypass to Source A Source A: ON Manual Bypass to Source B Source B: ON Trip Source A: OFF Source B: OFF CAUTION: ATS Manual operation should be carried out under no load conditions and after careful inspection of live parts. 10

www.mbhelectric.de OPERATING CONDITIONS Ambient Conditions Avoid installation in humid areas, locations with risk of exposure to poisonous gas and high temperature places. Orientation The ATS is designed to be installed in a specific direction as highlighted in the figure. The ATS feature and performance may be subject to variation if the installation orientation changes. Ideally, the ATS should be installed so as the nameplate can be read properly facing the front and without any twist or bending of any ATS components. Control Circuit Connection Use low voltage control/power cable with sufficient length. In case of DC supply, make sure to take into consideration battery and charging characteristics. Main Circuit Connection Connect firmly by selecting appropriate wire sizes and solderless terminals. Avoid applying excessive stress to the main circuit terminal. Maintenance & Inspection Conduct maintenance and inspection at regular cycles in order to maintain the ATS performance. Recommended NOT Recommended 11

MBH ELECTRIC AU AUTOMATIC TRANSFER SWITCH AU DIMENSIONS AU 100A - AU 200A (Front) Type 3P 4P A 234 264 B 133 163 AU 400A (Front) Type 3P 4P A 287 338 B 192 243 12

www.mbhelectric.de AU 600A - AU 1000A (Front) AU600 AU800 AU1000 3P 4P 3P 4P 3P 4P A 340 400 400 480 400 480 B 224 284 284 364 284 364 C 220 220 239 239 239 239 D 30 30 31 31 31 31 E 40 40 40 40 50 50 F 20 20 40 40 30 30 G 60 60 80 80 80 80 H 5 5 8 8 10 10 I 36 36 42 42 42 42 J 60 60 54 54 56 56 K 248 248 267 267 267 267 L 58 58 80.5 80.5 79.5 79.5 M 53 53 63 63 63 63 13

MBH ELECTRIC AU AUTOMATIC TRANSFER SWITCH AU 1200A - AU 1600A (Front) AU1200 AU1600 3P 4P 3P 4P A 452.7 535.7 452.7 535.7 B 328 411 328 411 C 419.4 419.4 419.4 419.4 D 534.4 534.4 534.4 534.4 E 50 50 50 50 F 27 27 27 27 G 33 33 33 33 H 83 83 83 83 I 94.5 94.5 94.5 94.5 J 25 25 25 25 K 12 12 12 12 L 69 69 69 69 M 55 55 55 55 N 153.7 153.7 153.7 153.7 14

www.mbhelectric.de AU 2000A (Back) AU1200 3P 4P A 527.7 635.7 B 403 511 C - - D - - E 75 75 F 40 40 G 33 33 H 108 108 I 107 107 J - - K 15 15 L - - M - - N 152.2 152.2 15

MBH ELECTRIC AU AUTOMATIC TRANSFER SWITCH AU 3000A (Back) AU3000 3P 4P A 602.7 735.7 B 478 611 C 25 25 D 142.2 142.2 CATALOG NO. AUTOMATIC TRANSFER SWITCH Model AU Automatic Changeover Switch Switch Type S Standard AC Installation F Front Connection B Back Connection Controller c1 AUC 329 c2 AUC 173 Poles 3 3P 4 4P Supply voltage (shunt trip) 220 220V 110 110V Current Rating 0100 100A 1200 1200A 0200 200A 1600 1600A 0400 400A 2000 2000A 0800 800A 2500 2500A 1000 1000A 3000 3000A Enclosure ** Protection Index 16 ** Specify Protection Index

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