Powerful solutions for cooling towers and air cooled condensers Solutions performantes pour aéroréfrigérants et condensateurs à air Leistungsstarke Lösungen für Kühltürme und Luftkondensatoren Potentes soluciones para torres de refrigeración y condensadores de aire

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SECTION A - SECTION A - TEIL A - SECCIÓN A Air cooled condenser drives Contents Commande des ventilateurs des condensateurs à air Index Antriebsgruppen für Luftkondensatoren Inhaltverzeichnis Las transmisiones del ventilador de los condensadores de aire Índice SECTION B - SECTION B - TEIL B - SECCIÓN B Cooling tower drives Contents Commande des ventilateurs pour aéroréfrigérants Index Antriebsgruppen für Kühltürme Inhaltverzeichnis Las transmisiones del ventilador para torres de refrigeración Índice

AIR COOLED CONDENSER DRIVES AIR COOLED CONDENSER DRIVES Hansen M4 ACC standardized gear units Programme - Selection Description Selection Request for quotation Accessories and options Rating tables Mechanical power ratings and rated thrust load Exact ratio's iex and moments of inertia J Thermal power ratings Dimensional drawings Hansen M4 ACC gear units without oil filter Hansen M4 ACC gear units with oil filter Hansen P4 standardized gear units Programme - Selection Description Selection Request for quotation Accessories and options Rating tables Mechanical power ratings and rated thrust load...

PROGRAMME - SELECTION STANDARDISED GEAR UNITS FOR AIR COOLED CONDENSER DRIVES Standardised gear units for Air Cooled Condenser Drives PROGRAMME - SELECTION Motor Power

HANSEN M4 ACC GEAR UNITS Hansen M4 ACC gear units for Air Cooled Condenser Drives FOR AIR COOLED CONDENSER DRIVES P : Hansen M4 V : vertical low speed shaft P : parallel shafts Size : DA-> FX number of stages: 2 Ratio 10 : nominal ratio of the gear unit Drive package 11 : K: lantern drive package Motor 12 : motor size and number of poles Shaft arrangement 7 : high speed shaft extension : U : up 8 : low speed shaft extension : D : down 9 : low speed shaft type : N : normal solid shaft The gear unit Units are designed to comply with the standard CTI-111 specifications for gear units. The mechanical...

HANSEN M4 ACC GEAR UNITS FOR AIR COOLED CONDENSER DRIVES The gear units are to be fitted with standard flange mounted IEC motors (type B5). For more information on motors, refer to motor catalogues. For Nema motors, refer to us. Use of two speed motors: when changing speed with two speed motors, the motor has to be slowed down below the low speed, be- Standard protection systems • As a standard, Hansen M4 ACC gear units are provided with a painting system that is suitable to be applied in the atmosphericcorrosivity category “C4 (L)” according to ISO 12944-2 (and ISO 12944-5). The choice of colour...

Mechanical power rating Mechanical power rating / Air Cooled Condenser Drives AIR COOLED CONDENSER DRIVES Reference Data SELECTION DATA refer to page A7 Mechanical power rating P Start-up torque TS Check if Mechanical torque of the gear unit (kNm) Design total start-up time @ 1500 min-1 (hrs) (tS @ 1500) Design total start-up time @ 1500 min-1 refers to the total start-up time over the design lifetime of the gear unit, taking into account: - number of start-ups - duration of a single start-up - input speed equal to 1500 min-1 Note: make sure that Ts, T and n refer to the same shaft (speed); Total...

SELECTION Thermal power rating Thermal power rating / Air Cooled Condenser Drives AIR COOLED CONDENSER DRIVES Reference Data Thermal check Ptn for gear unit without forced cooling No forced cooling required Ptf for gear unit with 1 fan factor a for ambient temperature without forced cooling Reduction factor b for duration of service h/year factor c for air circulation (without fan) Mounting Indoors- small enclosure Indoors- normal working areas Outdoors- protected against sun Air flow to be selected according to the structure: Open structure: gear units installed in an open steel frame structure...

AIR COOLED CONDENSER DRIVES Air Cooled Condenser Drives Ref : Motor power Absorbed power Absorbed torque Running time in h/day Peak torque in excess of 200% Ta Number of starts/stops per 10 hours : Selection of corrosion category: tick where appropriate tick where appropriate Corrosion category according to ISO 12944-2 High speed shaft (HSS) Constant speed(s) Variable speed Constant speed(s) Variable speed tick where appropriate Corrosion category according to ISO 12944-2 Parallel shafts Not allowed 4. THRUST LOAD ON LOW SPEED SHAFT Aerodynamic thrust load away from gear unit Mandatory (minimum...

Sketch of application TOP VIEW

COMMANDE DES VENTILATEURS DES CONDENSATEURS A AIR COMMANDE DES VENTILATEURS DES CONDENSATEURS A AIR Réducteurs standard Hansen M4 ACC Programme - Sélection Description Sélection Demande d'offre Accessoires et options Tables de sélection Puissances mécaniques nominales et charge axiale nominale Rapports de réduction exacts iex et moments d'inertie J Puissances thermiques nominales Plans d'encombrement Réducteurs Hansen M4 ACC sans filtre d'huile Réducteurs Hansen M4 ACC avec filtre d'huile Réducteurs standard Hansen P4 Programme - Sélection Description Sélection Demande d'offre Accessoires et...