Group: Langley Holdings plc
Catalog excerpts
Selection guide - Low Voltage
Open the catalog to page 1Content Generator applications Rating definition Operating conditions Connections ODP generators: MXB - MJB | 50 Hz 2. Standard winding 6 poles (rating: 380 - 400 - 415 V) 3. Standard winding 8 poles (rating: 380 - 400 - 415 V) 4. Single phase - parallel star - std. winding 4 poles (rating: 190 - 200 - 208 V) 5. Single phase - zig-zag - std. winding 4 poles (rating: 220 -230 V) TEAAC generators: MJV | 50 Hz TEWAC generators: MJR | 50 Hz 1. 4 poles (rating: 380 - 400 - 415 - 440 V) ODP generators: MXB - MJB | 60 Hz 1. Standard winding 4 poles (rating: 380 - 416 - 440 - 460 - 480 V) 2....
Open the catalog to page 2Key TEWAC Totally Enclosed Water to Air Cooled ODP Open Drip Proof TEAAC Totally Enclosed Air to Air Cooled
Open the catalog to page 3Operating conditions Rating definition Prime rating Prime rating is the maximum power available at a variable load for an unlimited number of hours. Marelli Motori low voltage generators are class H insulated as a standard feature. Under these conditions three different classes of temperature rise are allowed and are here below represented as over-temperature above the reference ambient temperature (ref. amb. Temp. is 40°C as defined in IEC 60034): Class B temperature rise: generator can reach a temperature rise of 80° above 40° ambient temperature. Class F temperature rise: generator can...
Open the catalog to page 4Overloads The nominal power factor is 0,8 lagging. For different power factor values the following derating factors must be applied. This overloads must be occasional and followed by one hour of running at normal load or less. Stand-by ratings are based on conti-nuos supply of loads for any utility power failure. No overloads are allowed in stand-by duty. 10% for 1 hour Overload during S1 15% for 10 minutes continuous duty 30% for 4 minutes Single phase operation MXB The rated outputs of MXB three-phase (12-wire) wound generators, when reconnected for single phase operation, can be obtained...
Open the catalog to page 512 Leads / Winding code M0 Voltages L-L Voltages Frequency Series Delta (High Delta) Voltages Frequency Series Star (High Wye) Key * Voltage not available on MJB 400 frame - neutral not available
Open the catalog to page 6Key * voltage not available on MJB355MB4, MJB400MB4 - neutral not available (l) Voltage not availabe on MXB generators
Open the catalog to page 76 Leads / Winding code 17 - 80 Voltages
Open the catalog to page 8ODP Generators MXB - MJB - Standard winding 4 poles (1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 10(1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 11ODP Generators MXB - MJB - Standard winding 4 poles (1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 12(1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 13ODP Generators MXB - MJB - Standard winding 6 poles
Open the catalog to page 14ODP Generators MXB - MJB - 4 poles - Single phase - parallel star - std. winding (1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 16(1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 17ODP Generators MXB - MJB - 4 poles - Single phase - parallel star - std. winding (1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 18(1' Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 19ODP Generators MXB - MJB - 4 poles - Single phase - zig-zag - std. winding MXB - MJB - 4 POLES - single phase 50 Hz (1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 20TEAAC Generators MJV - LV 4 poles
Open the catalog to page 22TEAAC Generators MJV - LV 6 poles
Open the catalog to page 24Continuous duty rating kVA @ Temp. rise over 40 °C ambient temp. 125 AT 105 AT
Open the catalog to page 25TEWAC Generators MJR - LV 4 poles Continuous duty rating kVA @ Temp. rise over 40 °C ambient temp. 125 AT 105 AT
Open the catalog to page 26Continuous duty rating kVA @ Temp. rise over 40 °C ambient temp. 105 AT Cl. F
Open the catalog to page 27TEWAC Generators MJR - LV 6 poles
Open the catalog to page 28ODP Generators MXB - MJB - Standard winding 4 poles standard winding Moment of Inertia Weight Continuous duty rating Efficiency (1) Stand-by duty rating kVA @ Temp. rise over 40 °C ambient temp. 125 AT 105 AT 80 AT (1' Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 30(1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 31ODP Generators MXB - MJB - Standard winding 4 poles (1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 32(1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 33ODP Generators MXB - MJB - Standard winding 4 poles (1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 34ODP Generators MJB - Standard winding 6 poles MJB - 6 POLES 460 V standard winding Continuous duty rating kVA @ Temp. rise over 40 °C ambient temp. Stand-by duty rating Moment of Inertia Weight J
Open the catalog to page 36ODP Generators MJB - Standard winding 8 poles
Open the catalog to page 38MJB - 4 POLES380 V dedicated winding R3 Leads Continuous duty rating kVA @ Temp. rise over 40 °C ambient temp.
Open the catalog to page 39ODP Generators MXB - MJB - 60 Hz dedicated winding
Open the catalog to page 40ODP Generators MXB - MJB - 4 poles - Single phase - parallel star - std. winding (1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 42(1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 43ODP Generators MXB - MJB - 4 poles - Single phase - parallel star - std. winding (1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 44(1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 45ODP Generators MXB - MJB - 4 poles - Single phase - parallel star - dedicated winding
Open the catalog to page 46(1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 47ODP Generators MXB - MJB - 4 poles - Single phase - zig-zag - std. winding (1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 48(1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
Open the catalog to page 49ODP Generators MXB - MJB - 4 poles - Single phase - zig-zag - std. winding (1) Value referred to continuous duty rating / 125 AT / Temperature rise class H
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