Nidec Leroy-Somer TAL 049

The Best of Performance

The Nidec Leroy-Somer TAL 049 alternator is designed to deliver optimal power generation performance. Its meticulous design and optimized architecture achieve a balance between compactness, reliability, performance, and longevity. The TAL 049 adapts to various applications and situations.

Standards

The Nidec Leroy-Somer TAL 049 alternator complies with key international standards and regulations, including IEC 60034, NEMA MG 1.32-33, ISO 8528-3, CSA C22.2 n°100-14, and UL 1446 (UL 1004 on request). It is also compliant with IEC 61000-6-2, IEC 61000-6-3, IEC 61000-6-4, VDE 0875G, VDE 0875N, and EN 55011 (group 1 class A for the European zone). The TAL 049 can be integrated into EC-marked generator sets and bears EC, EAC, and CMIM markings. It is designed, manufactured, and marketed under an ISO 9001 and ISO 14001 quality assurance environment.

Electrical Characteristics and Performances

• Class H insulation
• Shunt excitation
• Low voltage winding: Three-phase 50 Hz: 220V - 240V and 380V - 415V (440V); 60 Hz: 208V - 240V and 380V - 480V
• 6-terminal plates in 6-wire version, or suitable for 12-wire option
• Optimized performance

Excitation and Regulation System

* Only with AREP+ or PMG

Protection System and Options

• Degree of protection: IP 23
• Complete winding protection for non-harsh environments with relative humidity ≤ 95%
• Options:
  • Three-phase 12-wire with 7-terminal plates
  • AREP+ or PMG excitation
  • ULc/us
  • Customized painting (unpainted machine as standard)
  • Space heater
  • Droop kit for alternator paralleling
  • Stator sensors
  • Reinforced winding protection for harsh environments and relative humidity greater than 95% (system 2 - 4 without derating)

Mechanical Construction

• Compact and rugged assembly to withstand engine vibrations
• Steel frame
• Cast iron flanges and shields
• Single-bearing design suitable for most diesel engines
• Greased for life bearings
• Standard direction of rotation: clockwise when looking at the drive end view (for anti-clockwise, derate the machine by 5%)

Terminal Box Design

• Easy access to AVR and terminals
• Standard terminal box with possibility of mounting measurement CTs
• Possibility of current transformer for parallel operation

General Characteristics

Ratings 50 Hz - 1500 R.P.M. (kVA/kW - P.F. = 0.8)

(*) 12-wire option

Ratings 60 Hz - 1800 R.P.M. (kVA/kW - P.F. = 0.8)

(*) 12-wire option

Efficiencies 400 V - 50 Hz

Efficiency curves for TAL 049 alternators at 400V/50Hz, showing efficiency percentage against kVA load for Power Factor 0.8 (solid line) and Power Factor 1.0 (dashed line). Graphs are provided for models TAL 049 B, C, D, and E.

Reactances (%). Time constants (ms) - Class H / 400 V

Other Class H / 400 V Data

* P.F. = 0.6

Transient Voltage Variation 400 V - 50 Hz

Transient voltage variation graphs illustrating voltage drop/rise percentage against kVA load for phase loading, load shedding, and motor starting under SHUNT and AREP+ excitation systems. The Y-axis shows voltage drop/rise in percentage, and the X-axis shows kVA load. Curves are labeled B, C, D, E corresponding to different TAL 049 models.

Notes: For a starting P.F. other than 0.6, the starting kVA must be multiplied by K = Sine P.F. / 0.8. For voltages other than 400V (Y), 230V (Δ) at 50 Hz, then kVA must be multiplied by (400/U)² or (230/U)². Transient performance of the PMG option requires consultation.

Efficiencies 480 V - 60 Hz

Efficiency curves for TAL 049 alternators at 480V/60Hz, showing efficiency percentage against kVA load for Power Factor 0.8 (solid line) and Power Factor 1.0 (dashed line). Graphs are provided for models TAL 049 B, C, D, and E.

Reactances (%). Time constants (ms) - Class H / 480 V

Other Class H / 480 V Data

* P.F. = 0.6

Transient Voltage Variation 480 V - 60 Hz

Transient voltage variation graphs illustrating voltage drop/rise percentage against kVA load for phase loading, load shedding, and motor starting under SHUNT and AREP+ excitation systems. The Y-axis shows voltage drop/rise in percentage, and the X-axis shows kVA load. Curves are labeled B, C, D, E corresponding to different TAL 049 models.

Notes: For a starting P.F. other than 0.6, the starting kVA must be multiplied by K = Sine P.F. / 0.8. For voltages other than 480V (Y), 277V (Δ), 240V (YY) at 60 Hz, then kVA must be multiplied by (480/U)² or (277/U)² or (240/U)². Transient performance of the PMG option requires consultation.

3-Phase Short-Circuit Curves

These graphs show the 3-phase short-circuit current behavior at no load and rated speed (star connection Y). The Y-axis represents current in Amperes, and the X-axis represents time in milliseconds. Symmetrical (solid line) and Asymmetrical (dashed line) conditions are shown for SHUNT and AREP+ excitation systems for models TAL 049 B, C, D, and E.

Influence due to short-circuit: Curves are based on a three-phase short-circuit. For other types of short-circuit, use the following multiplication factors:

Single-Bearing Dimensions and Weight

Dimensional diagram showing the physical layout and key measurements of the TAL 049 alternator for single-bearing configurations. It includes overall length (L), width (LB), height (AH), and other critical dimensions, with labels for air inlet/outlet, terminal access, and mounting points.

* L maxi = LB + AH maxi + 15.5

Flange (mm)

Torsional Analysis Data

Diagram illustrating the rotor and shaft configuration, indicating key points for torsional analysis. It shows diameters and positions relevant to calculating moments of inertia.

NOTE: Dimensions are for information only and may be subject to modifications. The torsional analysis of the transmission is imperative. All values are available upon request.