Nidec Lsah 44.3 Alternator Installation Guide (+ PDF)

Contents hide

1 LSAH 44.3 Alternator

2 Product Information

2.1 Main Features

2.2 Standards

2.3 Protection System and Options

3 Product Usage Instructions

4 Documents / Resources

4.1 References

LSAH 44.3 Alternator

Product Information

The LSAH 44.3 is an alternator designed for cogeneration
installations. It has a power output range of 40 to 75 kVA at 50 Hz
and 50 to 94 kVA at 60 Hz. The alternator is equipped with both
electrical and mechanical data for efficient operation.

Main Features

Built-in coolant circuit for optimized heat recovery
Direct integration with larger installations
Suitable for continuous service connected to the national
grid
Compatible with oil and gas applications
Highly performant and durable construction

Standards

The LSAH 44.3 alternator complies with industry standards for
electrical characteristics and performances.

Protection System and Options

The alternator is equipped with a protection system to ensure
safe operation. It also offers additional options for customization
and enhanced functionality.

Product Usage Instructions

To use the LSAH 44.3 alternator, follow these steps:

Ensure that the installation is compatible with the power
output range of the alternator (40 to 75 kVA at 50 Hz or 50 to 94
kVA at 60 Hz).
Connect the alternator to the cogeneration installation or the
national grid, depending on the intended use.
If applicable, connect the coolant circuit of the alternator to
the larger installation for optimized heat recovery.
Ensure that the alternator is properly protected using the
built-in protection system.
Customize the operation of the alternator by utilizing any
available options according to your specific requirements.
Monitor the performance of the alternator and address any
issues promptly to ensure continuous and efficient operation.

For further details and specific instructions, refer to the
complete user manual provided with the product.

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LSAH 44.3
Alternator for cogeneration installations
40 to 75 kVA – 50 Hz / 50 to 94 kVA – 60 Hz Electrical and mechanical data

MAIN FEATURES AND OPTIONS

Built to heat
The LSAH range of alternators has been designed to maximize efficiency of cogeneration installations.
Thanks to its specific built-in coolant circuit, heat recovery is optimized and directly fed into the larger installation.
LSAH alternators are also perfectly suited for continuous service connected to the national grid and other applications like oil and gas.
The various design elements and construction features of LSAH machines make them highly performant and durable.
Standards
Nidec Leroy-Somer LSAH 44.3 alternator meets all 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). 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 European zone. Nidec Leroy-Somer LSAH 44.3 alternator can be integrated in EC marked generator set, and bears EC and CMIM markings. It is designed, manufactured and marketed in an ISO 9001 and ISO 14001 quality assurance environment.
Electrical characteristics and performances
· Class H insulation · 2/3 pitch winding, standard 6-wire (6S) reconnectable · Voltage range:
– 50 Hz: 380V/400V/415V – 60 Hz: 380V/440V/480V Other voltages: consult us · High efficiency and motor starting capacity

Protection system and options
· Designed for an operating environment up to 80°C and a maximum cooling liquid temperature of 75°C
· Water flow: 3 to 10 m3/h · pH of water: 7<pH<8 · Degree of protection: IP 44 (option: IP55/IP56) · Enclosed machine cooled by heat transfer fluid · Options:
– Double terminal box – Space heater – Bearing sensors – Thermal protection for stator windings
(PT100 sensors) – Shaft height: adapted on request – Remote voltage potentiometer – Current transformer for parallel operation – Single-bearing configuration – Reinforced paint for harsh environment
Mechanical construction
· Compact rigid assembly to better withstand generator vibrations
· Steel frame and terminal box
· Cast iron flanges and shields · Two-bearing and single-bearing mounting · Half-key balancing · Greasable ball bearings: 40,000h · Direction of rotation: clockwise and anti-clockwise
(without derating) · Noise level: 81 dBA (IEC 60034-9) · Output cable direction: left or right
Terminal box design
· Remote voltage regulator (AVR not mounted in terminal box)
· Terminal block for voltage reconnection
· Terminal block on the left or right, or both sides (with extra cost)

EXCITATION AND REGULATION SYSTEM

Excitation system

AVR

AREP

D350 D550

Standard Option

Regulation options

C.T. Current transformer
for paralleling

Mains paralleling

3-phase sensing is included as a standard with digital regulators.

Remote voltage potentiometer

Electric Power Generation

GENERAL CHARACTERISTICS

Insulation class Winding pitch
Number of wires Protection Cooling – Code
Altitude Overspeed Water flow

H
2/3 (wind. 6S) 6
IP 44 Water – IC7A1W7
1000 m 2250 R.P.M. 3 to 10 m3/h

Excitation system AVR type Voltage regulation (*) Short-circuit current Total Harmonic Distortion THD (**) in no-load Total Harmonic Distortion THD (**) in linear load Waveform: NEMA = TIF (**) Waveform: I.E.C. = THF (**)

(*) Steady state (**) Total harmonic distortion between phases, no-load or on-load (non-distorting)

AREP D350 ± 0.25 % 300 % (3 IN) : 10s < 2 % < 5 % < 50
< 1.5 %

RATINGS

50 Hz – 1500 R.P.M.

Duty max. / T° C Class / T° K
Y LSAH 44.3 M4 kVA
kW
LSAH 44.3 M6 kVA
kW
LSAH 44.3 L8 kVA
kW
LSAH 44.3 VL12 kVA
kW

Continuous / 80 °C (environment) – 75 °C (liquid)

F / 70° K (Standard)

P.F. 1

P.F. 0.8

B / 45° K

P.F. 1

P.F. 0.8

H / 90° K

P.F. 1

P.F. 0.8

380V 400V 415V 380V 400V 415V 380V 400V 415V 380V 400V 415V 380V 400V 415V 380V 400V 415V

40 40 40

50 50 50

32 32 32

40 40 40

44 44 44

55 55 55

40 40 40

32 32 32

44 44 44

52 52 52

65 65 65

42 42 42

52 52 52

57 57 57

71 71 71

52 52 52

42 42 42

57 57 57

60 60 60

75 75 75

48 48 48

60 60 60

66 66 66

82 82 82

60 60 60

48 48 48

66 66 66

75 75 75

94 94 94

60 60 60

75 75 75

83 83 83 104 104 104

75 75 75

60 60 60

83 83 83

60 Hz – 1800 R.P.M.

Duty max. / T° C Class / T° K
Y LSAH 44.3 M4 kVA
kW
LSAH 44.3 M6 kVA
kW
LSAH 44.3 L8 kVA
kW
LSAH 44.3 VL12 kVA
kW

Continuous / 80 °C (environment) – 75 °C (liquid)

F / 70° K (Standard)

P.F. 1

P.F. 0.8

B / 45° K

P.F. 1

P.F. 0.8

H / 90° K

P.F. 1

P.F. 0.8

380V 440V 480V 380V 440V 480V 380V 440V 480V 380V 440V 480V 380V 440V 480V 380V 440V 480V

40 46 50 49 57 62 32 37 40 40 46 50 44 50 55 55 63 69

40 46 50

39 46 50

32 37 40

44 50 55

49 57 62 62 72 78 40 46 50 49 57 62 54 62 68 67 78 85

49 57 62

50 58 62

40 46 50

39 46 50

54 62 68

59 69 75 74 86 94 48 55 60 59 69 75 66 76 83 82 94 103

59 69 75

48 55 60

47 55 60

66 76 83

66 75 82

74 86 94 93 107 117 59 69 75 74 86 94 82 95 104 103 119 130

74 86 94

59 69 75

82 95 104 82 95 104

For other needs, please contact us.

TEMPERATURE AND POWER

Power adjustment factor according to the coolant temperature

Coolant T °C Factor

40 – 50 °C 1.03

60 – 75 °C 1

Max T water (outlet vs inlet) at water temperature 40 °C to 75 °C

Class B 0.5 K

Class F 0.7 K

Class H 0.9 K

85 – 95 °C 0.97

Electric Power Generation

EFFICIENCIES 400 V – 50 HZ (— P.F.: 0.8) (– P.F.: 1) – CLASS F

% 100

LSAH 44.3 M4

96
92
88 0

95.5 94.2
93.1

96.1 96.2

94.3

94.7 94.7

89.8

89.0

kVA

% 100
96 92

LSAH 44.3 M6

96.0

96.6

96.7 96.7

93.5

95.0

95.4

95.2 95.1

92.7

88 0

kVA

% 100

LSAH 44.3 L8

96.4 96.7 96.7

95.6

92.4 92

95.3 95.4 95.3 94.6

91.7

88 0

kVA 100

100 % 96 92

LSAH 44.3 VL12

92.6

96.6 96.9 96.9 95.7

94.8

95.5

95.7 95.6

91.9

88 0

kVA

100

120

REACTANCES (%). TIME CONSTANTS (MS) – CLASS F / 400 V – P.F. 1

Kcc Short-circuit ratio Xd Direct-axis synchronous reactance unsaturated Xq Quadrature-axis synchronous reactance unsaturated T’do No-load transient time constant X’d Direct-axis transient reactance saturated T’d Short-circuit transient time constant X”d Direct-axis subtransient reactance saturated T”d Subtransient time constant X”q Quadrature-axis subtransient reactance saturated Xo Zero sequence reactance X2 Negative sequence reactance saturated Ta Armature time constant
Other class F / 400 V data

io (A) ic (A) uc (V)
ms kVA % W W

No-load excitation current AREP On-load excitation current AREP On-load excitation voltage AREP Response time (U = 20% transient) Start (U = 20% continuous or U = 30% transient) AREP* Transient U (on-load 4/4) AREP – P.F.: 1 LAG No-load losses
Heat dissipation

* P.F. = 0.6

M4 1.28 119 61 1802 6.6 100 3.9 10 6.9 0.27 5.47 15
1.08 1.4 11.2 500 275 4.8 1212 1602

Electric Power Generation

M6 0.67 179 91 1921 9.3 100 5.5 10 9.8 0.38 7.73 15
0.74 1.35 10.8 500 255 4.8 947 1740

L8 0.93 150 76 2024 7.4 100 4.4 10 7.8 0.3 6.16 15
0.94 1.42 11.4 500 371 4.8 1289 2006

VL12 0.99 140 71 2253 6.2 100 3.7 10 6.7 0.26 5.25 15
0.94 1.39 11.1 500 550 4.8 1598 2374

TRANSIENT VOLTAGE VARIATION 400 V – 50 HZ – CLASS F

Voltage drop

30% 25% 20% 15% 10%
5% 0%
0

M4
M6 L8 VL12

100

150

200

250

300

Phase loading (AREP) – kVA at P.F. = 1

Voltage rise

30% 25% 20% 15% 10% 5% 0%
0

M4
M6 L8 VL12

100

150

200

250

300

Load shedding (AREP) – kVA at P.F. = 1

Voltage drop

30% 25% 20% 15% 10%
5% 0%
0

M6 M4

VL12

100

200

300

400

500

600

Motor starting (AREP) Locked rotor kVA at P.F. = 0.6

– 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 () at 50 Hz, then kVA must be multiplied by (400/U)2 or (230/U)2.

Electric Power Generation

EFFICIENCIES 480 V – 60 HZ (— P.F.: 0.8) (– P.F.: 1) – CLASS F

% 100

LSAH 44.3 M4

96
92
88.8 88
0

95.9 96.1 95.2

93.7

94.2 94.7 94.8

92.8

88.1

kVA 80

100 %

LSAH 44.3 M6

96.4 96.6 96.6

95.5

92.4

94.7

95.3

95.3 95.3

91.8

88 0

kVA

100

100 %
96
92
88 0

LSAH 44.3 L8

96.2 96.6 96.7 95.2

95.2

95.4 95.4

94.4

91.7

91.1

kVA

100

120

% 100
96
92
88 0

LSAH 44.3 VL12

96.4 96.8 96.8 95.3

95.4

95.7 95.7

94.6

91.8

91.2

kVA

80 100 120 140

REACTANCES (%). TIME CONSTANTS (MS) – CLASS F / 480 V – P.F. 1

Kcc Xd Xq T’do X’d

Short-circuit ratio Direct-axis synchronous reactance unsaturated Quadrature-axis synchronous reactance unsaturated No-load transient time constant Direct-axis transient reactance saturated

T’d Short-circuit transient time constant

X”d Direct-axis subtransient reactance saturated

T”d Subtransient time constant X”q Quadrature-axis subtransient reactance saturated Xo Zero sequence reactance X2 Negative sequence reactance saturated Ta Armature time constant

Other class F / 480 V data

io (A) ic (A) uc (V)
ms kVA % W W

* P.F. = 0.6

M4 1.24 123 63 1802 6.8 100 4.1 10 7.1 0.28 5.65 15
1.08 1.41 11.3 500 331 4.8 1696 2083

Electric Power Generation

M6 0.67 179 91 1921 9.3 100 5.5 10 9.8 0.38 7.73 15
0.74 1.34 10.8 500 306 4.8 1373 2163

L8 0.89 156 79 2024 7.7 100 4.6 10 8.2 0.32 6.43 15
0.94 1.45 11.6 500 443 4.8 1823 2601

VL12 0.96 146 74 2253 6.4 100 3.8 10
7 0.27 5.44 15
0.94 1.4 11.2 500 657 4.8 2253 3081

TRANSIENT VOLTAGE VARIATION 480 V – 60 HZ – CLASS F

Voltage drop

30% 25% 20% 15% 10% 5% 0%
0

M4 M6 L8 VL12
50 100 150 200 250 300 350 400 Phase loading (AREP) – kVA at P.F. = 1

Voltage rise

30% 25% 20% 15% 10% 5% 0%
0

M4 M6 L8 VL12
50 100 150 200 250 300 350 400 Load shedding (AREP) – kVA at P.F. = 1

Voltage drop

30% 25% 20% 15% 10%
5% 0%
0

M6 M4

VL12

100 200 300 400 500 600 700
Motor starting (AREP) Locked rotor kVA at P.F. = 0.6

– 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 (), 240V (YY) at 60 Hz, then kVA must be multiplied by (480/U)2 or (277/U)2 or (240/U)2.

Electric Power Generation

3-PHASE SHORT-CIRCUIT CURVES AT NO LOAD AND RATED SPEED (STAR CONNECTION Y) CLASS F

LSAH 44.3 M4
Symmetrical ——-Asymmetrical – – –

10000 1000 100

AREP In

Current (A)

100

1000

10000

Time (ms)

LSAH 44.3 M6
Symmetrical ——-Asymmetrical – – –

10000 1000 100

Current (A)

1 1

AREP In

100

1000

10000

Time (ms)

Influence due to connection For () connection, use the following multiplication factor:
– Current value x 1.732.

Electric Power Generation

3-PHASE SHORT-CIRCUIT CURVES AT NO LOAD AND RATED SPEED (STAR CONNECTION Y) CLASS F

LSAH 44.3 L8
Symmetrical ——-Asymmetrical – – –

10000 1000 100

AREP In

Current (A)

100

1000

10000

Time (ms)

LSAH 44.3 VL12
Symmetrical ——-Asymmetrical – – –

10000 1000

100

Current (A)

1 1

AREP In

100

1000

10000

Time (ms)

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.

Instantaneous (max.) Continuous Maximum duration (AREP)

3 – phase 1 1
10 sec.

2 – phase L / L 0.87 1.5 5 sec.

1 – phase L / N 1.3 2.2
2 sec.

Electric Power Generation

571

TWO-BEARING DIMENSIONS – STANDARD

Ø 557
+0
Ø 409.58 – 0.127 Ø 65 h6

110.5

189.5

WU Xg

105

292 Ø 484

Access to terminals
(8)

274 Ø 485

M20
WD C

Type 48 – I “1/2”

Access to diodes

Dimensions (mm) and weight

Type

LSAH 44.3 M4

839.5

729

LSAH 44.3 M6

839.5

729

LSAH 44.3 L8

874.5

764

LSAH 44.3 VL12

974.5

864

445

494.5

330

445

494.5

345

480

529.5

360

580

629.5

370

100

286

143

31 18

390 12 holes M10 equid. on Ø 428.62
(6)
11 69
45 30
383 515 600

146 M10

+1 -3

194.5

252

194.5

252

194.5

252

194.5

252

Weight (kg)

262

545

262

580

262

622

262

750

TORSIONAL ANALYSIS DATA
Xr

Ø 65 Ø 70 Ø 72 Ø 74.8 Ø 75 Ø 80 Ø 70 Ø 40

Centre of gravity: Xr (mm), Rotor length: Lr (mm), Weight: M (kg), Moment of inertia: J (kgm2): (4J = MD2)

Type

LSAH 44.3 M4

332.5

828

135.5

LSAH 44.3 M6

347

828

147

LSAH 44.3 L8

364

863

160.5

LSAH 44.3 VL12

413

963

206

J 0.984 1.098 1.206 1.592

NOTE : Dimensions are for information only and may be subject to modifications. Contractual 2D drawings can be downloaded from the LeroySomer site, 3D drawing files are available upon request. The torsional analysis of the transmission is imperative. All values are available upon request.

Electric Power Generation

571

SINGLE-BEARING DIMENSIONS – OPTION

189.5

Access to terminals

390 XBG holes Ø S equid. on Ø M
(6)

(8)

X holes Ø Y equid. on Ø U

292 Ø 484
274 Ø 485

286

0
Ø N- 0.127
– 0.05
Ø BX – 0.15

+1 -3

143

261.5

ø 127

100

1 5

146 M10

194.5

Access to diodes

45 30

178.5

383

252

Type 48 – I “1/2”

515

600

Dimensions (mm) and weight

Coupling

Type

L maxi*

Xg Weight (kg)

Flange

LSAH 44.3 M4

810

729

445

494.5

330

545

Flex plate

LSAH 44.3 M6

810

729

445

494.5

345

580

11 ½

–

LSAH 44.3 L8

845

764

480

529.5

360

622

LSAH 44.3 VL12

945

864

580

629.5

370

750

–

* L maxi = LB + AH maxi + 19

Flange (mm)

Flex plate (mm)

S.A.E.

XBG

S.A.E.

361.95

381

11 ½

352.42

333.38

409.58

428.62

314.32

295.28

447.68

466.72

263.52

244.48

39.6

53.8

For torsional analysis data or other request: consult us.
NOTE : Dimensions are for information only and may be subject to modifications. Contractual 2D drawings can be downloaded from the LeroySomer site, 3D drawing files are available upon request.

Electric Power Generation

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© 2023 Moteurs Leroy-Somer SAS. The information contained in this brochure is for guidance only and does not form part of any contract. The accuracy cannot be guaranteed as Moteurs Leroy-Somer SAS have an ongoing process of development and reserve the right to change the specification of their products without notice. Moteurs Leroy-Somer SAS. Headquarters: Bd Marcellin Leroy, CS 10015, 16915 Angoulême Cedex 9, France. Share Capital: 38,679,664 , RCS Angoulême 338 567 258.
5873 en – 2023.01 / h