Generator_Manual_and_Alignment_Information.pdf

HCM534F - Technical Data Sheet

HCM534F

SPECIFICATIONS & OPTIONS

STANDARDS

Marine generators may be certified to Lloyds, DnV, Bureau Veritas, ABS, Germanischer-Lloyd or RINA.

Other standards and certifications can be considered on request.

VOLTAGE REGULATORS

MX341 AVR - STANDARD

This sophisticated Automatic Voltage Regulator (AVR) is incorporated into the Stamford Permanent Magnet Generator (PMG) control system, and is standard on marine generators of this type.

The PMG provides power via the AVR to the main exciter, giving a source of constant excitation power independent of generator output. The main exciter output is then fed to the main rotor, through a full wave bridge, protected by a surge suppressor. The AVR has in-built protection against sustained over-excitation, caused by internal or external faults. This de-excites the machine after a minimum of 5 seconds.

An engine relief load acceptance feature can enable full load to be applied to the generator in a single step.

If three-phase sensing is required with the PMG system the MX321 AVR must be used.

We recommend three-phase sensing for applications with greatly unbalanced or highly non-linear loads.

MX321 AVR

The most sophisticated of all our AVRs combines all the features of the MX341 with, additionally, three-phase rms sensing, for improved regulation and performance.

Over voltage protection is built-in and short circuit current level adjustments is an optional facility.

WINDINGS & ELECTRICAL PERFORMANCE

All generator stators are wound to 2/3 pitch. This eliminates triplen (3rd, 9th, 15th …) harmonics on the voltage waveform and is found to be the optimum design for trouble-free supply of non-linear loads.

The 2/3 pitch design avoids excessive neutral currents sometimes seen with higher winding pitches, when in parallel with the mains. A fully connected damper winding reduces oscillations during paralleling. This winding, with the 2/3 pitch and carefully selected pole and tooth designs, ensures very low waveform distortion.

TERMINALS & TERMINAL BOX

Standard generators are 3-phase reconnectable with 12 ends brought out to the terminals, which are mounted on a cover at the non-drive end of the generator. A sheet steel terminal box contains the AVR and provides ample space for the customers' wiring and gland arrangements. It has removable panels for easy access.

SHAFT & KEYS

All generator rotors are dynamically balanced to better than BS6861:Part 1 Grade 2.5 for minimum vibration in operation. Two bearing generators are balanced with a half key.

INSULATION/IMPREGNATION

The insulation system is class 'H'.

All wound components are impregnated with materials and processes designed specifically to provide the high build required for static windings and the high mechanical strength required for rotating components.

QUALITY ASSURANCE

Generators are manufactured using production procedures having a quality assurance level to BS

EN ISO 9001.

The stated voltage regulation may not be maintained in the presence of certain radio transmitted signals.

Any change in performance will fall within the limits of Criteria 'B' of EN 61000-6-2:2001. At no time will the steady-state voltage regulation exceed 2%.

NB Continuous development of our products entitles us to change specification details without notice, therefore they must not be regarded as binding.

Front cover drawing typical of product range.

CONTROL SYSTEM SEPARATELY EXCITED BY P.M.G.

A.V.R. MX321 MX341

VOLTAGE REGULATION ± 0.5 % ± 1.0 % With 4% ENGINE GOVERNING

SUSTAINED SHORT CIRCUIT

INSULATION SYSTEM CLASS H

PROTECTION

RATED POWER FACTOR

STATOR WINDING

WINDING PITCH

WINDING LEADS

STATOR WDG. RESISTANCE

ROTOR WDG. RESISTANCE

EXCITER STATOR RESISTANCE

EXCITER ROTOR RESISTANCE

R.F.I. SUPPRESSION BS EN 61000-6-2 & BS EN 61000-6-4,VDE 0875G, VDE 0875N. refer to factory for others

WAVEFORM DISTORTION

MAXIMUM OVERSPEED

BEARING DRIVE END

BEARING NON-DRIVE END

WEIGHT COMP. GENERATOR

WEIGHT WOUND STATOR

WEIGHT WOUND ROTOR

WR² INERTIA

SHIPPING WEIGHTS in a crate

PACKING CRATE SIZE

TELEPHONE INTERFERENCE

COOLING AIR

VOLTAGE SERIES STAR 380/220 400/231 415/240 440/254 416/240 440/254 460/266 480/277

VOLTAGE PARALLEL STAR 190/110 200/115 208/120 220/127 208/120 220/127 230/133 240/138

VOLTAGE SERIES DELTA 220/110 230/115 240/120 254/127 240/120 254/127 266/133 277/138 kVA BASE RATING FOR

REACTANCE VALUES 565 585 600 600 663 694 706 725

Xd DIR. AXIS SYNCHRONOUS 2.45 2.29 2.18 1.94 2.99 2.80 2.60 2.46 X'd DIR. AXIS TRANSIENT 0.13 0.12 0.12 0.10 0.14 0.13 0.12 0.11 X''d DIR. AXIS SUBTRANSIENT 0.09 0.09 0.08 0.07 0.10 0.09 0.09 0.08 Xq QUAD. AXIS REACTANCE 2.04 1.91 1.82 1.62 2.39 2.24 2.08 1.96 X''q QUAD. AXIS SUBTRANSIENT 0.21 0.20 0.19 0.17 0.28 0.26 0.24 0.23

XL LEAKAGE REACTANCE 0.04 0.03 0.04 0.03 0.04 0.04 0.04 0.04

X2 NEGATIVE SEQUENCE 0.15 0.14 0.13 0.12 0.19 0.18 0.17 0.16

X0 ZERO SEQUENCE 0.07 0.07 0.06 0.06 0.08 0.07 0.07 0.07

REACTANCES ARE SATURATED VALUES ARE PER UNIT AT RATING AND VOLTAGE INDICATED

T'd TRANSIENT TIME CONST.

T''d SUB-TRANSTIME CONST.

T'do O.C. FIELD TIME CONST.

Ta ARMATURE TIME CONST.

SHORT CIRCUIT RATIO

17 Ohms at 22°C

0.092 Ohms PER PHASE AT 22°C

1685 kg

1780 kg1775 kg

2 BEARING

REFER TO SHORT CIRCUIT DECREMENT CURVES (page 7)

TWO THIRDS

BALL. 6314 (ISO)

IP23

0.8

DOUBLE LAYER LAP

NO LOAD < 1.5% NON-DISTORTING BALANCED LINEAR LOAD < 5.0%

BALL. 6220 (ISO)

2250 Rev/Min

1/Xd

0.08s 0.012s 2.5s

0.019s

HCM534F

2.16 Ohms at 22°C

1.035 m³/sec 2202 cfm 1.312 m³/sec 2780 cfm

50 Hz

THF<2%

60 Hz

TIF<50

1694 kg

166 x 87 x 124(cm)

WINDING 311

166 x 87 x 124(cm)

805 kg

655 kg

0.0037 Ohms PER PHASE AT 22°C SERIES STAR CONNECTED

1 BEARING

9.7551 kgm2

805 kg

684 kg

10.033 kgm2 rbishop Rectangle

Winding 311

THREE PHASE EFFICIENCY CURVES

Hz

THREE PHASE EFFICIENCY CURVES

Locked Rotor Motor Starting Curve

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 LOCKED ROTOR kVA

PE

R

C

EN

T

TR

A N

SI

EN

T

VO

LT

A

G E

D

IP

380V 416V 440V 460V 480V

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 LOCKED ROTOR kVA

PE

R

C

EN

T

TR

A N

SI

EN

T

VO

LT

A

G E

D

IP

346V 380V 400V 415V 440V

Hz

3-phase 2-phase L-L 1-phase L-N Voltage Factor Voltage Factor x 1.00 x 0.87 x 1.30

380v X 1.00 416v X 1.00 x 1.00 x 1.80 x 3.20 400v X 1.06 440v X 1.06 x 1.00 x 1.50 x 2.50 415v X 1.09 460v X 1.12 10 sec. 5 sec. 2 sec.

440v X 1.12 480v X 1.20

The sustained current value is constant irrespective of voltage level

Three-phase Short Circuit Decrement Curve. No-load Excitation at Rated Speed Based on star (wye) connection.

Max. sustained duration All other times are unchanged

Instantaneous

Sustained Minimum

HCM534F

50Hz 60Hz

Sustained Short Circuit = 2,900 Amps

Sustained Short Circuit = 3,300 Amps Note 1 The following multiplication factors should be used to adjust the values from curve between time 0.001 seconds and the minimum current point in respect of nominal operating voltage :

Note 2 The following multiplication factor should be used to convert the values calculated in accordance with NOTE 1 to those applicable to the various types of short circuit :

Note 3 Curves are drawn for Star (Wye) connected machines. For other connection the following multipliers should be applied to current values as shown :

Parallel Star = Curve current value X 2 Series Delta = Curve current value X 1.732 Note 3

Hz

Hz

10000

100000

0.001 0.01 0.1 1 10 TIME (secs)

C

UR

R

EN

T (A m ps

SYMMETRICAL

ASYMMETRICAL

10000

100000

0.001 0.01 0.1 1 10 TIME (secs)

C

UR

RE

NT

(A m ps

SYMMETRICAL

ASYMMETRICAL

Class - Temp Rise

Series Star (V) 380 400 415 440 380 400 415 440 380 400 415 440 380 400 415 440

Parallel Star (V) 190 200 208 220 190 200 208 220 190 200 208 220 190 200 208 220

Series Delta (V) 220 230 240 254 220 230 240 254 220 230 240 254 220 230 240 254 kVA 420 440 450 450 440 460 475 475 505 525 540 540 565 585 600 600 kW 336 352 360 360 352 368 380 380 404 420 432 432 452 468 480 480

Efficiency (%) 95.6 95.6 95.6 95.5 95.6 95.6 95.6 95.6 95.4 95.5 95.5 95.5 95.3 95.3 95.3 95.4 kW Input 351 368 377 377 368 385 397 397 423 440 452 452 474 491 504 503

Series Star (V) 416 440 460 480 416 440 460 480 416 440 460 480 416 440 460 480

Parallel Star (V) 208 220 230 240 208 220 230 240 208 220 230 240 208 220 230 240

Delta (V) 240 254 266 277 240 254 266 277 240 254 266 277 240 254 266 277 kVA 515 540 550 555 544 565 578 582 619 644 656 663 663 694 706 725 kW 412 432 440 444 435 452 462 466 495 515 525 530 530 555 565 580

Efficiency (%) 95.5 95.5 95.5 95.5 95.4 95.5 95.5 95.5 95.3 95.4 95.4 95.5 95.2 95.3 95.3 95.4 kW Input 431 452 461 465 456 473 484 488 520 540 550 555 557 583 593 608

© 2006

HCM534F

Winding 311 / 0.8 Power Factor

RATINGS

TD_HCM534F.GB_10.06_04_GB

Cont. H - 110/50°C

DIMENSIONS

Cont. E - 65/50°C Cont. B - 70/50°C Cont. F - 90/50°C

Barnack Road • Stamford • Lincolnshire • PE9 2NB Tel: 00 44 (0)1780 484000 • Fax: 00 44 (0)1780 484100

Hz