Turbomachinery Package Specification

Titan 250 Generator Set

 

 

armature and a three-phase, full-wave, diode-type bridge rectifier that rotates with the armature. The pilot exciter is a PMG that rotates with the main generator rotor shaft. It feeds the exciter field windings with excitation current and is controlled by the CGCM.

5.2.7Bearing Lubrication System

The generator is supplied with a force-fed bearing lubrication system consisting of onskid piping and a filter strainer. Oil is supplied from the package lube oil system.

Table 3. Generator and Associated Equipment Specifications

Approximate Weight

Generator (Typical Open Drip Proof)

45 000 kg (99,200 lb)

Construction Types

 

Open Drip Proof (OPD), Air Cooled

Standard

Closed Air Circuit Water-to-Air Cooled (CACW)

Optional

Closed Air Circuit, Air Cooled (CACA)

Optional

Totally Enclosed Air-to-Air Cooled (TEAAC)

Optional

Totally Enclosed Water Air Cooled (TEWAC)

Optional

Generator

 

Optional Voltage Ratings See Note (a)

11,000, 12,470, or 13,800 VAC,

Frequency Ratings

50 or 60 Hz

Number of Poles

4

Number of Leads

6

Connection

Wye

Stator Windings

Form Wound

Insulation

National Electrical Manufacturers Association

 

(NEMA) Class F

Temperature Rise See Note (b)

NEMA Class B,

Overload Capacity

-150% Rated Current for One Minute

 

-110% Rated Current for Two Hours

Overload Compliance

NEMA

Short Circuit Capability

300% For 10 seconds

Rotor Balance

To 125% of Rated Speed

Maximum Wave Form Deviation

10%

Maximum Harmonic Content

3%

Telephone Influence Factor (TIF)

 

Balanced

100

Residual

75

Efficiency

The combined generator, exciter, and regulator

 

efficiency at full load is nominally 97%.

Space Heater

 

Voltage

120, 220, 230, or 240 VAC

Frequency

50 or 60 Hz

Phase

1 Phase

Vibration Monitoring

 

Generator Bearing Driven End

Displacement Probes, X and Y axis

Generator Bearing Exciter End

Displacement Probes, X and Y axis

Notes:

 

(a)Other voltages can be provided to meet specific customer requirements.

(b)A 80°C (144°F) temperature rise is based on the generator nameplate rating at 40°C (104°F) and a power factor of 0.8 for continuous duty service.

© 2008 Solar Turbines Incorporated. All rights reserved.

TPS250GS/908 - Preliminary

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