Woodward TG-10E Скачать руководство пользователя страница 29 | Manualshive

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Woodward TG-10E Скачать руководство пользователя страница 29

Manual 04045

TG-10E/-13E/-17E Actuator

Woodward

25

The control port in the pilot-valve bushing (7) is covered by the land on the pilot-
valve plunger (20). This stops the power piston (6) and the actuator terminal
shaft (2) in the new position needed to run the turbine at the decreased load or
decreased-speed setting.

Figure 5-1. TG Actuator Schematic Diagram

Increase in Load or Speed Setting

Assume that the turbine is running on-speed under steady-state conditions. The
control voltage to the actuator is therefore constant. The pilot-valve plunger (20)
is centered over the control port of the pilot-valve bushing (7) and the control
land stops the flow of pressure oil through the bushing control port. There is no
movement of the power piston (6) and no movement of the actuator terminal
shaft (2).

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Содержание TG-10E

Страница 1: ...Installation and Operation Manual TG 10E 13E and 17E Actuator Manual 04045 Revision E...

Страница 2: ...ed for safety as appropriate CAUTIONS BATTERY CHARGING To prevent damage to a control system that uses an alternator or battery charging device make sure the charging device is turned off before disco...

Страница 3: ...hen is a Heat Exchanger Necessary 7 Oil Supply 7 CHAPTER 4 OPERATION AND ADJUSTMENTS 14 Introduction 14 Initial Operation 14 Cleaning the Filter Screens and The Pilot Valve Plunger Orifice 15 Calibrat...

Страница 4: ...5 TG 13E 17E Outline Drawing 13 Figure 4 1 TG Actuator with Cover Removed 16 Figure 4 2 Wiring Diagram for Actuator Calibration Circuit 18 Figure 5 1 TG Actuator Schematic Diagram 25 Figure 6 1 Actuat...

Страница 5: ...he high speed actuator 4000 to 6000 rpm may require a heat exchanger in some applications See Chapter 3 When is a Heat Exchanger Necessary All other operating features and specifications of the TG act...

Страница 6: ...in accordance with North American Class I Division 2 wiring methods as applicable and in accordance with the authority having jurisdiction For use in NEC Class 2 circuits 30 volts maximum WARNING EXPL...

Страница 7: ...as plastic or Styrofoam cups cup holders cigarette packages cellophane wrappers vinyl books or folders plastic bottles and plastic ash trays away from the control the modules and the work area as muc...

Страница 8: ...be stored for short periods of time as received from the factory For long term storage storage in an environment with large temperature changes humid or corrosive atmosphere etc or if the actuator is...

Страница 9: ...ions This places the servo piston on the bottom keeping it completely immersed in oil and preventing air from being trapped in the servo See Figure 3 3 Outline Drawing for alternate cap and plug posit...

Страница 10: ...flow when required Installed linkages must operate smoothly free of binding If there is a collapsible member in the linkage be sure that it does not yield each time the actuator moves the linkage rapi...

Страница 11: ...ger be used to prevent oil breakdown and subsequent problems due to excessive oil operating temperatures TG actuators operating at low and medium speed ranges 1100 2400 and 2400 4000 rpm do not normal...

Страница 12: ...water in the oil 3 Oil not suitable for the operating conditions caused by Changes in ambient temperature An improper oil level which creates foamy aerated oil Operating an actuator continuously beyon...

Страница 13: ...replacement oil should be free of dirt water and other foreign material Use clean containers to store and transfer oil WARNING SOLVENTS Observe manufacturer s instructions or restrictions regarding th...

Страница 14: ...TG 10E 13E 17E Actuator Manual 04045 10 Woodward Table 3 1 Oil Chart Table 3 2 Viscosity Comparisons...

Страница 15: ...Manual 04045 TG 10E 13E 17E Actuator Woodward 11 Figure 3 3 TG Actuator Outline Drawing Terminals C and D must be jumpered in connecting plug For reverse action switch polarity at Terminals A and B...

Страница 16: ...nual 04045 12 Woodward Figure 3 4 TG 13E 17E Outline Drawing version that does not require a drive from the turbine Terminals C and D must be jumpered in connecting plug For reverse action switch pola...

Страница 17: ...tuator Woodward 13 Figure 3 5 TG 13E 17E Outline Drawing electric motor driven version with drives and adapters Wire motors according to the diagram that comes with equipment Rotation must be correct...

Страница 18: ...T UP Be prepared to make an emergency shutdown when starting the engine turbine or other type of prime mover to protect against runaway or overspeed with possible personal injury loss of life or prope...

Страница 19: ...bine manufacturer s instructions 2 Drain the oil from the actuator through the oil drain plug see Figure 1 1 3 Use a 1 3 8 inch 35 mm wrench and remove the oil filter hex nut The filter is attached to...

Страница 20: ...valve plunger orifice 11 Reinsert the pilot valve plunger into the bushing Make sure that the pilot valve plunger slides freely of its own weight while shaking the bushing If not disassemble and check...

Страница 21: ...ontrol and extreme caution must be taken to prevent overspeed Do not attempt if the overspeed device is not functioning 2 Disconnect the actuator from the steam control valve linkage 3 Remove the actu...

Страница 22: ...n plug 10 If condition 1 or 2 in Step 8 above exists skip Step 11 below and go to Step 12 to recalibrate the actuator 11 If condition 3 in Step 8 above exists the transducer assembly must be disassemb...

Страница 23: ...erminal shaft movement is seen when the turbine is started and 20 mA is applied 14 Check the range adjustment on the actuator With 20 mA current applied terminal shaft travel must be 1 to 3 degrees fr...

Страница 24: ...degree movement or more than 39 degree movement is seen from minimum position 27 to 29 degrees for TG 10E 3 If the terminal shaft does not rotate smoothly from one position to another or if it does n...

Страница 25: ...the center of the actuator decreases the range and moving it toward the center increases the range 27 to 29 degrees for the TG 10E Repeat Steps 12 and 13 until the correct travel range is obtained 14...

Страница 26: ...7E Excess pressure compresses the accumulator springs and oil flows through the accumulator bypass 17 to the filter 26 An increase or a decrease in current from the governor moves the pilot valve plun...

Страница 27: ...terminal shaft 2 has rotated far enough so that the decrease in restoring spring force equals the increase in magnetic force in the solenoid coils 23 the pilot valve plunger is re centered The opposi...

Страница 28: ...ng to the transducer The load or speed sensing must come from an electronic control The description that follows is based on load changes The integrating control senses the load change and proportiona...

Страница 29: ...ed speed setting Figure 5 1 TG Actuator Schematic Diagram Increase in Load or Speed Setting Assume that the turbine is running on speed under steady state conditions The control voltage to the actuato...

Страница 30: ...the terminal shaft 2 in the increase steam direction As the terminal shaft 2 rotates in the increase steam direction the restoring lever 13 moves up decreasing the restoring spring 25 force The termin...

Страница 31: ...l Inspection Actuator troubles are usually revealed in speed variations of the turbine but it does not follow that all speed variations are caused by the actuator When improper speed variations appear...

Страница 32: ...nd back flush the filter in fuel oil or kerosene and reinstall Remove this filter only after the turbine has stopped rotating and the oil has been drained from the actuator If an external oil supply i...

Страница 33: ...High steam valve gain Check that steam valve is not too large or oversize for the particular application 2 The actuator has difficulty in accepting load or is unstable as evidenced by a slow and unst...

Страница 34: ...4045 33 Screw 250 20 x 1 000 inch Thread Form 4 04045 34 Pump Housing Assembly 1 04045 35 Pump 375 Thick Gerotor 1 04045 36 Pin Pump Drive 1 04045 37 Gauge Oil Sight 2 04045 38 Elbow 1 8 Pipe Thd to 1...

Страница 35: ...Manual 04045 TG 10E 13E 17E Actuator Woodward 31 Figure 7 1 TG Exploded View...

Страница 36: ...ctured program and includes the full standard Woodward product warranty Woodward Product and Service Warranty 5 01 1205 This option allows you to call in the event of an unexpected outage or in advanc...

Страница 37: ...oodward for repair please contact Woodward in advance to obtain a Return Authorization Number When shipping the item s attach a tag with the following information name and location where the control i...

Страница 38: ...ng replacement parts for controls include the following information the part number s XXXX XXXX that is on the enclosure nameplate the unit serial number which is also on the nameplate How to Contact...

Страница 39: ...ia telephone email us or use our website and reference Customer Services and then Technical Support Product Training is available at many of our worldwide locations standard classes We also offer cust...

Страница 40: ...ous steam etc Rating Application Control Governor Information Please list all Woodward governors actuators and electronic controls in your system Woodward Part Number and Revision Letter Control Descr...

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Страница 44: ...O 80522 1519 USA 1000 East Drake Road Fort Collins CO 80525 USA Phone 1 970 482 5811 Fax 1 970 498 3058 Email and Website www woodward com Woodward has company owned plants subsidiaries and branches a...

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