Voith 91868550 Instructions And Operating Manual Download Page 26 | Manualshive

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Summary of Contents for 91868550

Page 1: ...1 25 918 3626018864 en D 74564 Crailsheim Version 2 1 7 Overspeed Protector Type CTO B45202 Translation of the Original version Instruction and Operating Manual Version 2 1 ATTENTION Please make sure...

Page 2: ...No 49 0 7951 32 500 After Sales Service of Product Group Division Digital Ventures Direct dial 49 7951 32 470 Direct fax 49 7951 32 605 Email turcon voith com Address for deliveries of goods Voith Gro...

Page 3: ...n of symbols and warnings 6 2 2 Proper use 6 2 3 Important information 6 2 4 Warranty 8 3 Function 9 3 1 Mechanical design 9 3 2 Operation 10 3 3 Trip criteria 10 4 Packing Storage and Transportation...

Page 4: ...ion Outdoor installation Offshore Industr atmosph Hydraulic Data Supply pressure Pmax 25 bar Operating medium Type Hydraulic oil as per DIN 51524 Turbine oil as per DIN 51515 High flash point fluid 1...

Page 5: ...ms 25ms Trip time of overspeed shutdown 40ms at Toil 40 C 8 Trip criteria See Chapter 3 4 5 Permanent operation of CTO is allowed within this supply voltage range 6 The indication refers to the trip f...

Page 6: ...y valve via a restoring spring designed with substantial power reserves This procedure reliably connects the way valve outlet with the tank return line and the trip stop valve will close The overspeed...

Page 7: ...nd objects Prior to performing any work on the overspeed protector switch off the hydraulic and electric auxiliary energy Electric components are integrated in the overspeed protector which may be des...

Page 8: ...ew fitting of the cable entry on the control magnet VRM is secured against distortion Do not distort or slacken the screw fitting 2 4 Warranty The terms and conditions mentioned in the General Terms a...

Page 9: ...rotector consists of the main functional units 1 Control magnet VRM P supply pressure 2 Tappet for power transmission A output 3 Potentiometer T4 T Tank return line 4 Electrical connection 5 Control h...

Page 10: ...coil current which generates a magnetic force FMag and adjusts the piston of the 3 2 way valve against the progressively designed restoring spring The coil current is then reduced and the control pis...

Page 11: ...trip but the internal release frequency threshold is reduced for a short time whereas the CTO is released internally for this time and thus a tiny movement of the trip stop cylinder can be seen The i...

Page 12: ...tor is stored in a dry location If it is intended to store the overspeed protector for a longer period of time special precautions have to be taken Coordinate such precautions for each individual case...

Page 13: ...tector Cleanliness is imperative during both installation and connection Prevent any impurities dust metal chips etc from getting into the interior of the overspeed protector or into the piping system...

Page 14: ...n removing the screw plugs Collect the oil in a suitable container and dispose of it properly Do not use fibrous or hardening sealing compounds such as hemp or mastic for sealing the connections and p...

Page 15: ...requency has to be documented Confirmation of the new adjustment by means of a documented trip test is mandatory before operating the turbine For safety reasons the overspeed protector is set to the m...

Page 16: ...m width across flats used to fix cover C see Fig 3 and remove the cover On account of the seal in cover C it is not easy to move It may therefore be helpful to first turn the cover and then lift it us...

Page 17: ...e actual speed remove indication readjust the 4 mA value using the If potentiometer for speed 0 after adjustment of the trip frequency See Chapter 6 2 If potentiometer After setting the coding switche...

Page 18: ...mA signal In case of a trip of the CTO the actual speed remote indication returns to 0 mA due to the external switch off of the 24V CTO supply In case this external switch off of the 24V supply is pre...

Page 19: ...eated pushing and releasing the pushbutton trip simulation adjusts the potentiometer The potentiometer is adjusted in steps clockwise and the trip stop valve is observed The trip time is set correctly...

Page 20: ...r signal trip and is the external trip signal available after opening of external trip loop Press the Reset button Disconnection when on exceeding SS frequency external trip loop is interrupted overvo...

Page 21: ...l trip loop closed Close contact external trip Press the Reset button Disconnect supply voltage yes B A C Have the trip signals been reset To exclude a speed pick up defect connect a 1 KOhm 10 resisto...

Page 22: ...ate operating phases Monitor the overspeed protector operating behavior for any changes Analyze and eliminate the causes as required during appropriate operating phases Inspection after approx 740 ope...

Page 23: ...lectronic components and residual oil If the overspeed protector is switched off for repair or inspection purposes or for a system shutdown switch off the oil supply system and release all pressure ac...

Page 24: ...Protector CTO B45202 2019 02 J M Voith SE Co KG Division Digital Ventures Page 24 25 918 3626018864 en D 74564 Crailsheim Version 2 1 9 Annex Table 1 Adjusting values turbine trip frequency Outline D...

Page 25: ...011111 159 8146 10011111 223 9895 11011111 32 4675 00100000 96 6424 01100000 160 8173 10100000 224 9923 11100000 33 4702 00100001 97 6451 01100001 161 8201 10100001 225 9950 11100001 34 4729 00100010...

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Page 27: ...alle Rechte vorbehalten ISO 16016 Weitergabe sowie Vervielf ltigung dieses Dokuments Verwertung und Mitteilung seines Inhalts sind verboten soweit nicht ausdr cklich gestattet 5k 0 VDC 24VDC ok The d...

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