Siemens DHR Series Installation, Operation & Maintenance Instructions Manual Download | Manualshive

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SGIM-9958B (1-2003) Printed in U.S.A.

© 2001 Siemens Power Transmission & Distribution, Inc.

SIEMENS is a registered trademark of Siemens AG.

Siemens Power
Transmission & Distribution, Inc.

P.O. Box 29503
Raleigh, NC 27626-0503

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Summary of Contents for DHR Series

Page 1: ...Instructions Installation Operation Maintenance SGIM 9958B Vacuum Circuit Breakers Vehicle Type DHR 4 16kV to 15kV ...

Page 2: ...rts should not be used in the repair of the equipment Follow all safety instructions contained herein IMPORTANT The information contained herein is general in nature and not intended for specific application purposes It does not relieve the user of responsibility to use sound practices in application installation operation and mainte nance of the equipment purchased Siemens reserves the right to m...

Page 3: ... Breaker Module Into Compartment 4 Levering Device and Breaker Interlock 4 Levering in Device 4 Interlock Position Indicator 5 Test Position 5 Operating Position 5 Interlock 5 Secondary Contacts 6 Ground Contact 6 Mechanism Operated Control Switch 6 Maintenance 7 Introduction and Maintenance Intervals 7 Recommended Maintenance and Lubrication 7 Removal from Switchgear 8 Checks of the Primary Power...

Page 4: ...ountered by the user These words are defined as Danger Indicates an imminently hazardous situation which if not avoided will result in death or serious in jury Warning Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Caution indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury Dangerous Proce...

Page 5: ...e shipping pallet for later use if the breaker is to be stored prior to its installation 2 Inspect for concealed damage Notification to carrier must take place within 15 days to assure prompt reso lution of claims 3 Each circuit breaker should be appropriately lifted us ing lifting sling rated for at least 2 000 lbs Breaker shall be lifted by Upper B phase post insulator 4 The palleted circuit bre...

Page 6: ...re is an arm on each side mounted on a com mon shaft across the back of the breaker On each arm is a roller which engages a groove in the sidewall of the cell A removable crank engages another shaft in the right front corner of the breaker which turns the arms through a worm gear and pinion arrangement Hazardous voltages and high speed moving parts Will cause death serious injury and property dama...

Page 7: ...ce the inter lock is operative only when the breaker is in fan interme diate position between fully engaged and fully withdrawn it also serves as a means of indicating that the breaker is in the Operating Position and the main disconnecting con tacts fully engaged or that it is in the Test Position with the contacts separated Test Position The breaker may be rolled into the metal clad cell until t...

Page 8: ...ures a good electrical contact The flexible control wires are soldered to each plug and are arranged in a loop to allow free movement of the contact slide Figure 3 Secondary Contacts Ground Contact A ground contact is located at the left rear of the breaker from directly above the 18 point secondary plug Figure 3 Six spring loaded floating contact fingers engage the ground contact at the rear of t...

Page 9: ...sed on your experience with the equipment in the ac tual service environment Regardless of the length of the maintenance and lubrica tion interval Siemens recommends that circuit breakers and switchgear should be inspected and exercised annu ally Recommended Maintenance and Lubrication Periodic maintenance and lubrication should include all the tasks shown in Table 1 Recommended procedures for eac...

Page 10: ... red Trip pushbutton again and observe the spring con dition indicator It should read Discharge Refer to Cir cuit Breaker Operator Manual SGIM 9918 5 Remove the breaker from the switchgear Refer to the preceding installation section of this manual for special instructions and precautions regarding removal of a breaker which is not at floor level Checks of the Primary Power Path The primary power p...

Page 11: ...echanical damage burning or pitting Using a clean cloth saturated with denatured alcohol clean old lubricant from primary disconnects and apply Siemens contact lubricant reference 15 171 370 002 in a very thin layer Fastener Check Inspect all fasteners for tightness Both lock nuts and re taining rings are used Replace any fasteners that appear to have been frequently removed and replaced Racking M...

Page 12: ...9958B 1 2003 Printed in U S A 2001 Siemens Power Transmission Distribution Inc SIEMENS is a registered trademark of Siemens AG Siemens Power Transmission Distribution Inc P O Box 29503 Raleigh NC 27626 0503 ...

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