DEP 33.65.11.31-Gen.pdf

TECHNICAL SPECIFICATION SYNCHRONOUS AC MACHINES (AMENDMENTS/SUPPLEMENTS TO IEC 60034-1) DEP 33.65.11.31-Gen. January 1999 DESIGN AND ENGINEERING PRACTICE This document is confidential. Neither the whole nor any part of this document may be disclosed to any third party without the prior written consent of Shell International Oil Products B.V. and Shell International Exploration and Production B.V., The Hague, The Netherlands. The copyright of this document is vested in these companies. All rights reserved. Neither the whole nor any part of this document may be reproduced, stored in any retrieval system or transmitted in any form or by any PDF created with pdfFactory Pro trial version www.pdffactory.com means (electronic, mechanical, reprographic, recording or otherwise) without the prior written consent of the copyright owners. PDF created with pdfFactory Pro trial version www.pdffactory.com PREFACE DEP (Design and Engineering Practice) publications reflect the views, at the time of publication, of: Shell International Oil Products B.V. (SIOP) and Shell International Exploration and Production B.V. (SIEP) and Shell International Chemicals B.V. (SIC) The Hague, The Netherlands, and other Service Companies. They are based on the experience acquired during their involvementwith the design, construction, operation and maintenance of processing units and facilities, and they are supplemented with the experience of Group Operating companies. Where appropriate they are based on, or reference is made to, national and international standards and codes of practice. The objective is to set the recommendedstandard for good design and engineeringpractice applied by Group companies operating an oil refinery, gas handling installation, chemical plant, oil and gas production facility, or any other such facility, and thereby to achieve maximum technical and economic benefit from standardization. The information set forth in these publications is provided to users for their consideration and decision to implement. This is of particular importance where DEPs may not cover every requirement or diversity of condition at each locality. The system of DEPs is expected to be sufficiently flexible to allow individual operating companies to adapt the information set forth in DEPs to their own environment and requirements. When Contractors or Manufacturers/Suppliers use DEPs they shall be solely responsible for the quality of work and the attainment of the required design and engineering standards. In particular, for those requirements not specifically covered, the Principal will expect them to follow those design and engineering practices which will achieve the same level of integrity as reflected in the DEPs. If in doubt, the Contractor or Manufacturer/Supplier shall, without detracting from his own responsibility, consult the Principal or its technical advisor. The right to use DEPs is granted by SIOP, SIEP or SIC, in most cases under Service Agreements primarily with companies of the Royal Dutch/Shell Group and other companies receiving technical advice and services from SIOP, SIEP or SIC. Consequently, three categories of users of DEPs can be distinguished: 1)Operating companies having a Service Agreement with SIOP, SIEP, SIC or other Service Company. The use of DEPs by these Operating companies is subject in all respects to the terms and conditions of the relevant Service Agreement. 2)Other parties who are authorized to use DEPs subject to appropriate contractual arrangements. 3)Contractors/subcontractors and Manufacturers/Suppliers under a contract with users referred to under 1) or 2) which requires that tenders for projects, materials supplied or - generally - work performed on behalf of the said users comply with the relevant standards. Subject to any particular terms and conditions as may be set forth in specific agreements with users, SIOP, SIEP and SIC disclaim any liability of whatsoever nature for any damage (including injury or death) suffered by any company or person whomsoever as a result of or in connection with the use, application or implementation of any DEP, combination of DEPs or any part thereof. The benefit of this disclaimer shall inure in all respects to SIOP, SIEP, SIC and/or any company affiliated to these companies that may issue DEPs or require the use of DEPs. Without prejudice to any specific terms in respect of confidentiality under relevant contractual arrangements, DEPs shall not, without the prior written consent of SIOP and SIEP, be disclosed by users to any company or person whomsoever and the DEPs shall be used exclusively for the purpose for which they have been provided to the user. They shall be returned after use, including any copies which shall only be made by users with the express prior written consent of SIOP and SIEP. The copyright of DEPs vests in SIOP and SIEP. Users shall arrange for DEPs to be held in safe custody and SIOP or SIEP may at any time require information satisfactory to them in order to ascertain how users implement this requirement. All administrative queries should be directed to the DEP Administrator in SIOP. NOTE: In addition to DEP publications there are Standard Specifications and Draft DEPs for Development (DDDs). DDDs generally introduce new procedures or techniques that will probably need updating as further experience develops during their use. The above requirements for distribution and use of DEPs are also applicable to Standard Specifications and DDDs. Standard Specifications and DDDs will gradually be replaced by DEPs. DEP 33.65.11.31-Gen. January 1999 Page 2 PDF created with pdfFactory Pro trial version www.pdffactory.com TABLE OF CONTENTS PART IINTRODUCTION .4 1.1SCOPE 4 1.2DISTRIBUTION, INTENDED USE AND REGULATORY CONSIDERATIONS4 1.3DEFINITIONS 4 1.4CROSS-REFERENCES 4 2.GENERAL .5 2.1STATEMENT OF COMPLIANCE 5 2.2LIFETIME AND RELIABILITY 5 2.3EFFICIENCY .5 2.4GENERAL FEATURES OF DESIGN .6 PART IIAMENDMENTS/SUPPLEMENTS TO IEC 60034-1 7 Section 2Definitions 8 Section 3Duty .10 Section 4Rating 11 Section 5Site operating conditions .12 Section 6Electrical operating conditions .13 Section 7Thermal performance and tests.15 Section 8Other performance and tests .16 Section 9Rating plates20 Section 10Miscellaneous requirements 21 Section 12Additional requirements for machines in zone 2 areas 30 Section 13Inspection and tests.32 Section 14Documents.35 PART IIIAMENDMENTS AND SUPPLEMENTS TO IEC 60034-14 36 Section 1Scope and object.36 Section 8Limits of bearing housing vibration 36 Section 9Limits of relative shaft vibration36 Section 10Vibration tests37 Annex CInsulation quality test .38 PART IVREFERENCES 40 DEP 33.65.11.31-Gen. January 1999 Page 3 PDF created with pdfFactory Pro trial version www.pdffactory.com PART IINTRODUCTION 1.1SCOPE This DEP specifies requirements for three-phase, air-cooled, synchronous AC machines, and their excitation systems and auxiliary equipment. IEC 60034-1 shall apply to all synchronous AC machines. This DEP supplements IEC 60034-1 for all synchronous machines, both motors and generators, with ratings of 1 250 kVA and higher. This DEP does not apply to synchronous machines with ratings lower than 1 250 kVA, except for Section 12, which applies to synchronous machines of any rating sited in zone 2 areas. Part II of this DEP amends and supplements IEC 60034-1 (tenth edition plus Amendment 1,1997-06). This DEP: (i)makes selections from the options given in IEC 60034-1; (ii)specifies additional or modified requirements considered necessary for the machine to be suitable for operation and maintenance in continuously operating plants. This DEP is a revision of the DEP of the same number dated July 1997. NOTES:1.A bullet () in the margin indicateswhere informationfrom the Principal Is required.This information shall be indicated in the requisition. 2.An asterisk (*) in the margin indicates where design alternatives may be acceptable. In certain cases these alternatives are subject to approval by the Principal. 3.A diamond () in the margin indicates where information from the Manufacturer is required. This information shall be indicated in the requisition. 1.2DISTRIBUTION, INTENDED USE AND REGULATORY CONSIDERATIONS Unless otherwise authorised by SIOP and SIEP, the distribution of this DEP is confined to companies forming part of or managed by the Royal Dutch/Shell Group. It may be distributedto Contractors and Manufacturers/Suppliersnominated by them (i.e. the distribution code is “F“, as defined in DEP 00.00.05.05-Gen.). This DEP is intended for use in oil refineries, chemical plants, gas plants, exploration and production facilities and supply/marketing installations. If national and/or local regulations exist in which some of the requirements may be more stringent than in this DEP, the Contractor shall determine by careful scrutiny which of the requirements are the more stringent and which combination of requirements will be acceptable as regards safety, economic and legal aspects. In all cases the Contractor shall inform the Principal of any deviation from the requirements of this document which is considered to be necessary in order to comply with national and/or local regulations. The Principal may then negotiate with the Authorities concerned with the object of obtaining agreement to follow this document as closely as possible. 1.3DEFINITIONS See Part II, Section 2. 1.4CROSS-REFERENCES Where cross-references to other parts of this DEP are made, the referenced section DEP 33.65.11.31-Gen. January 1999 Page 4 PDF created with pdfFactory Pro trial version www.pdffactory.com number is shown in brackets. Other documents referenced by this DEP are listed in (Part III). DEP 33.65.11.31-Gen. January 1999 Page 5 PDF created with pdfFactory Pro trial version www.pdffactory.com 2.GENERAL 2.1STATEMENT OF COMPLIANCE By submitting the quotation the manufacturer is deemed to have agreed to comply with this DEP and the requisition.If the manufacturer has any deviations,concerning both requirements and recommendations, these shall be identified in writing at the time of quotation. Deviations from the requirements shall always be approved by the Principal. The approval shall state specifically the approved deviation. The equipment shall be tested at the Manufacturers works to prove its capability and compliance with this DEP 2.2LIFETIME AND RELIABILITY The machine and all individual items forming part of it, including, if applicable, the unit transformer, shall comply with this DEP and shall have an expected lifetime of at least 20 years. They shall be suitable for at least four years of uninterrupted operation under the conditions specified. Unless otherwisestatedin the requisition,the machine Manufacturershall include provisions for condition monitoring where relevant in order to maximize intervals between maintenance. The unit transformer of the machine, if applicable, shall comply with this DEP and DEP 33.65.40.31-Gen. 2.3EFFICIENCY High voltage synchronous machines shall have efficiencies not less than the following: 2-pole4-pole 98.0%97.5% These values are related to full load operation at the power factor specified in the requisition, and include the power consumption of the excitation system. For machines which require separately driven auxiliary devices, like ventilators for method of cooling IC6A6A1, the Manufacturer shall list the power consumption of these devices. DEP 33.65.11.31-Gen. January 1999 Page 6 PDF created with pdfFactory Pro trial version www.pdffactory.com 2.4GENERAL FEATURES OF DESIGN 2.4.1Degree of protection The minimum degree of ingress protection, in accordance with IEC 60529, shall be as follows: Minimum degree of protection Land and coastalMachine and auxiliariesindoor installationIP 44 installations outdoorIP 54 installation terminal boxes andIP 55 bearing housings Offshore installationsMachine and bearingIP 55 housing. Auxiliaries and terminalIP 56 boxes Add new clause: 2.4.2Methods of Cooling (IEC 60034-6) Unless otherwise specified, machines shall have air-to-air, self-cooling with cooling method IC 5A1A1, IC 6A1A1 or IC6A1A6 in accordance with IEC 60034-6. Air-to-water, self-cooled machines shall be supplied with cooling method IC 8A1W7 in accordance with IEC 60034-6. *Separately-cooled machines may be supplied only for special applications and only with the approval of the Principal. Attention shall be paid to the sparing of auxiliaries of separately- cooled machines. *The cooling air for the exciter shall be taken from the cooling air circuit of the machine (cooling method IC 3A1 in accordance with IEC 60034-6), except that for larger exciters where the above cooling method is no longer practical, exciter cooling shall be independent of the main machine cooling. In the latter situation the exciter cooling method shall be IC 6A1A1 or IC 8A1W7 in accordance with IEC 60034-6. The coolers shall be pressure-tested at 1.5 times the maximum working pressure for 15 minutes to demonstrate the withstand capability. If the water pressure in the cooler is controlled by a valve or pressure-reducing device connected to a water supply of higher pressure than the working pressure of the cooler, the cooler shall be designed for the higher pressure, and tested at 1.5 times the higher pressure value. The Principal shall submit to the Manufacturer the relevant data regarding the cooling water. DEP 33.65.11.31-Gen. January 1999 Page 7 PDF created with pdfFactory Pro trial version www.pdffactory.com PART II AMENDMENTS/SUPPLEMENTS TO IEC 60034-1 In this Part, certain sections of IEC 60034-1 are amended or supplemented, or new sections are added. Sections of IEC 60034-1 that are not mentioned shall remain applicable as written. DEP 33.65.11.31-Gen. January 1999 Page 8 PDF created with pdfFactory Pro trial version www.pdffactory.com Section 2Definitions Add new clause: 2.30GENERAL DEFINITIONS The Contractor is the party which carries out all or part of the design, engineering, procurement, construction, commissioning or management of a project or operation of a facility. The Principal may undertake all or part of the duties of the Contractor. The Manufacturer/Supplier is the party which manufactures or supplies equipment and services to perform the duties specified by the Contractor. The Principal is the party which initiates the project and ultimately pays for its design and construction. The Principal will generally specify the technical requirements. The Principal may also include an agent or consultant, authorised to act for, and on behalf of, the Principal. The word shall indicates a requirement. Add new clause: 2.31ADDITIONAL SPECIFIC DEFINITIONS Air-to-air cooled machine A closed machine with an integral or machine-mounted heat exchanger, using air as the primary and secondary coolant. Air-to-water cooled machine A closed machine with a heat exchanger using air as primary coolant and water as the secondary coolant. Certifi