1、C227.4-06(reaffirmed 2011)Three-phase, pad-mounted distribution transformers with separable insulated high-voltage connectorsLegal Notice for StandardsCanadian Standards Association (CSA) standards are developed through a consensus standards development process approved by the Standards Council of C
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14、h copies, and only if this Legal Notice appears on each such copy.In addition, users may not and may not permit others to.alter this document in any way or remove this Legal Notice from the attached standard;.sell this document without authorization from CSA; or.make an electronic copy of this docum
15、ent.If you do not agree with any of the terms and conditions contained in this Legal Notice, you may not load or use this document or make any copies of the contents hereof, and if you do make such copies, you are required to destroy them immediately. Use of this document constitutes your acceptance
16、 of the terms and conditions of this Legal Notice.Update No. 2CAN/CSA-C227.4-06August 2007Note: General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit www.ShopCSA.ca for information about the CSA Standards Update Service.Title: Three-pha
17、se, pad-mounted distribution transformers with separable insulated high-voltage connectors originally published March 2006Revisions issued: Update No. 1 June 2007If you are missing any updates, please contact CSA Information Products Sales or visit www.ShopCSA.ca.The following revisions have been fo
18、rmally approved and are marked by the symbol delta () in the margin on the attached replacement pages:CAN/CSA-C227.4-06 originally consisted of 54 pages (x preliminary and 44 text), each dated March 2006. It now consists of the following pages: Update your copy by inserting these revised pages.Keep
19、the pages you remove for reference.Revised Table 11New NoneDeleted NoneMarch 2006 iiix, 120, and 2344June 2007 Cover, National Standards of Canada text, title page, and copyright pageAugust 2007 21 and 22 Canadian Standards AssociationThree-phase, pad-mounted distribution transformers with separable
20、 insulated high-voltage connectorsAugust 2007Table 8Physical sizes of transformers(See Clause 5.1.1.)Table 9Low-voltage terminals(See Clause 6.1.3.1.)Table 10Transformer fusing table for transformers with delta-connected high-voltage windings(See Clause 5.3.1.)Rated kVA capacity Type of feedTransfor
21、mer maximum BIL, kV Width, mm Figure75, 150 Radial 95 1280 375, 150, 225, 300 Loop 95 1480 475, 150, 225, 300, 500 Radial 125 1480 575, 150, 225, 300, 500 Loop 125 1480 6750, 1000, 1500, 2000, 2500, 3000 Radial 125 1730 7750, 1000, 1500, 2000, 2500, 3000 Loop 125 1730 8Transformer rating, kV AVoltag
22、e rating of transformer, V600Y/347 480Y/277 208Y/12075300 Figure 11(a) Figure 11(a) Figure 11(a)5001000 Figure 11(a) Figure 11(a) Figure 11(c)15002000 Figure 11(b) Figure 11(c) Nonpreferred25003000 Figure 11(c) Figure 11(c) NonpreferredTransformer, kV ATransformer rated high voltage, V4 160 8 320 12
23、 470 13 860Link Link Link Link75 4000358C08 4000358C05 4000358C05 4000358C05150 4000358C10 4000358C08 4000358C08 4000358C05*225 4000358C12 4000358C10 4000358C08 4000358C08300 4000358C12 4000358C10 4000358C08 4000358C08500 4000353C17 4000358C12 4000358C10 4000358C10750 4038361C05CB 4000353C16 4000358
24、C12 4000358C121000 4000353C17 4000358C12 4000358C121500 4038361C05CB 4000353C17 4000353C16(Continued)21(Replaces p. 21, March 2006)C227.4-06 Canadian Standards AssociationAugust 2007Table 11Transformer fusing table for transformers with grounded- wye-connected high-voltage windings(See Clause 5.3.1.
25、)*Some loss of cold-load pickup capability.The purchaser shall specify the kilovolt rating of the current-limiting fuse if the amount of delta-connected load is of concern. Fuse manufacturers recommend that the delta-connected load be limited to 50% of connected load unless fuses are rated for full
26、phase-to-phase voltage.Notes: (1) The current-limiting fuse voltage rating shall be greater than or equal to the phase-to-neutral voltage rating of the transformer in the highest tap position.(2) At the drawing approval stage, the manufacturer shall provide evidence that the current-limiting fuse su
27、pplied is compatible with the bayonet fuse at the designed impedance.Table 10 (Concluded)Transformer, kV ATransformer rated high voltage, V4 160 8 320 12 470 13 860Link Link Link Link2000 4000353C17* 4000353C17*2500 4038361C05CB* 4038361C05CB*3000 *Some loss of cold-load pickup capability.Notes: (1)
28、 The current-limiting fuse voltage rating shall be greater than or equal to the phase-to-neutral voltage rating of the transformer in the highest tap position.(2) At the drawing approval stage, the manufacturer shall provide evidence that the current-limiting fuse supplied coordinates with the bayon
29、et fuse at the designed impedance.Transformer, kV ATransformer rated voltage, V4160GrdY/ 24008320GrdY/ 480012 470GrdY/ 7200 .search and browse this document; and.print this document.Limited copies of this document in print or paper form may be distributed only to persons who are authorized by CSA to
30、 have suchcopies, and only if this Legal Notice appears on each such copy.In addition, users may not and may not permit others to.alter this document in any way or remove this Legal Notice from the attached standard;.sell this document without authorization from CSA; or.make an electronic copy of th
31、is document.If you do not agree with any of the terms and conditions contained in this Legal Notice, you may not load or use this document ormake any copies of the contents hereof, and if you do make such copies, you are required to destroy them immediately. Use of thisdocument constitutes your acce
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45、nal Standards of Canada rests with theStandards Council of Canada270 Albert Street, Suite 200Ottawa, Ontario, K1P 6N7CanadaCette Norme nationale du Canada est offerte en anglais et en franais.Although the intended primary application of this Standard is stated in its Scope, it is importantto note th
46、at it remains the responsibility of the users to judge its suitability for their particular purpose.Registered trade-mark of Canadian Standards Association(National Standards of Canada text inserted June 2007)Prepared byApproved byStandards Council of CanadaNational Standard of Canada(approved June
47、2007)Published in March 2006 by Canadian Standards AssociationA not-for-profit private sector organization5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044Visit our Online Store at www.ShopCSA.caCAN/CSA-C227.4-06Three-phase, pad-mounted distribution transf
48、ormers with separable insulated high-voltage connectorsTo purchase CSA Standards and related publications, visit CSAs Online Store at www.ShopCSA.ca or call toll-free 1-800-463-6727 or 416-747-4044.ISBN 1-55436-166-4Technical Editor: John ONeill Canadian Standards Association 2006All rights reserved
49、. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.(Copyright page replaced June 2007)CSA Standards Update ServiceC227.4-06March 2006Title:Three-phase, pad-mounted distribution transformers with separable insulated high-voltage connectorsPagination: 54 pages (x preliminary and 44 text), each dated March 2006To register for e-mail notification about any updates to this publicationgo to www.ShopCSA.caclick on E-mail Services under MY ACCOUNTclick on CSA Standards Update Se
