Standard No.:	TB/T 3393.2-2015
English Name:	High-vdtage transformer on board rolling stock. Part2: Inductive voltage transformer
Chinese Name:	机车车辆高压互感器 第2部分：电磁式电压互感器
Professional Classification:	TB    Professional Standard - Railway Transport
Issued by:	National Railway Administration
Issued on:	2015-07-02
Implemented on:	2016-1-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	200.0
Delivery:	via email in 1 business day

High-voltage transformer on board rolling stock - Part 2: Inductive voltage transformer 1 Scope This part of TB/T 3393 specifies the service conditions, technical requirements, inspection methods, inspection rules, RAMS requirements, marking, packaging, transportation and storage of high-voltage inductive voltage transformer on board rolling stock. This part is applicable to inductive voltage transformers (hereinafter referred to as transformers) for electrical measurement and protection of rolling stock with rated voltage of 25kV and rated frequency of 50Hz. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB 311.1-2012 Insulation co-ordination - Part 1: Definitions, principles and rules (IEC 60071:2006, MOD) GB/T 775.1-2006 Test method for insulators - Part 1: General test methods GB 1207-2006 Inductive voltage transformers (IEC 60044-2:2003, MOD) GB/T 2423.1-2008 Environmental testing for electric and electronic products - Part 2: Test methods - Tests A: Cold (IEC 60068-2-1:2007, IDT) GB/T 2423.2-2008 Environmental testing for electric and electronic products - Part 2: Test methods - Test B: Dry heat (IEC 60068-2-2:2007, IDT) GB/T 2423.4-2008 Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat, cyclic (12h+12h cycle) (IEC 60068-2-30: 2005, IDT) GB/T 2423.17-2008 Environmental testing for electric and electronic products - Part 2: Test methods - Test Ka: Salt mist (IEC 60068-2-11:1981, IDT) GB/T 2423.22-2002 Environmental testing for electric and electronic products - Part 2: Test methods - Test N: Change of temperature (IEC 60068-2-14:1984, IDT) GB 4208-2008 Degrees of protection provided by enclosure (IP code) (IEC 60529: 2001, IDT) GB/T 7252 Guide to the analysis and the diagnosis of gases dissolved in transformer oil (GB/T 7252-2001, neq IEC 60599: 1999) GB/T 7595 Quality of transformer oils in service GB/T 13384-2008 General specifications for packing of mechanical and electrical product GB/T 16927.1-2011 High-voltage test techniques - Part 1: General definitions and test requirements (IEC 60060-1:2006, MOD) GB/T 21562-2008 Railway applications - Specification and demonstration of reliability, availability, maintainability and safety (RAMS) (IEC 62278:2002, IDT) GB/T 21563-2008 Railway applications - Rolling stock equipment - Shock and vibration tests (IEC 61373:1999, IDT) 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB 1207-2006 apply. 4 Service conditions 4.1 General service conditions 4.1.1 The transformer shall be able to operate normally under the following service conditions: a) altitude: not exceed 2,500m; b) external ambient temperature of rolling stock during running: -40℃~+45℃; internal temperature of rolling stock: -40℃~+70℃;

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Service conditions 5 Technical requirements 6 Inspection methods 7 Inspection rules 8 RAMS requirements 9 Marking, packaging, transportation and storage