JB/T 2426-2004 Technical parameters and requirements for three-phase transformers for power plants and substations
Some standard content:
ICS29.180
Machinery Industry Standard of the People's Republic of China
JB/T 24262004
Replaces JT24261992
Specification and technical regulations forthree-phase station servicetransformers2004-03-12 Issued
2004-08-01 Implementation
Published by the National Development and Reform Commission of the People's Republic of China Foreword
1 Scope
Normative references
3 Technical definitions.
4 Product model
Performance indicators
Technical requirements.
Specification
Allowable deviation of air-cut ratio
Divided capacity.
Tap capacity.
Tap positioning
Current impulse
Can withstand the temperature circuit
Sound level,
Absolutely half the water.
Size and load conditions,
Correction, technical requirements for components
Full protection capacity of transformer
Cooling system,
Installation and protection equipment,
Outer shell, foil box,
Current and device
Terminal and bushing
Connection and grounding device:
Question door, specification door and oil case,
Terminal box,
Type transformer
7.2, immersion transformer
8 Ring, single installation, purchase and transportation
8.2 Packaging,
8.3 This is in accordance with the code of Xiaoping: Current Appendix:
JB/T 2426-2004
JB/T2426-2004
Record B
Appendix C
(Informative Appendix) Tap and tap voltage (Informative Appendix) Natural pool ring air-cooled oil-immersed transformer in air-cooled state (Normative Appendix) Circuit impedance of damp-type transformer Table 1S0kVA~16DkYA Double-winding non-excited pressure transformer 30kVA~2000VA Double-winding non-sending and regulating distribution transformer Table 2
200kVA--16K1kVA Double-winding on-load tap-changing oil-immersed distribution transformer 1XkVA-315KVA Double-winding paper non-excited pressure oil-immersed power transformer 10000VA500EVA Double-winding on-load tap-changing oil-immersed power transformer ..16 KHVA·HHOKYA excitation pressure regulating oil type split power transformer. 16UoUkA~63000kA on-load pressure regulating oil type split double power transformer split transformer medium splitting quantity
tear standard machine root strength test value
foot and bracket position and size small...
the following transformer loss request special
note love transformer loss level generation
light x2.5% tap voltage value
18x1.25 device tap voltage value
air white cold recommended wear,
25000kVA-50000kVA non-excitation pressure regulating standard split transformer 250kVA>D000kVA on-load pressure regulating oil type fractional rectifier, 20
JB/T2426 —2504
This standard replaces 1H2261992 "Technical parameters and requirements for single-phase transformers for power generation and substations". Compared with 2426, this standard has the following changes:
Compared with the existing standard, the standard is in accordance with the provisions of T1.12H0 standardization guide part "Part 1: Standard structure and abbreviation rules! Text:
- Added the "Product model" list (Section 4): Canceled the "Part 2" chapter, and its content was merged into the "Technical requirements" section (Section 5 of the 1992 edition):
Supplemented the content of the enclosed and wound transformer, eliminated the "Standard does not follow the provisions of the enclosed and wound transformer"; added the load consumption value and capacity under the F and 1I insulation heat resistance grades and increased to 100KVA (Section 6 of the 1992 edition). Table 1 of Chapter 3: The performance parameters of Chapter 1 and Chapter 5 of this edition have been modified and adjusted accordingly according to the requirements of GB/T 10228-1997 and GB.T6451-1999: Table 1-Table 7 of Chapter 3 of 1992 edition; Technical requirements, test items, etc. in Chapter 1 are also revised according to the relevant provisions of GB/T 10228-1997 and GB6455-1999: Chapter 4, 5, 6 and 7 of 1992 edition; Chapter 6.7 and 8 of this edition) Appendices A and D of this standard are normative, and Appendix B and Appendix C are informative. This standard is proposed by the China Machinery Industry Federation. This standard is approved by the Technical Committee for Transformer Standardization (SAC/TC44). This standard is initiated by: Jiyang Transformer Research Institute, Yangtze River Water Conservancy Engineering Institute, Baoding Guanwei Special Transformer Co., Ltd., Puguo Power Equipment Co., Ltd., Special Transformer Factory, Special Transformer Factory, Dongwu Transformer Factory:
The drafters are: Xisheng, Shu Dufu, Sun Xinzhong, Zhang Min, Jun Jian, Huang Xinnan, Zhang Anhong, 1. Yiguang The previous virtual versions of the standards replaced by this standard are: 3B2426-1978, JHT2426-1992
JB/r24262004
Due to the particularity of the conditions, power plants and substations are required to use three-phase transformers with higher thermal stability than general power transformers: JB/2426-1992 The technical parameters and requirements of three-phase transformers for power plants and substations have been implemented recently! Over the years, this standard has played an important role in the design and production of three-phase transformers in power plants in my country. With the continuous development of my country's transformer manufacturing technology, the performance parameters of this standard should be improved, otherwise it will restrict the development of power plants and substations' self-use transformer production technology. This standard has been revised. According to the relevant national standards, the performance and performance of the three-phase transformers have been improved, and the technical requirements, test items and other contents have been adjusted accordingly and standardized. This revision has greatly improved the technical level of the standard, and can play a positive role in the improvement and development of power generation and substation self-use transformer products. 1 Standard JFI/T2426--2004 Technical specifications and requirements for three-phase transformers for power plants and substations This standard stipulates the product models, performance specifications, technical requirements, design items and markings, packaging, storage and transportation of three-phase F-type and oil-fired transformers for power plants and substations. This standard applies to three-phase transformers for power plants and substations with a rated frequency of 50Hz, including: a: L grade is 20KV and below, rated capacity is 1WkVA--16 MKVA, insulation thermal class is H. F, H level indoor type transformer, voltage level 3kV220kV level, rated capacity 30kVA3500kVA dual energy group oil type transformer: c) voltage level 15kV--220kV level, rated capacity 160K00xVA~63(MKkVA oil type split transformer,? Normative reference documents
"The clauses in the document become the standard clauses through the reference of the standard. The effective date of the document, and then all The amendments or revisions are not applicable to this standard. However, the latest versions of these documents may be used by all parties involved in the research according to the core standards. For undated referenced documents, the latest versions are applicable to this standard. GB/19 Packaging, storage and transportation diagrams (GB/T191--2000, ISO780:1997) 1 Electric transformers - Part 1 General (GB1094.1-1996, C60076-1:1393 GB 1094.1
G 1094.2 Power transformer Part 2: Temperature (GB[094.2--1996, egTC60.076-2:1993) GB1(4.3 Power transformer Part 3: Insulation level, insulation test and external insulation air, gap (B104.3--2K) 324VLEC600765-2000:
G1094.5 Power transformer Part 5: Ability to withstand ene circuit (GB1094.52003, q.C600755: (00GH/2KKJ.15-Electrical code transformer, mutual inductance, three-way electric technology equipment nc positive C6(H50-42]: [991: TC600.50-321:1986
GB4208—1993Enclosure protection grade (F code) 1c EN 60529:99) GB(4501H Transformer (GB6450—1986, ey EN 60726:1982GBT6151---1999Technical parameters and requirements for phase-change power transformers GB/T10228··1997Technical parameters and requirements for dry-type electric transformers JRT383Product model numbering method for transformers JBT1088—20046kV~500kV power transformers 3Terms and definitions
The terms and definitions used in this standard shall conform to the current definitions of GB6450, GD1094.1 and GB/T2900.15 4: Product model||t t||Production type contract shall comply with the provisions of JBTB37. For the determination of relevant data consumption level codes, please refer to A5 Performance parameters
The performance parameters comply with the provisions of Table 1 and Table 7, among which Yyrro and YNyro connection types are only applicable to three-phase three-phase iron core transformer products
JB/T2426—2004
Rated capacity
130kVA~18000kVA double-group non-excitation voltage regulating dry-type transformer combination
Tap application
3.156.3:10.5
13.8.15.75
.3.15.6.3.10.5
13.8.15.75
[3.15, 6.3, 10.5 ||tt | 8. :5.75
3.15. 6.3, 10.5 | 15.75
3.15. 6.3. 10.5
13.8,:5.75
13.8,15.75
3.15. 6.3,10.5
13.8.15.75
13.8，15.75
Joint group
Empty bracket
(100T)
Negative cutting loss
F(120H:145c)
Load range
Short circuit distance resistance
(6.5).8.0
(6.5).8.0
4.0-. 7.0.
.6.5).8.0
(6-5). 8.0 | ||Tap range
13.5.[5.75
13.8, 15.75
13.8.15.75
13.8.J5.75
13.8.15.75
13.8,15 75
18，%
13.8.15.75
13.8.15.75
1【Continued》
Connection group air-fuel torque
Color plastic consumption
F120TH145)
JIB/T24262004
Idle power disease! New monitoring protection
(8.9).11.
+1，Based on the requirements of the goods, the high-voltage sub-building can be refunded 12×5%. It can also supply single-phase unexcited transformers and single-phase or on-load voltage regulating transformers. The performance parameters in the table are applicable to products with small impedance. The performance parameters of products with short circuit resistance or large impedance shall be determined by the supplier and demand party. Note: Short circuit resistance can be reported according to the requirements, and the general requirements shall be reported separately. Note 4: The numbers in brackets are the reference resistances of various stages. 5: Please select the products with short circuit resistance in the table as much as possible. The performance parameters shall be negotiated by the supply and demand party when selecting. 24262004
Rated capacity
Table 2BDkVA~2000kVA double mirror group non-excitation voltage regulating oil diffused distribution transformer voltage combination
3.13,6.9.10.5
3.13, 6.3. 10.5
3.15, 6.3,10.5
3,15,6.3,10.5
3.15. 63. 105
3.15，6.3.10.
13.9-15.75
3.15,6.4-19.5
13.9.[5.75
.3.15. 6.3.10.5
13.8.15.75,16. 20
14,35,38.5
3.15. 6.3. 10.5
13.8.15.75.18.20
24,35.38.5
3.15. 10.5 ||tt | 6.3,j0.5 | 75, 18, 20
24, 35. 38.5
3.15, 6.3. 10.5
I3.8, 15.75- 1B, 20
24,35.3R.5
Breakdown range
Empty temperature
Short circuit resistance
Rated capacity
2 [HUKS
Voltage
3.15,6.3,10.5
[13.8,15.75.15,20
24,35,3R.
Tap connection
Table 2 (continued)
Connection group
Note 1: According to the order requirements: High voltage tapping specification can be registered with its soil 2×25%, calculated 2# short impedance value table maintenance customer needs to propose, empty loss material
Collection
JB/E2426-2D04
No-load battery
Table 3200kVA-160DkVA double winding on-load voltage regulating oil leakage distribution transformer rated ratio
I tic>
Electric music combination
Sub-conversion room
Calculation: Constant road positive resistance value can be set according to user needs, land gate
Air power consumption:
Negative disk proposed
Short accompanying resistance
Road pit
Air charge power certificate
Table 410D0kVA~31500kVA double-shrinkage group non-excitation voltage regulating oil-filled power transformer new will be displayed
10.5. 13.8- 15.75..
40.5,13.8,13.75
110121
Tap range
Connection group
Yyno,EynlwwW.bzxz.Net
yNdIl, Dyn!
YNymO. YNd!!
Empty backspace:
Negative light backspace
No-load flow
Short jump test
JB7T 24262004
Capacitor
16[HK>
3 SIK)
Voltage group
Tap range
10.5,13.8,15.75
35,38.5
66, 59
10.5, 13.8, 15.751 | tt||13.8.15.75
13.8,[5.75. 24 | t||YNdII. Dynl
Ynyo,YNd1i
Yynty,Dym1
YNdH,Dyl
YoynoYNd
Yynfl. EJyn!
YNEl,Dyat
Ynyne,YNal!
Yym(0,1)>ym1
YNdI1. Dynl
Yyno,Dynl
YNd. Dyn!
No-load load
Maximum load
..82.7
.148.0
No-load current
Short-circuit resistance
(7.5].9.0
Note 1: Short-circuit resistance can be temporarily reported by the user. The short-circuit resistance value in the table should be used as little as possible. The selection of the parameters is negotiated by both parties.
2: According to the requirements, the transformer with YyU and YNymO windings is equipped with a fixed group. The performance parameters are negotiated by both parties. 10000
12 500
JR/T2426—20D4
Table 510000kVA-3150DkVA dual-energy group on-load tap-changing oil-filled power transformer voltage combination
35, 38.5
63, 56
35, 38.5
nto, t15
220230
Tap specification
: 4×2.5
8× 1,25
±8×1.25
34×2.5
Fiber
YKdil,Dml
Dryme1
YNdjl,Dyal
YNymn)
YNdJI,Dynl
Empty cost twist loss
Fish intake loss
Empty cooked electric road medical resistance
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