Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T10429-2004
Ladle refining furnace transformers
Ladle refining furnace transformers2004-03-12 Issued
2004-08-01 Implementation
National Development and Reform Commission of the People's Republic of China Issued
Control Standard Application Documents
3 Terms and Definitions
Product Type Safety
Technical Requirements...
Used Parts
Product Specifications
Performance Parameters.
Permissible Deviation
Fleece Level
Short Circuit Withstand Capacity』
|General structural requirements
6 Test frequency and methods
Construction test
Type test
Special test,
Test and maintenance methods
7 Marking, installation, transportation and
Appendix A (List of performance parameters of ladle furnace transformers): Specifications of ladle furnace transformers, including specifications of ladle furnace transformers, allowable deviations of ladle furnace transformers, wheels and rails of trolleys, performance parameters of transformers A.1 Performance parameters of 66kV on-load voltage regulation for refining furnaces Performance parameters of 10kV on-load voltage regulation for ladle furnaces JB/T 10429-2004
JB/r10429-:2004
This standard is formulated for the first time.
This standard should be used in conjunction with GB1094.1, GB10942, GB1094.3, GB1094.5 and JB/T8594. Appendix A of this standard is a comprehensive appendix.
This standard is proposed by the China Machinery Industry Federation. This standard was issued by the National Transformer Standardization Technical Committee (SACTC 44) is under the jurisdiction of the relevant authority. The drafting units of this standard are: Shenyang Transformer Research Institute, Changtun Transformer Co., Ltd. The main drafters of this standard are: Dong Chusheng, Zhang Haoping, Xiao Lizhong, Zhang Maotai 1
Ladle refining furnace transformer
JWT10429—2004
This standard specifies the terminology and definition, product model, technical requirements, test items and methods, marking, packaging, transportation and storage of ladle refining furnace transformers.
This standard is applicable to the manufacture and use of ladle refining furnace transformers. 50Hz rated, 110kV and below, rated capacity 3000kVA and below for refining furnace transformers:
2 Normative reference documents
The clauses of a standard document become the clauses of this standard through reference in this standard. All referenced documents with a specified date (excluding the date of the reference) or revised versions are not applicable to this standard. Before that, all parties that have reached an agreement based on the actual standard are encouraged to study whether these documents can be used. For the latest version, for any document without a date, the latest version shall apply to the following ten standards: GB/T191
Packaging, storage and transportation drawings and markings (GB19)-2000, ISO780:1997) Voltage transformer Part [Part: General purpose] (G1094.1-1996, m606-1:1993) GB[094.1
Voltage transformer Part 2: Temperature rise (J094.2-1996, 60076-2:13) GB 1094.2
GB1094.3 Power transformer Part 3: Partial water-insulation, acid and air insulation test GB1004.3-2003cgLEC 60K76-3: 2(K0)
CB1094.5 Power transformer Part 5: Ability to withstand short circuit (GB1004.3-20U3, CV60076.5: 2000) GB/T29(.11992 Basic requirements for electric power transformers (1egEC60050-12I: 1978GB2500.15-197 Electrical engineering technology for transformers, transformers, voltage regulators and devices (4F60050421-1990: 6n950 32: 19863
GB/T6451-19.= Oil-fired power transformer drum number and requirements B/T50] square transformer test guide
[/T3837 transformer: musical instrument type crystal type reduction method JB8594-flammable furnace
3 terms and definitions
GB, T290D.1GB/200.15, GH1094.1 and JB/T8544 and the following terms and definitions apply to this standard
ladle refining furnace transformer laulewfiringnurmaee transfonmers are used as transformers for ladle refining furnace electricity
"inner-sealed" type steel multi-refining furnace transformer innmer-cunmeeleddellaconnectionJadlerenninefuracetransforllers
the second group is in the corrective box as the complete three-form connection and then leads to the ladle refining furnace transformer. 4 Product type implementation
Turn over the package price good transformer "number maintenance method JBT383 purchase regulations. JB/I10429-2004
5 Technical requirements
Use case
The use conditions of the tempered refining transformer shall comply with the relevant provisions of GB101 small or transformer. Product specifications
The product specifications of the non-excitation voltage regulating ladle refining furnace transformer shall comply with the provisions of the table, Table 1 Non-excitation voltage regulating ladle refining transformer specifications - telephone
Secondary center
18164150138120
330212197
184162145
17:155
Rated three-time voltage
11 089
12 483
:4 723
17 157
20 620
1: The front stage of the secondary power output is the power output, and the other secondary power output is the load-carrying connection group
standard impedance
reduction method
Note: The constant variable is the capacity when the power output is the lowest secondary output, and the capacity is also the secondary voltage ratio reduction method under any flow: 3: The technology is the installation specification under the secondary power ratio in a certain primary current when the constant power output is the most effective under the primary power 5.2.2
The product specifications of the on-load voltage regulating steel refining furnace transformer meet the current requirements in Table 2. Table 2 On-load voltage regulating steel refining furnace transformer specifications Rated capacity
15 000
25 0co
31 5003
40 0c0
Primary current expansion
Secondary current creepage V
Pull current output
265-240
270 350
::5 --285
335--295
295--745
430--·380
145--495
17$ -515
240·-160
250--170
285--165
295--170
345~·190
380·2:0
465--270
Defined for the second autumn current
24 056
25 868
32 413
39 142
47 859
29 665
58 3:x
voltage regulation number
short circuit range
(3SkV)
and above)
1, the rated value is the maximum capacity when the secondary voltage is low, and the current output is the value of the secondary voltage at high voltage. 3: Rated secondary voltage refers to the value of the lowest secondary voltage at constant power output, Note 4: The short circuit resistance of the "bracket" type steel ladle frequency protection transformer can be appropriately increased, generally ~1, 5.3 performance data
the empty support, load consumption, no-load current, and output of the steel ladle new plate furnace transformer are specified! 5.4 Allowable Deviation The difference between the actual measured value and the specified value of the copper-clad refining furnace transformer performance should comply with the requirements of Table 3. 2 Short-circuit resistance County voltage science 5.5 Temperature rise
No-load load voltage
No-load thermal battery
Table 3 Allowable deviation
Change the group to open triangle
Secondary connection is "inside-out" type connection
Local connection
Other local regulations
Confirm ()
JBT10429-2004
+15 But the gain shall not exceed, [0
55.1 The temperature rise limit value of the ladle circulating furnace transformer at .1 times the rated current shall comply with the provisions of GBT094.2. 5.5.2 For other relevant provisions on temperature control of ladle refining furnace, please refer to GB094.2: 5.6 Insulation level
The insulation level of ladle refining furnace transformer shall comply with the provisions of GB1094.3: 5.2
Short circuit resistance
The pressure of the tap changer of ladle refining furnace shall comply with the provisions of GB1094.5. 5.8 General structural requirements
6.8.1 The oil level gauge, signal thermometer, signboard, grounding bolt, operating mechanism and sensitive device of tap changer of ladle refining furnace transformer shall not be on the secondary side.
5.8.2 For transformers with rated capacity of 100n0kVa and above, a filter type electric current transformer can be provided. The technical data of the parts shall be determined by negotiation between the manufacturer and the user.
5.8.3 For transformers with rated capacity of 100HHOkVa31500kVA, the primary winding generally adopts "internal automatic control" and the tertiary winding is arranged in series with the terminals of the transformer, as shown in Figure 5.
5.84 The ladle refining transformer is equipped with a trolley with multiple traction. The wheels can be turned. The wheelbase or soft pitch shall comply with the requirements of Figure 4.
JB/T 104292004
Center of wheel
Table 4 Wheelbase and track gauge of trolley
Note: Due to the structural principle, the longitudinal wheelbase or track gauge of the trolley can be different from the transverse distance (or the specified value or the value of the sheet metal). 5.8.5 The transformer of the ladle refining furnace should be equipped with a gas relay and a pressure release valve. 5.8.6 All ladle refining transformers should be equipped with temperature measuring elements for long-distance temperature measurement. 5.8.7 Regarding the cooling system of the ladle refining furnace, the oil temperature sensor, oil tank and accessories, if there are special requirements in this standard, the provisions of GHT6451 shall be met.||tt| |Test items and methods
6.1 Tests to be performed
1) Rectification resistance measurement;
b) Ratio measurement and connection number inspection
) Short-circuit impedance and load loss measurement:
) No-load current and no-load loss measurement:
) Absorption factor (tan) and winding-to-ground typical resistance (35kV and above):
g) External applied voltage test:
l) Withstand voltage test
1) On-load tap changer test:
j) Oil refilling test (electric level is 66kV and above) Or the product with rated capacity of A0MKVA or above, before it is put out! The gas separation test in oil should be carried out successively): oil sales and storage test, [medical electric shock test (110kV level). 6.2 Type test a) Temperature test, 5) Full wave shock test (66k and below: C) Oil tank test, 6.3 Special test ) Capacitance measurement between dry group and ground and system group: h, Transient voltage transmission characteristic measurement: Sequence impedance measurement: d) Short circuit bearing capacity test: e: j5 level determination
no-load current harmonic measurement:
absolute combustion special test.
6.4 Test method
Test type and test method of ladle pressure drop GB1094.1, GB1094.2, CB1094.3, B104.5, (H6451 and JBT501 regulations:
marking, packaging, transportation and storage
7.1 All wiring terminals and grounding devices of ladle anti-refining transformers shall have clear signs: and there shall also be signs that are not easily obscured and placed in a visible place. You shall clearly note the following: a! Product name, model:
b! Certification code:
.) Manufacturing unit:
d Factory number:
) System adaptability:
Number of phases:
: Rated voltage, unit is kVAMVAr
: Rated frequency, unit is H2:
Rated voltage of each winding (value at rated capacitance), unit is or k) Rated current of each winding, unit is A or kA: 5) Connection station number and wire winding connection size:
J8/10429—2004||tt ||The tap voltage of each tap is kept according to the vertical position (the first tap position corresponds to the highest secondary voltage), the tap voltage and the tap capacity m. Use conditions: Indoor:
) Cooling method:
0) Insulation level:
β) Voltage regulation method:
The short-circuit resistance value expressed as a fraction, the value under the lowest secondary voltage and the value under the lowest power input:
r) Weight (total weight, oil bearing, body weight, transportation weight), the unit is or! Note: The product with tubular current transformer should be issued with the technical data of the current transformer. The packaging mark of the 72 steel ladle precision furnace blue transformer product should comply with the provisions of 6B191, and the packaging box composition should comply with the provisions of the relevant standards. During transportation and storage, measures should be taken to prevent the upper outlet terminal from being exposed to H. .3 The factory technical documents of ladle refining furnace transformer include safety instructions, product certificate, routine test report, product appearance, nameplate, product disassembly list, yellow box list and attached product instructions, etc. JBT10429-2004
Appendix A
(Material Appendix)
Ladle refining furnace transformer performance data
A.1 The performance parameters specified in this standard are reference values for inquiry and ordering. Due to different product structures, the performance parameters of products are also different. The parties using this standard are allowed to negotiate and adopt other standard values. A.2 The performance parameters of the transformer for the non-excitation refining furnace shall comply with the provisions of Table A.2. Table A. Performance parameters of the transformer for the non-excitation refining furnace Rated voltage
Empty power consumption
Load loss
Note: Empty power consumption and load power consumption refer to the values at the highest secondary voltage, and load power consumption refers to the values at the lowest primary voltage when the power is output. A.3
The performance parameters of the transformer for the non-excitation refining furnace shall comply with the provisions of Table A.2. 4.2
Determined voltage
12 57 Regarding the transformer and cooling system of the ladle refining furnace, oil temperature control device, oil tank and accessories, if there are special requirements in this standard, the effect shall comply with the provisions of GHT6451.
Test items and methods
6.1 Tests
) Rectification resistance measurement;
b: Ratio measurement and connection number inspection
) Short-circuit impedance and load loss measurement:
) No-load current and no-load loss measurement:
) Sub-measurement of the loss figure (tan) and the winding-to-ground typical resistance (35kV and above): f Absorption ratio or gradation index measurement:
g) Externally applied voltage test:
l) Withstand voltage test
1) On-load tapchanger test:
j) Oil renewal test (for products with a rating of 66kV and above or a rated capacity of A0MKVA, a test on the separation of dissolved gases in the oil should be carried out before release):
k: Oil sales and storage test,
[Medical electrical shock test (110kV level). 6.2 Type tests a) Temperature test, b) Full-wave shock test (66k and below: C) Tank test and strength test, 6.3 Special tests a) Capacitance measurement of dry group to ground and between groups: h, Transient voltage transmission characteristic measurement:
Sequence impedance measurement:
d) Short-circuit bearing capacity test:
e) Level measurement:
No-load current harmonic measurement:
Special flame retardant test.
6.4 Test method
Test type and test method of ladle pressure drop GB1094.1, GB1094.2, CB1094.3, B104.5, (H6451 and JBT501 regulations:
Marking, packaging, transportation and storage
7.1 All wiring terminals and grounding devices of ladle protection equipment shall be clearly marked: There shall also be a label that is not easily penetrated and placed in a visible place.
Clearly mark the following as follows: a! Product name, model:
b! Certification code:
.) Manufacturing unit:
d! Factory number:
) System:
Number of phases:
: Rated load, unit is kVAMVAr|| tt||: Rated frequency, unit is H2:
Rated voltage of each winding (value at rated capacity), unit is or kA: 5) Connection station number and winding connection size:
J8/10429—2004
The tap voltage of each tap (the first tap position corresponds to the highest secondary voltage), tap voltage and tap capacity m. Conditions of use: Indoor:
) Cooling method:
0) Insulation level:
β) Voltage regulation method:
The short-circuit resistance expressed as a fraction of the actual value, the minimum secondary voltage under the value and the minimum value of the power input to the user:
r) Weight (total weight, oil bearing, body weight. Upper section oil tank weight, transportation weight), unit is or! . Note: For products with tubular current transformers, the technical data of the current transformers shall be provided. 72 The packaging mark of ladle refinery transformers shall comply with the provisions of 6B191, and the packaging box shall comply with the provisions of the relevant standards. During operation and storage, measures shall be taken to prevent the outlet terminals from being exposed to water. 3 The factory technical documents of ladle refinery transformers include safety instructions, product certificates, routine test reports, product appearance, nameplates, product disassembly lists, yellow box lists and product instructions for accessories, etc. JBT10429-2004
Appendix A
(Material Appendix)
Ladle refinery transformer performance data
A.1 The performance parameters specified in this standard are the reference values for inquiries and orders. Due to different product structures, the performance parameters of the products are also different. The parties using this standard are allowed to negotiate and adopt other standard values. A.2 The performance parameters of the transformer for the non-excitation refining furnace shall comply with the provisions of Table A.2. Table A. Performance parameters of the transformer for the non-excitation refining furnace Rated voltage
Empty power consumption
Load loss
Note: Empty power consumption and load power consumption refer to the values at the highest secondary voltage, and load power consumption refers to the values at the lowest primary voltage when the power is output. A.3
The performance parameters of the transformer for the non-excitation refining furnace shall comply with the provisions of Table A.2. 4.2
Determined voltage
12 57 Regarding the transformer and cooling system of the ladle refining furnace, oil temperature control device, oil tank and accessories, if there are special requirements in this standard, the effect shall comply with the provisions of GHT6451.
Test items and methods
6.1 Tests
) Rectification resistance measurement;
b: Ratio measurement and connection number inspection
) Short-circuit impedance and load loss measurement:
) No-load current and no-load loss measurement:
) Sub-measurement of the loss figure (tan) and the winding-to-ground typical resistance (35kV and above): f Absorption ratio or gradation index measurement:
g) Externally applied voltage test: wwW.bzxz.Net
l) Withstand voltage test
1) On-load tapchanger test:
j) Oil renewal test (for products with a rating of 66kV and above or a rated capacity of A0MKVA, a test on the separation of dissolved gases in the oil should be carried out before release):
k: Oil sales and storage test,
[Medical electrical shock test (110kV level). 6.2 Type tests a) Temperature test, b) Full-wave shock test (66k and below: C) Tank test and strength test, 6.3 Special tests a) Capacitance measurement of dry group to ground and between groups: h, Transient voltage transmission characteristic measurement:
Sequence impedance measurement:
d) Short-circuit bearing capacity test:
e) Level measurement:
No-load current harmonic measurement:
Special flame retardant test.
6.4 Test method
Test type and test method of ladle pressure drop GB1094.1, GB1094.2, CB1094.3, B104.5, (H6451 and JBT501 regulations:
Marking, packaging, transportation and storage
7.1 All wiring terminals and grounding devices of ladle protection equipment shall be clearly marked: There shall also be a label that is not easily penetrated and placed in a visible place.
Clearly mark the following as follows: a! Product name, model:
b! Certification code:
.) Manufacturing unit:
d! Factory number:
) System:
Number of phases:
: Rated load, unit is kVAMVAr|| tt||: Rated frequency, unit is H2:
Rated voltage of each winding (value at rated capacity), unit is or kA: 5) Connection station number and winding connection size:
J8/10429—2004
The tap voltage of each tap (the first tap position corresponds to the highest secondary voltage), tap voltage and tap capacity m. Conditions of use: Indoor:
) Cooling method:
0) Insulation level:
β) Voltage regulation method:
The short-circuit resistance expressed as a fraction of the actual value, the minimum secondary voltage under the value and the minimum value of the power input to the user:
r) Weight (total weight, oil bearing, body weight. Upper section oil tank weight, transportation weight), unit is or! . Note: For products with tubular current transformers, the technical data of the current transformers shall be provided. 72 The packaging mark of ladle refinery transformers shall comply with the provisions of 6B191, and the packaging box shall comply with the provisions of the relevant standards. During operation and storage, measures shall be taken to prevent the outlet terminals from being exposed to water. 3 The factory technical documents of ladle refinery transformers include safety instructions, product certificates, routine test reports, product appearance, nameplates, product disassembly lists, yellow box lists and product instructions for accessories, etc. JBT10429-2004
Appendix A
(Material Appendix)
Ladle refinery transformer performance data
A.1 The performance parameters specified in this standard are the reference values for inquiries and orders. Due to different product structures, the performance parameters of the products are also different. The parties using this standard are allowed to negotiate and adopt other standard values. A.2 The performance parameters of the transformer for the non-excitation refining furnace shall comply with the provisions of Table A.2. Table A. Performance parameters of the transformer for the non-excitation refining furnace Rated voltage
Empty power consumption
Load loss
Note: Empty power consumption and load power consumption refer to the values at the highest secondary voltage, and load power consumption refers to the values at the lowest primary voltage when the power is output. A.3
The performance parameters of the transformer for the non-excitation refining furnace shall comply with the provisions of Table A.2. 4.2
Determined voltage
12 5The performance parameters of the transformer without dynamic voltage regulation of ladle smelting furnace are as follows: ||tt| ...The performance parameters of the transformer without dynamic voltage regulation of ladle smelting furnace are as follows: ||tt| ...
H'3THH
Torque loss
Negative torque loss
Relevant current
Note: No-load or no-load current and no-load current refer to the value at full secondary voltage: Negative torque loss refers to the sensitive value A under the condition of low secondary current when constant power is output
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