This standard specifies the technical parameters and requirements of calcium carbide furnace transformers. This standard applies to three-phase oil-immersed calcium carbide furnace transformers with a rated frequency of 50Hz, a voltage level of 110kV and below, and a rated capacity of 50000kVA and below. JB/T 6303-2004 Technical parameters and requirements of calcium carbide furnace transformers JB/T6303-2004 Standard download decompression password: www.bzxz.net

ICS29.180
Machinery Industry Standard of the People's Republic of China JB/T6303-2004
Replaces JB/T6303--1992
Specification and technical requirements for calcium carbide furnace transformers carbide furnace transformers
Issued on March 12, 2004
Implemented on August 1, 2004
Issued by the National Development and Reform Commission of the People's Republic of ChinaForeword
2 Normative references
Technical parameters.
4 Technical requirements and other provisions
Table 1 Specifications and performance parameters of off-excitation voltage-regulating calcium carbide furnace transformersTable 2 Specifications and performance parameters of on-load voltage-regulating calcium carbide furnace transformersJB/T6303—2004
JB/T63032004
This standard replaces JB/T6303—1992 "Technical Parameters and Requirements for Calcium Carbide Furnace Transformers". This standard should be used in conjunction with JB/T5344.1-2004 "General Principles for Submerged Arc Furnace Transformers": Compared with JB/T6303-1992, the main changes of this standard are as follows: -- The writing format is in accordance with the provisions of GB/T1.1-2000 "Guidelines for Standardization Work Part 1: Structure and Writing Rules of Standards", Table 1 and Table 3 are merged into Table 1, and Table 2 and Table 4 are merged into Table 2 (see Chapter 3): The product performance parameters are modified: no-load loss, load loss are reduced by an average of 15%, no-load current is reduced by an average of 30%, and short-circuit impedance is reduced by an average of about 15% (Tables 1 to 4 of the 1992 edition: Tables 1 and 2 of this edition): -- Appendix A is cancelled.
This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Technical Committee for Transformer Standardization (SAC/TC44). The drafting units of this standard: Shenyang Transformer Research Institute, Changchun Transformer Co., Ltd. The main drafters of this standard: Dong Huisheng, Zhang Haoping, Xiao Lizhong, Zhang Maolu. The previous versions of the standards replaced by this standard are as follows: - JB/T6303-1992
Technical parameters and requirements of calcium carbide furnace transformers
This standard specifies the technical parameters and requirements of calcium carbide furnace transformers. JB/T6303-2004
This standard applies to three-phase oil-immersed calcium carbide furnace transformers with a rated frequency of 50Hz, a voltage level of 110kV and below, and a rated capacity of 50000kVA and below.
Normative references
The clauses in the following documents become the clauses of this standard through the reference of this standard. For all dated referenced documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, its latest version shall apply to this standard JB/T5344.1-2004 General Rules for Submerged Arc Furnace Transformers 3 Technical Parameters
The specifications and performance parameters of the non-excitation voltage-regulating calcium carbide furnace transformer shall comply with the provisions of Table 1. Table 1 Specifications and Performance Parameters of Non-excitation Voltage-regulating Calcium Carbide Furnace Transformer Rated
6, 10
6, 10
6, 10
Secondary Voltage
Rated Secondary
Connection Group
No-load loss, no-load current and short-circuit impedance are the values ​​at the highest secondary voltage, and the load loss is the value at the rated secondary voltage. Note 1: 3
Note 2: The rated capacity is 5000kVA~80 The voltage regulation level of 10000kVA to 16000kVA is 5 levels (the first 3 levels are constant power output, and the last 3 levels are constant current output): The voltage regulation level of the rated capacity is 10000kVA to 16000kVA is 7 levels (the first 5 levels are constant power output, and the last 3 levels are constant current output) 3.2
The specifications and performance parameters of the on-load voltage-regulating calcium carbide furnace transformer shall comply with the provisions of Table 2 Specifications and performance parameters of the on-load voltage-regulating calcium carbide furnace transformer Table 2
Rated capacity
10 000
Secondary voltage
Secondary voltage
155~110
160~100
Rated secondary voltage
Connection group
No-load loss
Load loss
Short-circuit impedance
No-load current
(35kV level)
(66kV level
and above)
JB/T6303-2004
Rated capacity
Secondary voltage
Secondary voltage||tt ||170~105
180110
190110
205125
225~145
240160
Table 2 (continued)
Rated secondary voltage
Connection group
(110kV level)
No-load loss
Load loss
No-load current
Note 1: No-load loss, no-load current and short-circuit impedance are the values ​​at the highest secondary voltage, and load loss is the value at the rated secondary voltage. Note 2: The number of voltage regulation levels is 19 (the first 5 levels are constant power output, and the last 15 levels are constant current output). Short-circuit impedance
(35kV level)
(66kV level
and above)
3.3 The calcium carbide furnace transformer with a rated capacity of 20000kVA50000kVA can be composed of three single-phase calcium carbide furnace transformers to form a three-phase calcium carbide furnace transformer group. The rated capacities of the single-phase calcium carbide furnace transformers are 6667kVA, 8333kVA, 10500kVA, 13333kVA, and 16667kVA respectively: their performance parameters are determined by the manufacturer and the user through negotiation. 4 Technical requirements and other regulations
4.1 The technical requirements of the calcium carbide furnace transformer shall comply with the provisions of JB/T5344.1. 4.2 The test items and methods, marking, packaging, transportation and storage and other requirements of the calcium carbide furnace transformer shall comply with the provisions of JB/T5344.1.
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