GB/T 37009-2018 in English
VALIDVariable-frequency drive for metallurgical industry
- Issued on:2018-12-28
- Implemented on:2019-07-01
- File Format:PDF
- Delivery:Via email within 5 business days
$592.00
| Standard No: | GB/T 37009-2018 |
| Document status: | VALID |
| Title in English: | Variable-frequency drive for metallurgical industry |
| Title in Chinese: | 冶金用变频调速设备 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2018-12-28 |
| Implemented on: | 2019-07-01 |
| ICS Classification: | 29.240.99-Other equipment related to power transmission and distribution networks |
| Chinese Classification: | K46-Power semiconductor device and parts |
| Professional Classification: | GB-National Standard |
| Related Keywords: | metallurgical industry introduction key points
metallurgical frequency conversion equipment standards variable-frequency drive metallurgical plants main drive |
| Related Topics: | Change
Rapid Explosion Equipment Flow rate device microwave metallurgy GBT37009 GB/T 37009-2018 Metallurgical intermediate frequency furnace related Metallurgical equipment basic design Metallurgical line design |
《GB/T 37009-2018冶金用变频调速设备》由TC518（全国变频调速设备标准化技术委员会）归口，主管部门为中国电器工业协会。
Introduction
Key points of metallurgical frequency conversion equipment standards
| Technical dimensions | Industrial-grade requirements | Metallurgical-grade strengthening requirements |
|---|---|---|
| Overload capacity | 150%/60s | 300%/0.25s cycle |
| THD limit | ≤8% | ≤5% (rated operating conditions) |
| Protection level | IP20 | IP54 (dust environment) |
Analysis of key technical requirements
The standard places special emphasis on the common DC bus configuration, whose voltage source topology can increase the utilization rate of regenerative energy by more than 40%. The three overload modes specified in Clause 7.3.7 are particularly suitable for impact load scenarios such as rolling mills and coilers.
Special Electromagnetic Compatibility
For the high interference environment of metallurgical plants, the standard requires:
- Radio frequency immunity reaches 10V/m (80MHz-1GHz)
- Electrostatic discharge protection 8kV (air discharge)
- Fast transient pulse group 4kV (power port)
Measured cases show that the use of triple shielding wiring can reduce the communication bit error rate to 10⁻⁹.
Typical process acceptance indicators
Appendix E stipulates that the main drive of the rolling mill must meet the following requirements:
- Speed steady-state accuracy ±0.05%
- Torque response time <5ms
- 300% instantaneous overload capacity
Implementation suggestions
- Give priority to vector control models (Clause 4.3)
- Current derating is required for altitudes above 1000m (Clause 6.1.1.1)
- Regularly detect harmonic content (Formula THD=√∑(Qh/Q1)²)
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