GB/T 32898-2016 in English
VALIDConfiguration guide of relay protection for pump-storage generator and transformer unit
- Issued on:2016-08-29
- Implemented on:2017-03-01
- File Format:PDF
- Delivery:Via email within 5 business days
$321.00
| Standard No: | GB/T 32898-2016 |
| Document status: | VALID |
| Title in English: | Configuration guide of relay protection for pump-storage generator and transformer unit |
| Title in Chinese: | 抽水蓄能发电电动机变压器组继电保护配置导则 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2016-08-29 |
| Implemented on: | 2017-03-01 |
| Professional Classification: | GB-National Standard |
| Related Keywords: | relay protection configuration
relay protection configuration guidelines protection configuration compound voltage overcurrent protection compound voltage overcurrent protection relay protection |
| Related Topics: | motor protector tmp
motor protector tmp Voltage and conductance relay protection conductance voltage conductance voltage GBT32898 GB/T 32898-2016 Low Voltage Motor Protector Conductivity generator Conductivity 1314 Configuration Relay protection screen diagram |
《GB/T 32898-2016抽水蓄能发电电动机变压器组继电保护配置导则》由524（中国电力企业联合会）归口，主管部门为中国电力企业联合会。
Introduction
Professional interpretation of the relay protection configuration guidelines for pumped storage power generation motor transformer groups
1. Background and significance of standard formulation
The "Guidelines for Relay Protection Configuration of Pumped Storage Power Generation Motor Transformer Groups" (GB/T32898-2016) is to standardize the relay protection design of generator motors and main transformers in pumped storage power stations to ensure the safe operation of the power system. This standard applies to reversible pump turbine generator sets with a single unit capacity of 150MW and above.
2. Comparison of standard frameworks
| Standard dimensions | Generator motor protection requirements | Transformer protection requirements |
|---|---|---|
| Longitudinal differential protection | Complete longitudinal differential and incomplete longitudinal differential protection, which act on shutdown. | Longitudinal differential protection responds to internal faults of the transformer, and acts on disconnecting the circuit breakers on both sides of the main transformer and shutting down. |
| Compound voltage overcurrent protection | Compound voltage overcurrent protection, which acts on shutdown. | Compound voltage overcurrent protection, which responds to overcurrent caused by external short circuit, acts on reducing the scope of fault impact. |
| Frequency anomaly protection | Low-frequency and over-frequency protection, which are locked or activated in pumping and power generation conditions respectively. | Low-frequency protection responds to system frequency anomalies and acts to disconnect the circuit breakers on both sides of the main transformer and shut down the transformer. |
3. Technology evolution and analysis
In recent years, with the development of pumped storage technology, the relay protection configuration has gradually evolved from single overcurrent protection to differential protection, composite voltage overcurrent protection and other directions. GB/T32898-2016, on the basis of inheriting traditional protection, introduces advanced longitudinal differential protection and low-frequency overcurrent protection technology, which significantly improves the safety and reliability of the system.
4. Implementation Suggestions
Case Analysis: Protection Configuration of a Pumped Storage Power Station
In actual projects, appropriate protection configuration schemes should be selected according to the specific conditions of the power station. For example, in the design of main transformer protection, longitudinal differential protection and composite voltage overcurrent protection should be used first, and non-electrical protection (such as gas and temperature protection) should be combined to form a dual configuration.
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