title: Ð ÐµÐ»ÐµÐ¹Ð½Ð°Ñ Ð·Ð°ÑÐ¸ÑÐ° Ð°Ð²ÑÐ¾ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ° 220/110 ÐºÐ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Relay protection for autotransformer 220/110 kV
Creators: name: ÐÐ¾ Ð§Ð¶Ð°Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÐÐ²ÑÐ¾ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ
ÐÐ¸ÑÐ¾Ð½ (Python)
Ð¢ÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ ÑÐ¾ÐºÐ°
ÑÐµÑÐ¼Ð¸Ð½Ð°Ð» RET670
Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½Ð°Ñ Ð·Ð°ÑÐ¸ÑÐ°
RET670 terminal
differential protection

description: Ð Ð°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸ÑÐ¼ ÑÐµÐ»ÐµÐ¹Ð½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ Ð°Ð²ÑÐ¾ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ° 220/110/10 ÐºÐ². ÐÐ·ÑÑÐ°ÑÑÑÑ Ð·Ð°ÑÐ¸ÑÐ½ÑÐµ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð°, Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼ÑÐµ Ð´Ð»Ñ Ð°Ð²ÑÐ¾ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ°, Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð½Ð°ÑÑÑÐµÐ½Ð¸Ñ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ° ÑÐ¾ÐºÐ° Ð½Ð° Ð·Ð°ÑÐ¸ÑÑ Ð¸ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¹ ÑÐµÐ¿Ð¸ Ð°Ð²ÑÐ¾ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ°. ÐÐ°Ð´Ð°ÑÐ¸, ÑÐµÑÐ°ÐµÐ¼ÑÐµ Ð² ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ: 1. ÐÑÐ±Ð¾Ñ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð² ÑÐ½ÐµÑÐ³Ð¾ÑÐ¸ÑÑÐµÐ¼Ðµ Ð¸ ÑÐ°ÑÑÐµÑ ÑÐ¾ÐºÐ° ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ. 2. ÐÑÐ±Ð¾Ñ Ð¸ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ° ÑÐµÐ»ÐµÐ¹Ð½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ Ð¸ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÐºÐ¸(Ð ÐÐ). 3. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð¹ÑÐµ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÑÑ Ð¼Ð¾Ð´ÐµÐ»Ñ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ° ÑÐ¾ÐºÐ°, Ð¸Ð·ÑÑÐ¸ÑÐµ ÐµÐµ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð½Ð° ÑÐµÐ»ÐµÐ¹Ð½ÑÑ Ð·Ð°ÑÐ¸ÑÑ Ð¸ ÑÐ»ÑÑÑÐ¸ÑÐµ Ð²ÑÐ±Ð¾Ñ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ° ÑÐ¾ÐºÐ°. 4. Ð¡Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÑÐ¹ÑÐµ Ð°Ð²ÑÐ¾ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾Ñ Ð¸ Ð¿Ð¾ÑÑÑÐ¾Ð¹ÑÐµ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¹ ÑÐµÐ¿Ð¸ Ð°Ð²ÑÐ¾ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ°. Ð Ð¿ÑÐ¾ÑÐµÑÑÐµ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÐ»Ð¸ ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ñ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ¸Ðµ Ð·Ð°ÑÐ¸ÑÑ Ð¾Ñ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½ÑÑ Ð½ÐµÐ¸ÑÐ¿ÑÐ°Ð²Ð½Ð¾ÑÑÐµÐ¹ Ð°Ð²ÑÐ¾ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ°, ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ñ ÑÐ¾ÐºÐ¸ ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ Ð¿ÑÐ¸ Ð¼Ð°ÐºÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð¼ Ð¸ Ð¼Ð¸Ð½Ð¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð¼ ÑÐµÐ¶Ð¸Ð¼Ð°Ñ ÑÐ°Ð±Ð¾ÑÑ, Ð¿ÐµÑÐ²Ð¾Ð½Ð°ÑÐ°Ð»ÑÐ½Ð¾ Ð²ÑÐ±ÑÐ°Ð½ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾Ñ ÑÐ¾ÐºÐ°. Ð¢ÐµÑÐ¼Ð¸Ð½Ð°Ð» RET670 ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ ABB Ð±ÑÐ» Ð²ÑÐ±ÑÐ°Ð½ Ð´Ð»Ñ Ð¾ÑÐ½Ð¾Ð²Ð½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ Ð¸ ÑÐµÐ·ÐµÑÐ²Ð½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ Ð°Ð²ÑÐ¾ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ°, Ð¸ Ð±ÑÐ»Ð¸ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ñ ÑÐ°ÑÑÐµÑÑ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ Ð´Ð»Ñ Ð²ÑÐµÑ Ð·Ð°ÑÐ¸Ñ. ÐÑÐ¿Ð¾Ð»ÑÐ·ÑÐ¹ÑÐµ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ðµ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ðµ Python Ð´Ð»Ñ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ° ÑÐ¾ÐºÐ° Ð¢ÐÐ¤-10 Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ ÐµÐ³Ð¾ ÐºÑÐ¸Ð²Ð¾Ð¹ ÑÐ¾ÐºÐ° Ð½Ð°Ð¼Ð°Ð³Ð½Ð¸ÑÐ¸Ð²Ð°Ð½Ð¸Ñ, ÐºÑÐ¸Ð²Ð¾Ð¹ Ð¿ÐµÑÐ²Ð¸ÑÐ½Ð¾Ð³Ð¾ Ð¸ Ð²ÑÐ¾ÑÐ¸ÑÐ½Ð¾Ð³Ð¾ ÑÐ¾ÐºÐ° Ð¸ ÐºÑÐ¸Ð²Ð¾Ð¹ Ð¿Ð¾Ð³ÑÐµÑÐ½Ð¾ÑÑÐ¸. ÐÑÐ±Ð¸ÑÐ°Ð¹ÑÐµ Ð¢ÐÐ¤-10 Ð¸ Ð¢Ð¤Ð-35 Ð² ÐºÐ°ÑÐµÑÑÐ²Ðµ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ¾Ð² ÑÐ¾ÐºÐ° Ð½Ð¸Ð·ÐºÐ¾Ð³Ð¾ Ð¸ Ð²ÑÑÐ¾ÐºÐ¾Ð³Ð¾ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ Ð´Ð»Ñ Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ. ÐÐ·Ð¼ÐµÐ½ÑÑ Ð²ÐµÐ»Ð¸ÑÐ¸Ð½Ñ Ð¿Ð¾Ð³ÑÐµÑÐ½Ð¾ÑÑÐ¸ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ° ÑÐ¾ÐºÐ°, Ð¸Ð·ÑÑÐ°ÐµÑÑÑ Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ ÐºÑÐ¸Ð²Ð¾Ð¹ ÑÐ¾ÑÐ¼Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ. Ð ÑÐµÑÐµÐ· Ð·Ð°ÐºÐ»ÑÑÐµÐ½Ð¸Ðµ ÑÐ»ÑÑÑÐ¸ÑÑ Ð²ÑÐ±Ð¾Ñ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ° ÑÐ¾ÐºÐ°.
description: The work is devoted to the research of relay protection of the autotransformer 220/110/10 sq. The protective devices necessary for the autotransformer, the influence of the saturation of the current transformer on the protection and the model of the magnetic circuit of the autotransformer are studied. Tasks solved in the course of the study: 1. The choice of equipment in the power system and the calculation of the short-circuit current. 2. Selection and installation of relay protection and automation (RPA). 3. Develop a mathematical model of the current transformer, study its effect on relay protection and improve the selection of the current transformer. 4. Model an autotransformer and build a model of the autotransformer magnetic circuit. During the design process, appropriate protections were installed against possible faults of the autotransformer, short-circuit currents were calculated at maximum and minimum operating modes, the current transformer was initially selected. ABB's RET670 terminal was selected for primary protection and autotransformer backup protection, and installation calculations were performed for all protections. Use Python software to mathematically simulate the TPF-10 current transformer and obtain its magnetizing current curve, primary and secondary current curve, and error curve. Choose TPF-10 and TFN-35 as low and high voltage current transformers for differential protection. By changing the value of the error of the current transformer, the change in the braking curve of the differential protection is studied. And through the conclusion to improve the choice of the current transformer.