The device is a switching device that performs the function of automatic sectioning of overhead or combined power lines. The word "recloser" itself appeared relatively recently. In the zero years, many power engineers were unfamiliar with this concept. Previously, the device was called a sectioning unit, which was used to divide overhead lines into sections. This division allowed and still allows to temporarily take emergency sections out of service to repair damage without disconnecting power supply to the entire facility.
However, the recloser still has some differences. The main element of the device is a vacuum circuit breaker, which allows automatically disconnecting and reconnecting AC circuits according to a predetermined algorithm. It protects power lines from overloads and short circuits. The device also allows for monitoring, recording the characteristics, parameters of power grids.
The fixture not only protects power grids from overloads, but also has a kind of mind. Depending on the settings of relay or microprocessor protection, the automatic sectionalizer makes several attempts to restore power supply in case of failure and sends a message to the operator.
The "intelligent capabilities" of the device allow you to reduce the number of trips of operative teams, thereby reducing the cost of power grid maintenance. Recloser refers to the class of unattended installations, autonomously operating without human presence for many years. Therefore, it is installed in facilities located in remote and inaccessible areas.
Let us summarize the intermediate results. The device is used to:
Main structural elements of the device are:
Automatic section control unit is designed to protect and regulate overhead power lines. It is installed on poles, so it has small size and relatively low weight.
When choosing a place for installation, the configuration of the power grid and the frequency of accidents at a particular site are taken into account. Devices are mostly mounted on routes that have branches. Why is it necessary to divide the overhead line into sections, redundancy and transition of power from one source to another. Devices are placed on the transmission line at distances of 8-10 km. Such spacing increases the reliability of power supply to consumers in separate sections.
Installation work is performed by qualified personnel using a lifting mechanism and/or "claws". The metal box is fixed to the poles with frames, which the manufacturers complete the products. Typically, manufacturers produce mounting posts for a specific type of support. To do this, the buyer needs to specify the appropriate information when placing the order.
However, the recloser still has some differences. The main element of the device is a vacuum circuit breaker, which allows automatically disconnecting and reconnecting AC circuits according to a predetermined algorithm. It protects power lines from overloads and short circuits. The device also allows for monitoring, recording the characteristics, parameters of power grids.
Why do you need a recloser?
The fixture not only protects power grids from overloads, but also has a kind of mind. Depending on the settings of relay or microprocessor protection, the automatic sectionalizer makes several attempts to restore power supply in case of failure and sends a message to the operator.
The "intelligent capabilities" of the device allow you to reduce the number of trips of operative teams, thereby reducing the cost of power grid maintenance. Recloser refers to the class of unattended installations, autonomously operating without human presence for many years. Therefore, it is installed in facilities located in remote and inaccessible areas.
Let us summarize the intermediate results. The device is used to:
- increase the reliability of the network;
- reduce maintenance costs;
- minimize losses from possible power shortage to consumers;
- accounting of the electrical energy.
Technical characteristics
Main structural elements of the device are:
- Vacuum circuit breaker, actuating in tenths of a second;
- Current and voltage transducers detecting line parameters (transformers);
- Relay or microprocessor protection devices, which control the operation of circuit breakers;
- mounting frames;
- connecting cable.
Mounting and installation
Automatic section control unit is designed to protect and regulate overhead power lines. It is installed on poles, so it has small size and relatively low weight.
When choosing a place for installation, the configuration of the power grid and the frequency of accidents at a particular site are taken into account. Devices are mostly mounted on routes that have branches. Why is it necessary to divide the overhead line into sections, redundancy and transition of power from one source to another. Devices are placed on the transmission line at distances of 8-10 km. Such spacing increases the reliability of power supply to consumers in separate sections.
Installation work is performed by qualified personnel using a lifting mechanism and/or "claws". The metal box is fixed to the poles with frames, which the manufacturers complete the products. Typically, manufacturers produce mounting posts for a specific type of support. To do this, the buyer needs to specify the appropriate information when placing the order.
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