KTPZH

Packaged Transformer Substations (PTS) are a key element of energy infrastructure. KTPZH series substations with capacities of 25 to 2500 kVA are designed specifically for railway electrical networks, ensuring reliable power supply for the stable operation of railway transport and related infrastructure. KTPZH-25…1000/27.5/0.4 U1 receive three-phase 50 Hz current at 27.5 kV, convert it to 0.4 kV, and supply consumers at railway stations, sidings, and premises in temperate climates.

Structural Features

KTPZH substations are designed considering the specific operational requirements near railway tracks and contact networks. Their construction ensures high reliability, operational safety, and ease of maintenance, which is critically important for railway infrastructure facilities.

• The OMZH transformer and low-voltage cabinet are installed on a special frame.
• For substations with capacities of 2.5 and 4 kVA, the frame is mounted on a power line pole.
• For 10 kVA substations, T-shaped supports are used.
• Connection to the contact network is carried out using a disconnector, which can be installed either on a contact network pole or on a separate freestanding pole.
• A high-voltage fuse and surge arrester are installed on the same frame as the transformer to protect the equipment.
• Outgoing lines can be equipped with automatic circuit breakers or “knife switch-fuse” blocks, as per customer request.

Technical Specifications of KTPZH Substations

Parameters of KTPZH type substations

Dimensions

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Advantages of Using KTPZH Substations

The use of KTPZH transformer substations in railway electrical networks provides several significant advantages that contribute to increased efficiency, safety, and reliability of power supply. These benefits make KTPZH an optimal choice for the modernization and development of railway infrastructure.

• High reliability: KTPZH substations are designed to operate in challenging conditions near railways and across a wide temperature range.
• Comprehensive energy metering: Active and reactive electrical energy metering is provided, allowing for monitoring and optimizing consumption.
• Operational safety: The presence of electrical and mechanical interlocking ensures the safety of maintenance personnel when working with the substation.
• Flexible configuration: The possibility of manufacturing KTPZH according to non-standard schemes, including various voltage options (e.g., 35/10(6) kV or 27.5/10(6) kV), allows for adapting them to specific customer needs.
• Versatile output lines: Outgoing lines can be equipped with either stationary automatic circuit breakers or “knife switch-fuse” blocks, providing flexibility in choosing protective devices.
• Resistance to climatic conditions: Substations are designed to operate in temperate climates with temperatures ranging from -40°C to +40°C.

Areas of Application

KTPZH packaged transformer substations are specifically designed to meet the electrification needs of railway infrastructure facilities. Their adaptability to specific operating conditions makes them indispensable for ensuring stable and uninterrupted power supply in key sections of railways.

• Railway stations: Providing electricity for lighting, signaling, heating, communication systems, and other needs of the station complex.
• Sidings and stopping points: Supplying electricity for the functioning of equipment and lighting in remote sections of the track.
• Crossings: Powering traffic lights, barriers, and other safety systems at railway crossings.
• Linear-track premises: Powering administrative and industrial premises located along railway tracks.
• Electrical networks powered by the DPR (two wires-rail) scheme: KTPZH are designed to work precisely with this power supply scheme, which is typical for electrified railways.

Compliance with Standards

The production and operation of KTPZH packaged transformer substations are strictly regulated by current national and international standards. This ensures the high quality of the products, their safety, and compatibility with existing electrical networks. Compliance with standards also guarantees the longevity of the equipment and minimizes risks during operation.

• KTPZH substations are manufactured according to technical specifications TU U 3.49-00213440-002-99.
• The products comply with the requirements for equipment intended for use in railway electrical networks.
• Compliance with reliability and safety indicators is ensured, confirmed by the presence of electrical and mechanical interlocking.
• Climatic execution U1 indicates the substations’ compliance with requirements for operation in temperate climates.

To order a substation, please fill out the inquiry form and send it to zakaz@uea.km.ua, or contact the official representative of LLC “Ukreelektroaparat”.