Description

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Product Title

TOSHIBA HCV-7HA – High Voltage Vacuum Circuit Breaker

Product Overview

The TOSHIBA HCV-7HA is a high-voltage vacuum circuit breaker designed for reliable switching and protection in medium-voltage power distribution systems. It is widely used in industrial power networks, substations, and large-scale electrical facilities where safe interruption of fault currents and dependable circuit protection are essential.

This breaker utilizes vacuum interruption technology to rapidly extinguish electrical arcs, ensuring fast and safe disconnection during overloads or short-circuit conditions. The TOSHIBA HCV-7HA is engineered for high operational durability, low maintenance requirements, and consistent performance under demanding electrical environments.

With its compact structure and robust mechanical design, the breaker supports stable operation in power generation plants, industrial facilities, and infrastructure power systems, helping maintain electrical system integrity and protecting critical equipment from electrical faults.

Technical Specifications

• Product Model: HCV-7HA

• Brand: TOSHIBA

• Warranty: One Year

• Input Voltage: Medium-voltage system rated (typically around 7.2 kV class)

• Operating Temperature: -15°C to +55°C

• Storage Temperature: -25°C to +70°C

• Response Time: Fast mechanical switching response (<60 ms typical)

• Protection Class: Designed for indoor switchgear installations

• Accuracy Class: Protection-grade switching device

• Output Frequency: Suitable for 50/60 Hz power systems

• Rated Current Range: Typically up to 630–1250 A depending on configuration

• Communication Interface: Optional auxiliary contacts for control and monitoring

• Supported Protocols: Compatible with protection relays and substation control systems

• Overload Capacity: High short-circuit breaking capacity typical of vacuum breakers

• Dimensions: Vary depending on switchgear panel configuration

Main Features and Benefits

Vacuum Arc Interruption Technology:
The breaker uses vacuum interrupters to extinguish electrical arcs quickly and safely, reducing wear on contacts and extending equipment service life.

High Switching Reliability:
Designed for frequent switching operations and fault protection, ensuring stable power distribution in demanding industrial environments.

Low Maintenance Requirements:
Vacuum interrupters significantly reduce maintenance compared with oil or air circuit breakers, improving long-term operational efficiency.

Robust Mechanical Design:
The TOSHIBA HCV-7HA features durable operating mechanisms and strong insulation performance, enabling reliable operation in medium-voltage switchgear systems.

Application Scenarios

Industrial Power Distribution:
Used in factories, refineries, and heavy industry to protect distribution feeders and electrical equipment from overloads and short circuits.

Power Generation Facilities:
Installed in power plants to manage medium-voltage power circuits connected to generators, transformers, and auxiliary systems.

Electrical Substations:
Deployed in medium-voltage switchgear panels to provide circuit protection and safe switching for distribution networks.