IEL11-37309-1-V

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Circuit breakers are designed to protect electrical systems and components from damage due to overcurrent, short circuits and other electrical faults. Among the various types of circuit breakers is the IEL11-37309-1-V, which is designed to provide reliable and effective operation in high-voltage applications. This article will provide an overview of the IEL11-37309-1-V application field and working principle.

The IEL11-37309-1-V is a line-interrupter circuit breaker designed for use in medium voltage applications, such as distribution transformers and high-voltage circuit breaker switchgear operating up to 38kV. The IEL11-37309-1-V is suited for both outdoor and indoor installations and provides overcurrent, overvoltage, and short-circuit protection to electrical systems and components.

The IEL11-37309-1-V is a vacuum circuit breaker, which means that it operates using a vacuum inside the breaker to provide isolation and protection. The circuit breaker is equipped with a hollow tube, which is filled with a mix of neon and argon gases in proportion to reduce the risk of arc decomposition during switching operations. The vacuum acts as an insulating medium that enables the breaker to effectively and reliably switch and break even high current faults.

The IEL11-37309-1-V is operated using a spring-assisted lever mechanism to provide rapid and reliable operation. The spring mechanism ensures quick opening during short circuit conditions, while the closing operation is controlled by a definite-time delay mechanism, allowing the tripping current to be set and accurately controlled. The breaker is also equipped with an adjustable overcurrent trip setpoint with a range of 10-150% of the rated load current.

The IEL11-37309-1-V is also equipped with a series of protective features to ensure optimal and reliable operation in a variety of applications. This includes a built-in test switch with an LED indicator to easily access the operating status of the breaker in addition to a manual reset switch for resetting the breaker after an overcurrent trip. The breaker also features an automatic recloser, which is designed to automatically close the breaker after a fault has been cleared.

In addition to the operating features, the IEL11-37309-1-V is also equipped with a range of safety features such as a surge arrester, current transformer, pressure relief valve, and lockout/isolation switch. These safety features ensure that the circuit breaker operates reliably even in a power surge or overcurrent situation. The lockout/isolation switch ensures that the circuit breaker is properly isolated from the system before maintenance or repair work is conducted.

The IEL11-37309-1-V is a reliable and durable circuit breaker designed to provide effective and reliable protection in medium voltage applications up to 38kV. The breaker is equipped with a range of advanced features that enable it to provide protection and control in a variety of applications. From its easy accessibility to diagnostic capabilities, this breaker is an ideal solution for a range of applications.

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