Honle ZX 15.5kV,27kV and 38kV Outdoor Vacuum Auto Recloser
Introduction & Benefits
Long life and low maintenance
High reliability
Optimized measurement
Microprocessor based controller
Honle's ZX-Series three-phase, electronically controlled, vacuum- interrupting distribution automation switch provides reliable, economical
switching, sectionalizing, advanced metering, and automation systems for distribution circuits rated up to 38 kV.
The ZX switch combines solid cycloaliphatic- epoxy vacuum interrupters with a reliable, lightweight operating mechanism that utilizes a magnetic
actuator to provide a lifetime of trouble- free operation. The solid polymer system does not rely on a gaseous, liquid, or foam dielectric.
The ZX switch is highly resistant to ozone, oxygen, moisture, contamination, and ultraviolet light. Switch operations are programmed in an electronic
control with accurate characteristics and a host of advanced features. When system requirements change, program settings are easily altered with no sacrifice of accuracy or consistency.
Honle's reclosers meet all the requirements for outdoor use in accordance with the IEEE C37.60 and IEC 62271-111.
Switch unit description
Recloser principle
Reclosers are used in overhead lines and in substations. Like circuit breakers they are capable of switching normal and fault currents. They are equipped with sensors and controller being the protection and control device. In case of a temporary line fault, they can trip and reclose up to four times, thus avoiding longer network interruptions.
Recloser cycle
In case of a network fault, the recloser opens and recloses several times. In case of temporary faults, the automatic reclosing significantly reduces the outage times. While the trip settings for each operation can be set individually.
Design of switch unit
Each vacuum interrupter is embedded in a solid-insulated pole made of weather-proof cycloaliphatic epoxy-resin. The vacuum interrupter is vertically mounted inside the pole, providing a long service life. Each pole is equipped with an integrated current transformer and a resistive voltage sensor.
Operating mechanism
The recloser is operated by a magnetic actuator,the actuator is a bi-stable system, locked in the end positions by permanent magnets.If not in operation, the magnet coils do not consume any power. The operating mechanism housing is made of stainless steel for outdoor applications. it also accommodates the position indicator and a mechanical operations counter.
Mechanical lockout
The recloser can be tripped manually. If the handle is pulled, the recloser opens and is simultaneously locked out electrically and mechanically. The handle stays extended, thus indicating the interlocked state. To close the recloser again, the handle must first be pushed back to the operation position in order to release the lockout.Then the recloser can be closed electrically via the controller.
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