ZW32-12 Capacitor-Powered Insulation Column Circuit Breaker | Advanced Energy Management

ZW32-12 Outdoor Pole-Mounted Vacuum Circuit Breaker

ZW32-10kV(12kV) Capacitor-Powered Insulation Column Circuit Breaker

This fully integrated circuit breaker combines the circuit breaker body, feeder terminal FTU, power PT, and connecting cables, achieving deep integration of primary and secondary equipment in one step. It addresses issues such as remote signal jitter and terminal line loss collection in distribution networks; enables line loss management by segments, local feeder automation, single-phase ground fault detection, factory pre-assembly, and plug-and-play functionalities.

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Parameter

Safety and Reliability:
-Lightweight (85kg) to avoid unexpected risks after installation.
-Reduced primary auxiliary equipment to lower the risk of equipment failure.
-Eliminates safety hazards due to misremote control caused by automation.

Operational Functions:
-Achieves selective tripping of short circuit faults in overhead distribution lines (multi-level precise coordination).
-Enables selective automatic isolation of single-phase ground faults in overhead distribution lines (level coordination).
-Solves line loss assessment issues in overhead distribution lines.

Product Innovation:
-Uses high-precision, wide-range electronic sensors to replace traditional electromagnetic transformers, achieving a three-in-one measurement/protection/monitoring compatibility.
-Integrates the sensor with the main pole through a solid sealing process for deep integration.
-The power supply PT solves the power supply issue.
-Modular and standardized design supports hot-swappable installation for convenience.

High Intelligence:
-The device does not rely on the master station. In case of line faults, it can accurately and quickly isolate the smallest fault area of a short -circuit or single-phase ground fault.
-The terminal can independently assess short circuit or single-phase ground faults using proprietary algorithms and issue isolation commands.

Tech. parameters	Unit	Parameter value
Rated voltage	KV	10
Rated cable charging breaking current	A	25
Rated current	A	630/1250
Rated short-circuit Breaking current	KA	20/25
Rated peak withstand current (peak)	KA	50/63
Rated short-time withstand current	KA	20/25
Rated short-circuit making current(peak value)	KA	50/63
Mechanical life	times	20000
Rated breaking times of short-circuit breaking current	times	30
Power frequency withstand voltage (1min) :(wet) (dry) interphase, grounding/fracture	KV	42/48
Lightning impulse withstand voltage (peak) interphase, grounding/fracture	KV	75/85

Voltage sensors
Tech. parameters	Value
Rated conversion ratio	Phase: 600A/1V, Zero Sequence: 20A/0.2V
Accuracy class(including 15m cable)	Phase: protection 5P10 level, metering 0.5S level 3-in-1 compatible/ Zero sequence: <1% (1%-120%ln, protection 10P10 level
Operating mode	Low power consumption electromagnetic type
Temperature range	-40℃-70℃
Load impedance	Not less than 20kΩ

Current sensors

Tech. parameters	Value
Rated conversion ratio	Phase voltage: (10kV/ √3)/(3.25V/ √3), zero sequence (10kV/ √3)/(6.5V/ √3)
Accuracy class(including 15m cable)	Phase voltage: 0.5/3P level, zero sequence voltage: 3P
Operating mode	Capacitor voltage divider
Temperature range	-40℃-70℃
Load impedance	10pC，14.4kV
Insulation resistance when combined with a switch (switch phase to ground)	≥25MΩ
Load impedance	The input impedance of the terminal > 10MΩ, and the input impedance of the distribution line loss acquisition module > 10MΩ