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ZW32-12 Outdoor Pole-Mounted Vacuum Circuit Breaker
ZW32-12 Outdoor Pole-Mounted Vacuum Circuit Breaker
ZW32-12 Outdoor Pole-Mounted Vacuum Circuit Breaker
ZW32-12 Outdoor Pole-Mounted Vacuum Circuit Breaker

ZW32-10kV(12kV) Outdoor Pole-Mounted Vacuum Circuit Breaker

ZW32 combines a vacuum circuit breaker, feeder terminal, power voltage transformer, and aviation connector cable. It offers efficient fault detection and protection capabilities, making it suitable for 10kV overhead distribution lines, including feeders, junction points, sectionalizing points, and user boundary points.

Feature
1

The circuit breaker utilizes an integrated solid-sealed pole design, which includes a vacuum arc-extinguishing chamber, digital transformer, and ADMU module. The feeder terminal is constructed with a hood structure.

2

The configured transformer features a wide measurement range, high accuracy, and strong reliability, allowing the integrated device to accurately identify various line faults.

Parameter

1. Standardized Design: 
It has consistent installation dimensions and unified interfaces, ensuring replacement convenience.
2. Structural Features:
Utilizes a three-phase independent pole structure, with air insulation and vacuum interruption, capable of breaking short circuit currents of 20kA up to 30 times.
3. Integrated Design:
Electronic voltage and current sensors are solid-sealed within the pole, ensuring stable structure and low partial discharge, providing robust signal support for the feeder terminal.
4. Autonomous Capability:
The sensor module has certification and independent production capabilities, with superior performance, a wide measurement range, high accuracy, and strong reliability.
5. State Monitoring:
Supports analog and status data collection and monitoring, remote signal anti-jitter, and local indication of operational status, communication status, line fault status, etc.
6. Edge Computing:
High-performance edge computing enables on-site analysis of operational conditions.
7. Protection Functions:
Allows precise judgment and rapid isolation of short circuit, ground fault, and broken line faults.
8. Intelligent Terminal:
Features line loss collection, feeder automation, communication, positioning, time synchronization recording, and power management functions, supporting remote maintenance.
9. High Adaptability:
Suitable for high altitude, high pollution, high dew point, high salt spray, and severe cold regions.
10. Pre-set Expansion Interfaces:
Compatible with various intelligent sensors and monitoring of mechanical characteristics, temperature, partial discharge, etc., leaving interfaces for future device intelligence.
11. Energy-Saving and Environmentally Friendly:
Adopts lightweight and integrated design concepts, significantly reducing the use of epoxy resin, silicone, and ferromagnetic materials, meeting the product needs of China's distribution network under the “dual carbon” goals.

Tech. parameters Unit Vallue
Rated voltage KV 12
 Rated current A 630
Rated frequency Hz 50
Rated lightning impulse (1.2/50μs) withstand voltage KV Interphase, ground 75/fracture 85
Rated short-time power frequency withstand voltage (1min) KV Interphase, to the ground 42/fracture 48
Rated short-circuit breaking current KA 20
Rated breaking times of short circuit breaks Times 30
Rated short-circuit withstand current KA 20(4s)
Rated peak withstand current KA 50
Power frequency withstand voltage of secondary circuit (1min) Kv 2
Partial Discharge (1.1Ur) pc ≤20
Mounting interfaces mm 920X160
Phase spacing mm 340
Weight kg ≤130
Protection level is required for circuit breaking / IP67
Mechanical life Times 20000
Rated sequence of operations / O-0.3s-CO-180s-CO
Instrument transformer installation method / Sealed pole (digital)
Feeder automation terminal (FTU) structure / Standardized hood type, box type

Current and voltage sensor configuration

Tech. parameters Tech. parameters Value
Digital transformer combination mode Rated conversion ratio Phase current sensor: measurement 600A/11585 protection 600A/463
Zero sequence current sensor: measurement 20A/(11585/5) protection 20A/463
Phase voltage sensor: (10kV/V3)/11585
Zero Sequence Voltage Sensor: (10kV/V3)/(11585/3)
Power supply voltage transformer: 10kV/0.22 kV
Accuracy class Phase current sensor: measurement 0.5S level, protection 5P10
Zero sequence current sensor: when the input current of the primary side is 1A to the rated current, it meets the level of 1S (angular difference, ratio difference), and protects 10P30
Phase voltage sensor: class 0.5
Zero sequence voltage sensor: 3P
Power supply voltage transformer: 3 levels





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