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ZW32-12 Outdoor Vacuum Circuit Breaker
ZW32-12 Outdoor Vacuum Circuit Breaker

ZW32-10kv(12kv) Outdoor Vacuum Circuit Breaker

ZW32-12 Outdoor Vacuum Circuit Breaker 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

Standardized Design: Complies with customization requirements, ensuring consistent installation dimensions and unified interfaces for interoperability.

2

Structural Features: Adopts a three-phase independent column structure with air insulation and vacuum arc extinction, capable of interrupting short-circuit currents of 20kA for up to 30 times.

3

Integrated Design: The electronic voltage and current sensors are sealed within the pole, ensuring structural stability and minimal partial discharge, while providing strong signal support for the feeder terminal.

4

Independent Capability: The sensor module has the necessary qualifications and production capability, offering superior performance, a wide measurement range, high precision, and strong reliability.

5

Status Monitoring: Supports the collection and monitoring of analog and status quantities, with remote signaling and local indications for operating status, communication status, and line fault conditions.

6

Edge Computing: Features high-performance edge computing for real-time analysis of operational conditions.

7

Protection Functionality: Enables precise assessment and rapid isolation of short-circuit faults, ground faults, and open line faults.

8

Smart Terminal: Equipped with features for line loss collection, feeder automation, communication, positioning, time-synchronized recording, and power management, supporting remote maintenance.

9

High Adaptability: Suitable for high-altitude, high-pollution, high-condensation, high-salt fog, and extremely cold environments.

Parameter
Tech. parameters Unit Value
Rated voltage KV 12
Rated current A 630
Rated frequency  Hz 50
Rated lightning impulse withstand voltage level(1.2/50μs) KV Interphase, ground 75/fracture 85
Rated power frequency withstand voltage(1min) KV Interphase, to the ground 42/fracture 48
Rated short-time breaking current KA 20
Rated times of short-circuit breaking times 30
Rated short-circuit withstand  current KA 20(4s)
Rated peak withstand current KA 50
Secondary circuit power frequency withstand voltage(1min) Kv 2
Partial discharge(1.1Ur) pc ≤20
Mounting interface mm 920X160
Phase spacing mm 340
Weight kg ≤130
Ingress protection of circuit breaker / IP67
Mechanical life times 20000
Rated operating sequence / O-0.3s-CO-180s-CO
Instrument transformer installation method / Sealed pole (electronic)
Feeder automation terminal (FTU) structure form / Standardized hood type, box type



Current and voltage sensor configuration

Parameter  Parameter Name Value
Transformer combination mode Rated conversion ratio Phase current Sensor: 600A/1V
Zero sequence current sensor: 20A/0.2V
Phase Voltage Sensor: (10kV/)/(3.25V/)
Zero Sequence Voltage Sensor: (10kV/)/(6.5V/3)
Power supply voltage transformer: 10kV/0.22kV
Accuracy rating Phase current sensor, measurement 0.5S level, protection 5P10
Zero sequence current sensor: When the input current on 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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ZW32-12 Outdoor Vacuum Circuit Breaker
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