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

ZW32-12 Pole-Mounted Outdoor Vacuum Circuit Breaker

The primary and secondary fusion of a complete set of column circuit breaker (ordinary branch gui) to meet the State Grid Corporation of the equipment department of the "No. 151" document of the standardized design scheme, it is mainly composed of vacuum circuit breaker (ordinary pillar type), feeder terminal, power supply voltage transformer and aviation plug connection cable. The circuit breaker adopts vacuum arc extinguishing, and there are three schemes for the combination mode of transformer, electromagnetic type: external protection, zero sequence integrated current transformer and zero sequence voltage transformer, and electronic type: external electronic current and voltage transformer. The feeder terminal adopts a hood structure, and according to the transformer combination mode, it corresponds to the electromagnetic feeder terminal, the electronic feeder terminal and the digital feeder terminal. The overall design of the product meets the standardized design requirements of the State Grid, and the configured transformer has the characteristics of wide measurement range, high measurement accuracy and high reliability, which is convenient for the complete set of primary and secondary fusion devices to accurately determine various faults of the line. It is suitable for feeders, contact points, segmentation points, branches or user demarcation points of 10KV overhead distribution lines, and plays the role of breaking, controlling, protecting and line loss collection in the line.

Feature
1

Standardized complete set of design: in line with the requirements of the State Grid for the standardization and customization of the primary and secondary integration, the installation size is consistent, the interface is unified, and it can be interchanged.

2

Structural features: three-phase independent pillar structure, air insulation, vacuum arc extinguishing, breaking short circuit current of 20kA up to 30 times.

3

Modular design: Adopting the modular design concept, the combination mode of electromagnetic/electronic sensors is flexible and interchangeable.

4

Independent ability: The sensor module has qualification and independent production capacity, superior performance, wide measurement range, high measurement accuracy and strong reliability.

5

Condition monitoring: Support analog and status data acquisition and monitoring, remote signal anti-shake, local indication of operation status, communication status, line fault status, etc.

6

Edge computing: High-performance edge computing enables on-site analysis of running conditions.

7

Protection function: It can realize the accurate research and judgment of short-circuit faults, grounding faults, and disconnection faults, and quickly isolate intelligent terminals: it has the functions of line loss collection, feeder automation, communication, positioning, timing recording, power management, etc., and supports high adaptability such as remote maintenance: suitable for high altitude, high pollution seconds, high condensation, high salt fog and severe cold areas.

Parameter

Name unit parameter
Rated voltage KV 12
Current rating A 630
Name Hz 50
Rated voltage KV Interphase, ground 75/fracture 85
Current rating KV Interphase, to the ground 42/fracture 48
Rated frequency KA 20
Rated lightning impulse (1,2/50μs) withstand voltage Times 30
Rated short-time power frequency withstand voltage (1min) KA 20(4s)
Rated short-circuit interrupting current KA 50
Rated number of short circuit breaks KV 2
Rated short-circuit withstand current pC ≤20
Rated peak withstand current mm 920×160
Power frequency withstand voltage of secondary circuit (1min) mm 340
Partial Discharge (1.1Ur) kg ≤130
Mounting interfaces / IP67
Phase spacing times 20000
weight / O-0.3s-CO-180s-CO
Circuit breaker protection rating / Pole External (Electromagnetic/Electronic)
Mechanical life / Standardized hood type, box type
parameter The name of the parameter numeric value
Electromagnetic transformer combination mode Rated conversion ratio Mesh current transformer: 600A/5A or 600A/1A
Zero sequence current transformer diagram: 100A/1A (current amplification factor>6)
Zero Sequence Voltage Sensor: (10kV/)/(6.5V/3)
Power supply voltage transformer: 10A0.1/0.22kV
Accuracy rating Phase current transformer: protection 5P10 level, measurement 0.5S level
Zero sequence current transformer: When the input current of the primary side is 1A to the rated current, it can meet the 1S suction (angular difference, ratio difference), and the protection accuracy level is 5P10.
Zero sequence voltage sensor: 3P
Power supply voltage transformer: 0.5/3 class
Electronic 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
Install
ZW32-12 Pole-Mounted Outdoor Vacuum Circuit Breaker
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