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RCW-S21.9M 21.9kV MV outdoor vacuum recloser
Rockwill Electric GROUP Co., Ltd
16yrs 700++ staff 108000m²+m² US$150,000,000+
Rockwill Electric GROUP Co., Ltd
16yrs 700++ staff 108000m²+m² US$150,000,000+
Key attributes
Brand ROCKWILL
Model NO. RCW S21.9M MV outdoor vacuum recloser
Rated voltage 21.9kV
Rated normal current 630A
Rated short circuit breaking current 16kV
Power frequency withstand voltage 70kV/min
Rated lightning impulse voltage 170kV
manual closing Yes
Series RCW
Product descriptions from the supplier
Description

Description:

The RCW   series automatic circuit reclosers can use on overhead distribution lines as well as distribution substation applications for all voltage classes 11kV up to 38kV at 50/60Hz power system.  and it’s rated current can reach 1250A.The RCW   series automatic circuit reclosers integrates the functions of control, protection, measurement, communication, fault detection, on-line monitoring of closing or opening.The RCW   series vacuum recloser is mainly combined with integration terminal, current transformer, permanent magnetic actuator and it’srecloser controller.

Features:

  • Optional grades available in rated current range.

  • With optional relay protection and logic for user selection.

  • With optional communication protocols and I/O ports for users to choose.

  • PC software for controller testing, setup, programming, updates.

Parameters:

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External dimensions

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Environmental requirement

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Product show

What are the insulation faults of outdoor vacuum reclosers and their solutions?正方型 单相.png

Insulation Faults:

Insulator Flashover:

  • Clean Insulators: For insulators that experience flashover due to surface contamination, regular cleaning is necessary. Specialized insulator cleaning tools, such as insulator cleaning brushes or high-pressure water guns, can be used. After cleaning, anti-flashover coatings can be sprayed on the insulator surfaces to enhance their contamination resistance.

  • Replace Insulators: If insulators show a decrease in insulation strength due to lightning strikes or other reasons, and exhibit obvious cracks or damage, they should be replaced promptly. When replacing insulators, choose ones that meet the voltage and mechanical strength requirements of the equipment.

Insulation Aging:

  • Test Insulation Performance: Use insulation resistance testers, dielectric loss testers, and other equipment to regularly test the insulation performance of insulating materials. When a decline in insulation performance is detected, analyze the causes of aging.

  • Replace Insulation Components: If insulation aging is severe, such as when partial discharge phenomena are observed, aged insulation components (e.g., insulating bushings, insulating supports) should be replaced promptly. Additionally, improve the operating environment of the equipment, such as by enhancing ventilation and reducing humidity, to slow down the aging process of the insulation.

Insulation Faults Resolution:

Insulator Flashover:

  • Clean Insulators: For insulators that experience flashover due to surface contamination, regular cleaning is necessary. Specialized insulator cleaning tools, such as insulator cleaning brushes or high-pressure water guns, can be used. After cleaning, anti-flashover coatings can be sprayed on the insulator surfaces to enhance their contamination resistance.

  • Replace Insulators: If insulators show a decrease in insulation strength due to lightning strikes or other reasons, and exhibit obvious cracks or damage, they should be replaced promptly. When replacing insulators, choose ones that meet the voltage and mechanical strength requirements of the equipment.

Insulation Aging:

  • Test Insulation Performance: Use insulation resistance testers, dielectric loss testers, and other equipment to regularly test the insulation performance of insulating materials. When a decline in insulation performance is detected, analyze the causes of aging.

  • Replace Insulation Components: If insulation aging is severe, such as when partial discharge phenomena are observed, aged insulation components (e.g., insulating bushings, insulating supports) should be replaced promptly. Additionally, improve the operating environment of the equipment, such as by enhancing ventilation and reducing humidity, to slow down the aging process of the insulation.



Know your supplier
ROCKWILL
Rockwill Electric GROUP Co., Ltd 16yrs 700++ staff 108000m²+m² US$150,000,000+
Rockwill Electric GROUP Co., Ltd
16yrs 700++ staff 108000m²+m² US$150,000,000+
Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 108000m²m² Total staff: 700+ Highest Annual Export(usD): 150,000,000
Workplace: 108000m²m²
Total staff: 700+
Highest Annual Export(usD): 150,000,000
Services
Business Type: Design/Manufacture/Sales
Main Categories: High Voltage Electrical Apparatus
Whole life care manager
Full lifecycle management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.
The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.
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