KYN28-12 Armored Removable MV Switchgear 50kA | TSTY

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KYN28-12 MV Switchgear
KYN28-12 MV Switchgear

±0.1mm robotic assembly and 316L nano-ceramic enclosure ensure 50kA withstand and maintenance-free reliability.

Overview
Key Applications
Why Choose?
Engineering
Technical Specifications
Customization
Support
Overview
The TSTY KYN28A-12 Armored Removable AC Metal-Enclosed Switchgear is engineered for three-phase 50/60Hz systems requiring uncompromising safety, precision, and environmental resilience in 12kV power distribution. Unlike conventional welded cabinets, this series leverages ±0.1mm high-precision industrial robots and 316L stainless steel substrates with nano-ceramic coating to achieve ≥99% component standardization and 30-year corrosion resistance validated by 3,000-hour salt spray testing.
Compatible with ZN63A (VS1), ABB VD4, Siemens 3AV3, and Schneider HVX vacuum circuit breakers, it supports up to 4000A busbar current and 50kA short-circuit breaking capacity. Its fully interlocked "five-prevention" system, independent pressure relief ducts, and closed-door operation capability ensure personnel safety, while modular trolley interchangeability and dedicated transport vehicles minimize downtime during maintenance.
Key Applications
These units are specifically designed for 12kV networks where robotic precision, extreme environmental durability, and multi-brand breaker compatibility distinguish them from standard welded or painted switchgear alternatives.
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Transmission & Distribution Substations
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Renewable Energy Collection Systems
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Industrial Manufacturing Power Centers
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Photovoltaic Power Station
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Subway Station
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Commercial & High-rise Buildings
Why Choose TSTY KYN28A-12 Switchgear?
All units feature center-mounted trolleys, spacious cable compartments, and optional smart monitoring integration for decades of reliable indoor service.
Robotic precision manufacturing

±0.1mm tolerance via industrial robots ensures ≥99.5% dimensional accuracy and ≥99% part standardization, eliminating field fit-up issues and guaranteeing seamless trolley interchangeability across the entire installation.

30-year environmental resilience

316L stainless steel base with nano-ceramic coating passes 3,000h salt spray and 200 thermal cycle tests; German electrostatic water-based paint achieves ≤5μm uniformity and 0.3% defect rate, ensuring zero-maintenance appearance in coastal, chemical, or extreme-temperature sites.

Universal breaker compatibility

Supports domestic ZN63A/ZN85 and international ABB VD4/Siemens 3AV3/Schneider HVX without cabinet modification, enabling lifecycle cost optimization and supply chain flexibility while maintaining full type-test validity.

Verified operational safety

Independent pressure relief ducts per compartment, mechanical/electrical "five-prevention" interlocks, and IP4X/IP2X protection even with door open; all validated through 72h full-load temperature rise and ≥20,000 mechanical life tests per IEC 62271.

Closed-door operability

Breaker racking, grounding switch operation, and status indication performed with HV compartment sealed, eliminating arc-flash exposure risk during routine switching and testing procedures.

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Engineering & Global Compliance
Every TSTY KYN28A-12 Switchgear integrates intelligent manufacturing with multi-standard validation:
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Dimensional & interchangeability verification

Laser scanning confirms ±0.1mm assembly tolerance on every cabinet; trolley swap test documented per IEC 62271-200 to validate free interchangeability without adjustment.

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Coating & corrosion validation

Salt spray and thermal cycling test reports referenced to actual batch samples; coating thickness and adhesion measured per ISO 12944 to confirm 30-year C5-M environment suitability.

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Type-test performance assurance

72h full-load temperature rise, 50kA short-time withstand, and 20,000-cycle mechanical endurance tested in CNAS-accredited lab; reports traceable to IEC 62271-1/200 and GB/T 3906.

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Multi-brand breaker coordination

Interface compatibility verified for each supported breaker model; interlock timing and clearance measurements documented to ensure safe operation regardless of selected interrupter.

Technical Specifications
Standard configurations for KYN28A-12 armored removable switchgear, 12kV rated voltage, 50/60Hz, up to 4000A busbar, 50kA breaking capacity, IP4X/IP2X, compliant with IEC 62271-200, GB/T 3906, CE, SGS.
KYN28-12 MV Switchgear

No.

Item

Unit

Data

1

Rated voltage

kV

3.6, 7.2, 12

2

Rated frequency of circuit breaker

Hz

50

3

Rated current of circuit breaker

A

630, 1250, 1600, 2000, 2500, 3150, 4000

4

Rated current of switchgear

A

630, 1250, 1600, 2000, 2500, 3150, 4000

5

Rated short-time withstand current (4s)

kA

16, 20, 25, 31.5, 40, 50

6

Rated withstands current (peak)

kA

40, 50, 63, 80, 100, 25

7

Rated short-circuit breaking current

kA

16, 20, 25, 31.5, 40, 50

8

Rated short-circuit closing current (peak)

kA

40, 50, 63, 80, 100, 25

9

Rated insulation level

1 min power frequency withstands voltage

between poles, pole to earth

kV

24, 32, 42

between open contacts

kV

24, 32, 48

Lightening impulse withstands voltage (peak)

between poles, pole to earth

kV

40, 60, 75

between open contacts

kV

46, 70, 85

10

Protection level

 

Shell: IP4X; IP2X when the CPT and CB doors are open

Customization & Optional Features
Every TSTY KYN28A-12 Switchgear is built to order with options reflecting intelligent manufacturing capabilities:
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Breaker Selection & Compatibility

ZN63A (VS1) for cost efficiency, or ABB VD4/Siemens 3AV3/Schneider HVX for global specs; all pre-validated for trolley interface and interlock coordination without cabinet modification.

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Busbar & Fault Rating Tailoring

Standard 630–4000A main bus, 2500A transfer current, 31.5/50kA breaking; custom ratings available based on verified type-test data to match exact system requirements.

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Environmental Adaptation Packages

Nano-ceramic + German paint for C5-M/CX zones; anti-condensation heaters and IP23D ventilation for humid/tropical sites; low-temperature lubricants for -40°C operation.

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Smart Monitoring Integration

Embedded sensors for temperature, humidity, and partial discharge; Modbus/IEC 61850 communication; optional motorized racking and remote position indication for unmanned substations.

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Aesthetic & Functional Customization

RAL color matching, bilingual labels, QR-coded digital manuals; custom compartment layouts for special relay, metering, or arc-flash protection requirements.

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Maintenance & Service Optimization

Dedicated trolley transport vehicle included; spare parts kits tailored to breaker brand; extended warranty packages backed by 80+ country service network.

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Safety & Interlock Enhancements

Optional electrical interlocks for remote operation verification; arc-flash detection systems with <10ms trip response; enhanced mechanical locks for high-security facilities.

Support & Documentation
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IEC-compliant datasheets and one-line diagrams
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Full type-test reports (lightning impulse, etc.)
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Installation, operation & maintenance manuals
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Regional technical support: 24/7 engineering assistance + spare parts hubs in Asia, Africa, and the Middle East

Ready to Specify for Your Project?

Tell us your project requirements—voltage level, environment, grid code, or delivery timeline—and we’ll provide a compliant, optimized solution.

Ready to Specify for Your Project?