ROCKWILL 12kV MV Switchgear Solution: Handum nga Pagkotrol sa Kuryente ngadto sa Minimized nga Oras sa Wala'y Trabaho

1. Buhatan sa Solusyon

Produkto: KYN28 Indoor Metal-Clad Withdrawable Switchgear
Boltahan: 3.6kV, 7.2kV, 12kV, o 24kV (Piliin batas sa sistema voltaje)
Paggamit: Distribusyon ng planta ng kuryente, pagtanggap/pagpapadala ng substation, industriyal na planta ng kuryente, pagsisimula ng malaking HV motor.
Pangunahing Bentahe: Sentral na disenyo ng pagkuha para sa bahagi ng de-energization sa panahon ng pag-aayos, minimisa ang downtime.

2. Puntod ng Teknikal na Espekisipikasyon

Parameter	Halaga
Rated Voltage (kV)	3.6 / 7.2 / 12 / 24
Rated Frequency (Hz)	50 / 60
Rated Current (A)	630 / 1250 / 1600 / 2000 / 2500 / 3150 / 4000
Rated Short-Circuit Breaking Current (kA)	20 / 25 / 31.5 / 40
Rated Short-Time Withstand Current (4s) (kA)	20 / 25 / 31.5 / 40
Power Frequency Withstand (1 min)	Dry: 34-65kV (iba-ibang voltaje) Wet: 28-50kV (iba-ibang voltaje)
Lightning Impulse Withstand (kV)	75-125kV (iba-ibang voltaje)
Protection Class (Housing)	IP4X
Ambient Temperature	-15°C hanggang +40°C
Max. Installation Altitude	1000m
Mechanical Life (Circuit Breaker)	VS1/VD4: 10,000 ops VSM: 100,000 ops

3. Pangunahing Katangian sa Disenyo

Armored Compartmentalization: Apat na buong nahahati metal compartments (Busbar, Breaker, Cable, Instrumentation) para sa enhanced safety (IEC 298 / GB 3906-91 compliant).
Centralized Draw-Out: Breaker (halimbawa, VD4, VS1, 3AH3) na naka-mount sa isang withdrawable truck. Nagbibigay ng "hot" busbar maintenance nang walang full system shutdown.
Modular & Flexible: Standard widths (800mm/1000mm) nagbibigay ng madaling pag-combine ng functional units (incomer, feeder, metering, PT).
Special CT Design: Nagpapahusay ng front-end wall-mounting at maintenance access.
High-Performance Components: Mas mahusay na insulating materials & conductive elements sigurado ang stability sa panahon ng fault conditions.
Compatibility: Sumusuporta sa pangunahing vacuum breakers (VS1, ABB VD4, Siemens 3AH3, GE VB2, ROCKWILL VSM).

4. Pisikal na Layout & Dimensyon

(Piliin batas sa Rated Current & Configuration)

Cabinet Width (A)	Depth (B) (mm)	Height (mm)	Typical Weight (kg)	Recommended Use Case
650 mm	1400 mm	2200 mm	700	<1250A, Compound Insulation, Front Cable Access
800 mm	1500 mm	2200 mm	800	<1250A, Air Insulation, Front Cable Access
800 mm	1600 mm	2200 mm	900	<1250A, Rear Overhead Line
1000 mm	1500 mm	2200 mm	1100	>1250A, Front Cable Access
1000 mm	1600 mm	2200 mm	1200	>1250A, Rear Overhead Line
900 mm	1700 mm	2200 mm	1000	Specific config (e.g., with Siemens 3AH5)

Note: Height may reduce to 1660mm for 1000mm wide cabinets with rear overhead lines >1600A.

5. Pagpipili ng Component

Instrumentation: Special CTs for front access, VTs, surge arresters, relay protection devices (overload, short-circuit, earth fault).
Busbars: Main & branch busbars rated equal to circuit current.
Earthing: Integral earthing switch.

6. Implementasyon & Serbisyo

Specification: Define voltage, current, SC rating, breaker type, and layout (front/rear cable access).
Customization: ROCKWILL provides tailored solutions (design, assembly, testing).
Installation: Requires stable environment (<1000m, -15°C to +40°C, <95% humidity). No corrosive gases/vibration.
Commissioning: Functional & safety checks per IEC/GB standards.
Maintenance: Utilize draw-out feature for partial de-energization. Minimal maintenance due to robust design.
After-Sales Support:

7. Bakit Pumili ng Ito?

Safety: Segregated compartments, front-access CTs, compliance with IEC/GB/DL standards.
Reliability: High-quality components, proven design, comprehensive testing.
Minimal Downtime: Draw-out breaker enables partial maintenance without shutdown.
Flexibility: Modular design simplifies expansion/modification.
Global Support: ROCKWILL’s 20+ years of expertise and direct technical support