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Dowei Electric Gas Insulated Switchgear (GIS) ZF23-72.5,ZF23-126,ZF23-145

Dowei Electric Gas Insulated Switchgear (GIS) ZF23-72.5,ZF23-126,ZF23-145

Product catalog summary

Overview: This document provides detailed specifications for Gas Insulated Switchgear (GIS) solutions offered by Ningbo Dowei Electric Co., Ltd. The GIS solutions are designed for high reliability, compactness, and economic efficiency, suitable for both indoor and outdoor installations.

Standards and Certifications: The GIS products comply with international standards such as IEC 62271, ANSI/IEEE Std C37, and NEMA. They are certified by ISO 9001, KEMA, CESI, CE, TUV, UL, and ASTA. The designs also meet seismic standards (ETGI-1.020, IEEE Std 693, NCh2369) and structural standards (ASTM A325, ANSI/AISC 360, AWS D1.1).

General Features: The GIS solutions are modular and compact, offering flexibility in layout optimization. They are designed to operate at high altitudes (~5000m) and within a temperature range of -30°C to +40°C.

Product Specifications:

72.5kV GIS: Voltage withstands up to 160 kV, lightning impulse up to 375 kVp, continuous current up to 3150A, and short-time withstand current up to 40 kA.
126kV GIS: Voltage withstands up to 265 kV, lightning impulse up to 630 kVp, continuous current up to 3150A, and short-time withstand current up to 40 kA.
145kV GIS: Voltage withstands up to 315 kV, lightning impulse up to 750 kVp, continuous current up to 3150A, and short-time withstand current up to 40 kA.
170kV GIS: Voltage withstands up to 375 kV, lightning impulse up to 860 kVp, continuous current up to 4000A, and short-time withstand current up to 50 kA.
245kV GIS: Voltage withstands up to 530 kV, lightning impulse up to 1200 kVp, continuous current up to 4000A, and short-time withstand current up to 63 kA.
362kV GIS: Voltage withstands up to 650 kV, lightning impulse up to 1425 kVp, continuous current up to 5000A, and short-time withstand current up to 63 kA.
72.5kV Vacuum Interrupter GIS: Features a hermetically tight vacuum interrupter, voltage withstands up to 160 kV, lightning impulse up to 375 kVp, continuous current up to 2000A, and short-time withstand current up to 31.5 kA.

Operational Characteristics: The GIS solutions feature a spring-operated mechanism for both three-phase and single-phase drives, with mechanical endurance classified as M2 and capacitive switching as C2. The operating sequence is O-0.3s-CO-3 min-CO, with breaking times ranging from 50 ms to 100 ms depending on the model.

Conclusion: Ningbo Dowei Electric Co., Ltd. offers a comprehensive range of GIS solutions that are highly reliable, compact, and suitable for various voltage levels and operational conditions, ensuring flexibility and efficiency in power transmission and distribution.

Catalog excerpts

Dowei Electric Gas Insulated Switchgear (GIS) ZF23-72.5,ZF23-126,ZF23-145-2

General Description: • IEC 62271, ANSI/IEEE Std C37, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m • High reliability, smart, compact and economic switchgear solutions • Modular compact GIS offering outstanding flexibility for optimizing layouts Typical Specification: Gas Insulated Switchgear (GIS) 72.5kV General rating DOM/El Reference standard IEC/IEEE Withstand voltage - Short-duration power-frequency, phase-to-earth / across...

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Dowei Electric Gas Insulated Switchgear (GIS) ZF23-72.5,ZF23-126,ZF23-145-3

General Description: • IEC 62271, ANSI/IEEE Std C37, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m • High reliability, smart, compact and economic switchgear solutions • Modular compact GIS offering outstanding flexibility for optimizing layouts Typical Specification: Gas Insulated Switchgear (GIS) 126kV General rating DOM/El Reference standard IEC/IEEE Withstand voltage - Short-duration power-frequency, phase-to-earth / across...

Open the catalog to page 3

Dowei Electric Gas Insulated Switchgear (GIS) ZF23-72.5,ZF23-126,ZF23-145-4

Gas Insulated Switchgear (GIS) 145kV General Description: • IEC 62271, ANSI/IEEE Std C37, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m • High reliability, smart, compact and economic switchgear solutions • Modular compact GIS offering outstanding flexibility for optimizing layouts General rating Reference standard IEC/IEEE Withstand voltage - Short-duration power-frequency, phase-to-earth / across isolating distance 275/315...

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Dowei Electric Gas Insulated Switchgear (GIS) ZF23-72.5,ZF23-126,ZF23-145-5

General Description: • IEC 62271, ANSI/IEEE Std C37, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m • High reliability, smart, compact and economic switchgear solutions • Modular compact GIS offering outstanding flexibility for optimizing layouts Typical Specification: Gas Insulated Switchgear (GIS) 170kV General rating Reference standard Voltage Withstand voltage - Short-duration power-frequency, phase-to-earth / across isolating...

Open the catalog to page 5

Dowei Electric Gas Insulated Switchgear (GIS) ZF23-72.5,ZF23-126,ZF23-145-6

Gas Insulated Switchgear (GIS) 245kV General Description: • IEC 62271, ANSI/IEEE Std C37, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m • High reliability, smart, compact and economic switchgear solutions • Modular compact GIS offering outstanding flexibility for optimizing layouts General rating Reference standard IEC/IEEE Withstand voltage - Short-duration power-frequency, phase-to-earth / across isolating distance 460/530...

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Dowei Electric Gas Insulated Switchgear (GIS) ZF23-72.5,ZF23-126,ZF23-145-7

Gas Insulated Switchgear (GIS) 362kV General Description: • IEC 62271, ANSI/IEEE Std C37, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m • High reliability, smart, compact and economic switchgear solutions • Modular compact GIS offering outstanding flexibility for optimizing layouts General rating IEC/IEEE 362 kV 1.3-1.5 50/63 kA 125/160 kAp O-0.3s-CO-3 min-CO Spring-operated mechanism M2 class C2 class Reference standard Voltage...

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Dowei Electric Gas Insulated Switchgear (GIS) ZF23-72.5,ZF23-126,ZF23-145-8

General Description: • IEC 62271, ANSI/IEEE Std C37, NEMA • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m • Highly reliability due to the hermetically tight vacuum interrupter • Modular compact GIS offering outstanding flexibility for optimizing layouts • Completely factory assembled, tested and shipped in single transport unit Gas Insulated Switchgear (Vacuum Interrupter + SF6 insulation) 72.5kV General rating (Circuit Breaker + Disconnector...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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