| Customization: | Available |
|---|---|
| Certification: | VDE |
| Shell Material: | Steel Plate |
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- GMA is mainly used as a primary power distribution equipment for gas-insulated single bus systems
.infrastructure
.Government agencies
.Electronics industry
.Transportation industry
.High-end commercial construction
| Rated insulation level | |||||
| Rated voltage | kV | 12/24 | |||
| Rated short-time power frequency withstand voltage | interphased, relatively | kV | 42/65 | ||
| Isolate the fracture | kV | 48/79 | |||
| Rated lightning impulse withstand voltage | interphased, relatively | kV | 75/125 | ||
| Isolate the fracture | kV | 85/145 | |||
| Rated frequency | Hz | 50 | |||
| Rated current, short-circuit current level | |||||
| The rated current of the main bus | A | 1250-2000 | |||
| Branch bus current rating | A | 630 ,1250 | |||
| Rated short-time withstand current | kA | 31.5/25 | |||
| Rated peak withstand current | kA | 80/63 | |||
| Rated short-circuit duration | s | 4 | |||
| Circuit breaker parameters | |||||
| Rated short-circuit interrupting current | kA | 31.5/25 | |||
| Rated short-circuit closing current | kA | 80/63 | |||
| Mechanical life | time | 20000 | |||
| Circuit breaker rating | M2-E2-C2 | ||||
| Rated number of short circuit breaks | time | 50 | |||
| Environmentally friendly gases | |||||
| Rated Charging Pressure (relative pressure at 20ºC) | MPa | 0.031) | |||
| Low Pressure Alarm Pressure (Relative Pressure at 20ºC) | MPa | 0.02 | |||
| Minimum functional (latching) pressure (relative pressure at 20ºC) | MPa | 0.01 | |||
| Dry air gas humidity (at 20ºC) | µL/L | ≤250 | |||
| Annual air leakage rate | % | ≤0.05 | |||
| Environmental conditions (IEC 62271-1) | |||||
| Installation site | indoor | ||||
| maximum | ºC | 40 | |||
| 24-hour average | ºC | ≤35 | |||
| minimum | ºC | -5 or -25 | |||
| Installation altitude | m | ≤10005) | |||
| Degree of protection ( IEC 60529 ) | |||||
| Inflatable compartments | IP67 | ||||
| Operating mechanism and low-pressure compartment | IP4X/IP5X2) | ||||
| Cable compartment (with compartment door open) | IP2X | ||||
| width | Circuit breaker cabinet, bus unit, isolation lifting cabinet | mm | 600 | ||
| Isolation cabinets, PT cabinets, direct connection cabinets, metering | 750/800 | ||||
| Metering cabinet M4 | 600/800 | ||||
| Bus-tie circuit breaker sectional cabinet | mm | 800 | |||
| depth | General standard cabinet type | mm | 10503) | ||
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