Overview
XGN15-12/24/36 Air Insulated RMU (Fixed Type), used in rated voltage 12/24/36kV, rated current 630A and below the ring power supply or radiation power supply system, especially suitable for pre-installed substation as a power system control and protection. This product is equipped with FLN36-12D type sulfur hexafl uoride load switch or FLRN36-12D type load switch and disintegrator combination electrical appliances, with small size, light weight, easy operation, light operation force, reliable interlock, maintenance-free and other characteristics, is a new generation of high voltage switchgear required for urban power grid transformation and construction.
This product complies with: GB3906 “3~35kV AC metal enclosed Switchgear”, GB/T11022 “High voltage switchgear and control equipment standard common technical requirements”, IEC298 “rated voltage above 1kV 50kV and below AC metal enclosed switchgear and control equipment”, DI/T404 “Indoor AC high voltage switch cabinet ordering technical specifi cations” standard.
Model Meaning
| X | G | N | 15 | – | 12/24/36 | (F.R) |
| ↓ | ↓ | ↓ | ↓ | | | |
| Box type | Stationary | Indoor | Design sequence number | | Rated voltage | Load switch-breaker combination appliance |
Normal Service Condition
1 Ambient air temperature: -15℃ ~+40℃ ;
2 Altitude: 1000m and below;
3 Humidity conditions:The daily average value is not more than 95%, and the daily average water vapor pressure is not more than 2.2kPa; The monthly average value is not more than 90, and the monthly average water vapor pressure is not more than 1.8kPA.
4 Earthquake intensity: not more than 8 degrees;
5 There is no obvious pollution such as turbid or combustible gas.
Note: When the above normal conditions of use are exceeded, the user can negotiate with the company.
XGN15-12/24/36 Air Insulated RMU (Fixed Type)
| Sr.No. | Description | Unit | Value |
| 1 | Rated voltage(Ur) | kV | 12 | 24 | 36 |
| 2 | Rated current(Ir) | A | 630 | 630 | 630 |
| 3 | Rated frequency(fr) | Hz | 50 | 50 | 50 |
| 4 | Rated short-time power-frequency withstand voltage/1min
(phase-to-phase &to-earth/across the isolating distance) | kV | 28/32 | 50/60 | 70/80 |
| 5 | Rated lightning impulse withstand voltage
(phase-to-phase &to-earth/across the isolating distance) | kV | 75/85 | 125/145 | 170/195 |
| 6 | Rated short-time withstand current | kA/s | 45741 | 45736 | 45673 |
| 7 | Rated peak withstand current | kA | 62.5 | 50 | 40 |
| 8 | Rated short-circuit making current | kA | 62.5 | 50 | 40 |
| 9 | Rated transfer breaking current | A | 1700 | 1400 | 630 |
| 10 | Rated closed-loop breaking current | A | 630 | 630 | 630 |
| 11 | Maximum rated current of the fuse | A | 200 | 200 | 63 |
| 12 | Main switch Mechanical endurance | ops | M2(5000) | M2(5000) | M1(1000) |
| 13 | Earthing switch | ops | M1(2000) | M1(2000) | MO(1000) |
| 14 | Electrical endurance | 1 | Class E3 | Class E3 | Class E3 |
| 15 | IAC class | 1 | A-FLR
20kA/1s
25kA/1s | A-FLR
16kA/1s
20kA/1s | A-FLR
16kAV1s |
| 16 | Degree of protection | 1 | IP4X | P4X | IP4X |
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