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DYSRM16-12 inflatable (totally enclosed) ring main unit
Ⅰ.Overview
Dysrm16-12 inflatable SF6 metal enclosed full insulation series ring network switchgear has been listed as a high-tech product in Zhejiang Province through the type test of the national high voltage apparatus test center and the high-tech project of Zhejiang Province. Widely used in 10kV / 6K power distribution system, it is the preferred switch product for power transformation and distribution systems of various users in urban and rural areas.
The switch cabinet is modular unit mode, which can be combined according to different purposes; It consists of fixed unit combination and expandable unit to meet the needs of various substations for flexible use of compact switchgear. Dysrim16-12 inflatable switchgear is a completely sealed system, and all live parts and switches are enclosed in a stainless steel shell. The whole switchgear is not affected by external environmental conditions, which can ensure operation reliability and personal safety, and realize maintenance free. By selecting expandable bus, any combination can be realized to achieve full modularization. The expansion bus is safely insulated and shielded to ensure high reliability and safety. Dysrm16-12 inflatable switchgear can also provide TV automation solution, form the concept of intelligent switch, and minimize the workload of on-site installation and commissioning.
DYSRM16-12 inflatable switchgear is divided into non expandable standard configuration and expandable standard configuration. Because of the combination of full module and half module and its own scalability, it has extremely special flexibility.
Dysrm16-12 inflatable switch complies with GB standard. The design life for operation under indoor conditions (40 ℃) and outdoor conditions (- 50 ℃) is more than 30 years.
Ⅱ. Performance index
◆ SF6 gas pressure ◇ the absolute pressure is 1.4 bar at 20 ℃ ◇ the annual gas leakage rate is 0.2 ‰ / year ◇ protection grade IP67 ◇ the thickness of stainless steel in the air chamber is 3.0mm ◆ bus ◇ bus in switch cabinet 400mm2cu ◇ switch cabinet grounding bus 150mm2cu ◆ color ◇ front panel of switch cabinet ral7012 ◇ side plate and front cover plate of cable chamber ral7035 | ◆ normal operating environmental conditions ◇ maximum temperature 40 ℃ ◇ minimum temperature - 50 ℃ ◇ maximum average relative temperature ≤ 95% ◇ altitude ≤ 2000m ◆ meet standards GB/T11022 GB3906 GB1985 GB16926 GB38041 GB1984 GB3309 IEC60056 IEC60129 IEC60256 IEC60298 IEC60420 IEC60694
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Ⅲ.Specification
Name | Unit | C module | F module | V module | CB module | ||
Load switch | Composite apparatus | Vacuum switch | Isolate / ground switch | Vacuum(circuit)breaker | Isolate / ground switch | ||
Rated voltage | KV | 12 | 12 | 12 | 12 | 12 | 12 |
Rated frequency | HZ | 50 | 50 | 50 | 50 | 50 | 50 |
Power frequency withstand voltage (alternate / break) | kV | 42/48 | 42/48 | 42/48 | 42/48 | 42/48 | 42/48 |
Lightning impact withstand voltage | kwV | 75/85 | 75/85 | 75/85 | 75/85 | 75/85 | 75/85 |
Rated current | A | 630 | Note 1) | 630 | 1250/630 | ||
Breaking capacity | |||||||
Rated closed-loop open off current | A | 630 | |||||
Rated cable charge-off current | A | 10 | |||||
Rated short-circuit turn-off current (peak) | A | 50 | 80 | ||||
Rated peak tolerance current | kA | 50 | |||||
Rated short-time tolerated current | kA/35 | 20 | 25 | ||||
Rated short-circuit open current | kA | 31.5 | 20 | ||||
Rated transfer current | A | 1700 | |||||
Maximum current of the fuse is used | A | - | 125 | ||||
Loop resistance | -n | ≤ 300 | ≤600 | ||||
mechanical life | time | 5000 | 3000 | 5000 | 2000 | 5000 | 5000 |
Note: 1) Depending on the current rating of the fuse
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