| Certification: | ISO9001 |
|---|---|
| Shell Material: | Steel Plate |
| Installation: | Fixed |
| Structure: | Cabinet |
| Current: | AC |
| Rated Frequency: | 50Hz |
| Samples: |
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| Customization: |
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Product overview
KYNl8A-12 indoor type alternating-current metal-clad withdrawable metal-enclosed switchgear (hereinafter referred to as switchgear) is a kind of mid-set vacuum switchgear. It usually uses ZN22B-12 vacuum circuit breaker as the vacuum switch,
also can be equipped with ZNl2-10 vacuum circuit breaker, or 3AF and 3AH vacuum circuit breakers from Siemens. It is
applicable for three-phase single-bus power systems of AC50HZ and voltage class 3-10kV, used for electric energy receiving
and distribution. It is widely used in power plants, substations, and industrial and mining enterprises. It can be installed against the wall (not recommended) or not against the wall.
It complies with GB3906-91 A.C. metal-enclosed switchgear for rated voltages of 3~35kV, DL404-91 Indoor AC high voltage switchgear panel, IEC298 Alternating-current metal-enclosed switchgear and controlgear, etc.
Technical parameters
| Item | Unit | Data | |||
| Rated voltage (max working voltage) | KV | 12 | |||
| Rated insulation level | 1min power frequency withstand voltage Lightning impulse withstand voltage |
KV KV |
42 75 |
||
| Protection class | Shell IP4X | ||||
Technical parameters of ZN22B-5.ZNl 12-10Q vacuum circuit breaker
Technical parameters of vacuum circuit breaker, see the following table
Technical parameters of ZN-10B (electromagnetic mechanism) vacuum circuit breaker
| Rated voltage | KV | 12 | ||
| Rated current | A | 1250,1600,2000,3150 | 1600,2000,3150 | |
| Rated short-circuit breaking current Rated short-circuit making current Rated short-time withstand current Rated peak withstand current Rated short-circuit breaking times |
KA KA KA KA KA |
31.5 80 31.5/4s 80 50 |
40 100 40/4s 100 30 |
50 125 50/3s 125 30 |
| Rated operating sequence | Times | 0-0.3s-CO-180s-CO | 0-180s-CO-180s-CO | |
Normal service conditions
1.Ambient air temperature: upper limit see table 1, lower limit is -10ºC.
| Altitude (m) | 1000 | 2000 | 3000 |
| Max ambient air temperature | 40ºC | 35ºC | 30ºC |
2.Altitude: not exceed 1000m (special order not exceed 3000m).
3.Relative humidity: daily mean not exceed 95%, monthly mean not exceed 90%. When temperature falls sharply in high humidity period, condensation phenomenon is permissible. The switchgear can be used under conditions specified by GB3906-91 4.Appendix E Class 1.
5.Ambient air should be free of pollution of corrosive gas or water vapor.
6.No recurrent severe vibration.
Factory
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