TKYN28-12 Armored removable AC metal-enclosed switching device
Product overview
TKYN28-12(GZS1) armored removable indoor AC metal-enclosed switching device (hereinafter referred to as “switchgear”) is suitable for three-phase AC 50Hz power system, which is used to receive and distribute electric energy and to control, protect and monitor the circuit. The newly developed high-current, high-off switchgear can also be used as a high-voltage generator outlet.
This product conforms to the standard: GB3906 3-35kV Metal-enclosed Switchgear GB / T11022 Common Technical Requirements for High Voltage Switchgear and Control Equipment Standard IEC298 Rated Voltage Above 1KV 52kV and Below AC Metal-enclosed Switchgear and Control Equipment.
Main technical parameters
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Project |
Unit |
Data |
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Rated voltage |
kV |
3.6、7.2、12 |
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Rated frequency |
Hz |
50 |
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Rated current of circuit breaker |
A |
630、1250、1600、2000、2500、3150、4000 |
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Rated current of switchgear |
A |
630、1250、1600、2000、2500、3150、4000 |
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Rated short-time withstand current (4S) |
kA |
16、20、25、31.5、40、50 |
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Rated peak withstand current (peak) |
kA |
40、50、63、80、100、125 |
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Rated short-circuit breaking current |
kA |
16、20、25、31.5、40、50 |
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Rated short-circuit closing current (peak) |
kA |
40、50、63、80、100、125 |
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Rated insulation level |
1min power frequency withstand voltage |
Interpolar and Polar region |
kV |
24、32、42 |
|
Fracture space |
kV |
24、32、48 |
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雷电冲击耐受电压（峰值） Lightning impulse withstand voltage (peak) |
Interpolar and Polar region |
kV |
40、60、75 |
|
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Fracture space |
kV |
46、70、85 |
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levels of protection |
The housing is IP4X, compartment and the breaker door is IP2X when it opens |
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Note:
1. the short-circuit capacity of current transformer should be considered separately;
2. TZN63A-12 technical parameters are detailed in the corresponding samples
3. The rated current of 1000m above sea level ≤ 1250A rated breaking current ≤ 31.5 Ka.
