product
KYN28-24 Indoor metal-clad movable cabinet
KYN28-24 type cabinet is the newly developed switchgear with high reliability. It is suitable for the electric power system with indoor 3PH/ 50/60HZ and rated voltage 24KV and mainly applies to electric power plants, substation, industrial and mining enterprises as well as high buildings for receiving and distributing electric energy and for electric circuits control, protection and monitoring as well. Aluminum alloy extrusions frame makes the whole device light and easy for transportation and installation. Modular design makes it more convenient for integration. It complies with GB3906、DL/T404 as well as IEC62271-200:2003.
Technical parameters:
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No. |
Description |
Unit |
Specification |
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1 |
Rated Voltage |
kV |
24 |
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2 |
Insulation Level |
One minute power frequency withstand voltage |
kV |
Between poles/ pole to earth |
65 |
Between open contacts |
79 |
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Lightning impulse withstand voltage(peak) |
Between poles/ pole to earth |
125 |
Between open contacts |
145 |
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3 |
Rated Frequency |
Hz |
50/60 |
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4 |
Rated Current |
A |
630、1250、1600、2000、2500 |
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5 |
Rated short-circuit breaking current |
kA |
20 |
25 |
31.5 |
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6 |
Rated short-circuit making current (peak) |
50 |
63 |
80 |
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7 |
Rated short-time withstand current(4s) |
20 |
25 |
31.5 |
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8 |
Rated peak withstand current |
50 |
63 |
80 |
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9 |
Rated auxiliary control circuit voltage |
V |
AC/DC 110/220V |
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10 |
Auxiliary control circuit power frequency withstand voltage |
2000 |
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11 |
Protection level |
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IP4X (Enclosure) IP2X(when the door of circuit breaker chamber is open) |
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12 |
Overall dimension(W*D*H） |
mm |
800×1810×2450、1000×1810×2450 |
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13 |
Weight |
kg |
840～1440 |
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Working conditions:
1. Ambient temperature: -10° C~+ 40° C Daily average ≤35°C
2. Altitude: ≤1000m
3. Relative humidity: daily average ≤95%, daily average of water vapor pressure ≤2.2kpa
4. Earthquake intensity: ≤ magnitude 8
5. Working in places without danger of corrosive or inflammable gas and obvious pollution
6. Note: Customized products are available.