KYN28-12 Series metal-clad central-mounted type metal-enclosed switch cabinet (short for “switchgear") is a new type of product deigned on the basis of absorbing foreign advanced technology, can replace all kinds of old types of switchgears.
KYN28-12 is the complete distributing device of the single bus bar and sectional system of 3.6-12kV、3phase and 50Hz,It is mainly used for transmitting of power plant, middle and miniature generator, distributing of the industrial and mining enterprises and feeding and receiving of the secondary substation of the power system and starting of the high voltage electric motor ect., which is used for protecting and monitoring of the power system.
This switchgear cubicle comply with the standards IEC298 and GB3906. It has a pushing trolley with load and it has the interlock function of protection the earthing switch from fault opening and closing the circuit breaker. It can be fitted with the VCB VS1 vacuum circuit breaker, as the EV12, HVX vacuum circuit breaker made by Schneider Electric, the 3AE vacuum circuit breaker made by Siemens well as the VD4 vacuum circuit breaker made by ABB.
It is a kind of distributing device with advantageous function indeed.
Working conditions:
- Ambient temperature: -10° C~+ 40° C
- Relative humidity: Daily average ≤95%, Monthly average ≤90%
- Altitude: ≤1000m
- Earthquake intensity: ≤ magnitude 8
- Working in places without danger of fire, exploding, severe shaking, chemistry erosion/
- Customized products are available.
Notes:
① Please contact to electric heater when relative humidity is more than 70%
② When altitude is more than 1000 m, Please process the situation cording to JB/Z102-71 regulation
Technical parameters:
|
Item |
Unit |
Data |
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|
Rated voltage |
KV |
3.6 |
7.2 |
12 |
||||
|
Rated Frequency |
Hz |
50 |
50 |
50 |
||||
|
Circuit breaker rated current |
A |
630 |
1250 |
1600 |
2000 |
2500 |
3150 |
|
|
Switch cabinet rated current |
A |
630 |
1250 |
1600 |
2000 |
2500 |
3150 |
|
|
Rated short-time withstand current |
KA |
16 |
20 |
25 |
31.5 |
40 |
50 |
|
|
Rated peak withstand current |
KA |
40 |
50 |
63 |
80 |
100 |
125 |
|
|
Rated short-circuit breaking current |
KA |
16 |
20 |
25 |
31.5 |
40 |
50 |
|
|
Rated short-circuit making current (peak) |
KA |
40 |
50 |
63 |
80 |
100 |
125 |
|
|
Rated insulation level
|
1 min power frequency withstand voltage |
KV |
24 |
32 |
42 |
|||
|
Lightning impulse withstand voltage |
KV |
40 |
60 |
75 |
||||
|
Protection class |
Shell—IP4X, IP2X when isolation room and circuit breaker doors are open |
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Product reference standards:
- GB1984 exchange high voltage circuit breaker,
- GB3906 3 ~ 35 kV ac metal-enclosed switchgear,
- GB/T11022 voltage switch equipment and control equipment standard public technical requirements,
- DL/T404 indoor exchange high-voltage switchgear order technical conditions.
