KYN28A-12(GZS1) type metal armored move-open switchgear cabinet
KYN28A-12(GZS1) type metal armored move-open switchgear is the indoor complete power distribution device for three-phase AC 50Hz, rated voltage 3.6~12KV single busbar and single busbar sectionalized system. It is suitable for power plants, substations, airports, docks, factories, mines and enterprises, hotels, financial high-rise and civil buildings and other indoor power supply systems, as the acceptance, distribution of power and monitoring and protection of the power grid. The switchgear has the five functions of preventing from wrongly opening and closing circuit breaker ; preventing from opening and closing isolation switch with load; preventing from hanging (closing) grounding line ( grounding switch ); preventing from closing circuit breaker with grounding line (grounding switch); and preventing from mistakenly entering into the electrically charged intervals, and it is a kind of power distribution device with superior performance.
Categories：
High And Low Voltage Switchgear
Product overview
KYN28A-12(GZS1) type metal armored move-open switchgear is the indoor complete power distribution device for three-phase AC 50Hz, rated voltage 3.6~12KV single busbar and single busbar sectionalized system. It is suitable for power plants, substations, airports, docks, factories, mines and enterprises, hotels, financial high-rise and civil buildings and other indoor power supply systems, as the acceptance, distribution of power and monitoring and protection of the power grid. The switchgear has the five functions of preventing from wrongly opening and closing circuit breaker ; preventing from opening and closing isolation switch with load; preventing from hanging (closing) grounding line ( grounding switch ); preventing from closing circuit breaker with grounding line (grounding switch); and preventing from mistakenly entering into the electrically charged intervals, and it is a kind of power distribution device with superior performance.
Model and meaning
KYN28A-12
K-Armored metal-enclosed switchgear
Y-Movable
N - Conditions of use: (indoor)
28 - Design number
12 - Rated voltage (kV)
Basic parameters
name (of a thing) | unit (of measure) | parameters | |
Rated frequency | Hz | 50 | |
rated voltage | kV | 12 | |
Rated insulation level | Rated short-time frequency | kV | 42 (ground and meeting) |
|
|
| 48 (isolation breaks) |
| Rated lightning impulse withstand voltage | kV | 75 (ground-to-ground and in-person) |
|
|
| 85 (isolation break) |
Main busbar rated current | A | 630, 150, 1600, 2000, 2500, 3150, 4000 | |
Branch busbar rated current | A | 630, 150, 1600, 2000, 2500, 3150, 4000 | |
Rated short-time withstand current (4S) | kA | 16, 20, 25, 31.5, 40 | |
Rated peak withstand current |
| 40, 50, 63, 80, 100 | |
protection class |
| Enclosure IP4X, compartment IP2X | |
regular service conditions
serial number | name (of a thing) | unit (of measure) | demand value | |
1 | Ambient air temperature | maximum temperature | ℃ | +40 |
minimum temperature | -25 | |||
Maximum daily temperature difference | K | 25 | ||
Average temperature of the hottest month | ℃ | 30 | ||
Maximum annual average temperature | 20 | |||
2 | height above sea level | m | ≤1000 | |
3 | degree of dirtiness |
| Class III | |
4 | humidity level | Average daily relative humidity | ℃ | ≤95 |
Monthly average relative humidity | ≤90 | |||
5 | Seismic capacity (horizontal velocity) | m/s² | 0.2g | |
6 | Due to the amplitude of the common-mode voltage induced in the auxiliary and control loops by the opening and closing operations in the main circuit | kV | ≤1.6 | |
Product characteristics
- Successfully passed a number of tests demonstrating condensation, temperature rise, mechanical operation and mechanical life, insulation, short circuit opening and closing, internal combustion arc, etc., which fully meets the different needs of different users for switchgear;
- The grounding switch adopts a quick closing mechanism with short-circuit closing capability and a mechanical latch installed on the connecting rod of the operating mechanism, which prevents pushing into the circuit breaker trolley or mistakenly entering the energized intervals when the grounding switch is in the closed state. The earth switch can also be equipped with a latching solenoid to realize the electrical interlocking between the earth switch and the non-cabinet;
- The valve drive mechanism can be retrofitted with an electrical locking device to prevent the circuit breaker trolley from being exposed to energized static contacts due to misoperation when the trolley is moved out of position to ensure personal and equipment safety;
- Priority is given to Xuji series of microcomputer protection devices to realize the perfect cooperation between the main circuit and the control circuit, and other types of protection devices can also be used to realize the intelligent operation of the switchgear;
- Switchgear can also use front-type current transformer, so that equipment maintenance, maintenance is more convenient, the current transformer can be drawn out directly from the front, the real realization of the wall and back-to-back installation, reducing the footprint; to ensure that the same specifications of the handcart can be freely interchanged, and different specifications of the handcart can not be accessed to the working position.
ordering instruction
In order to provide products and solutions with high quality and efficiency, you need to provide the following information when placing an order
Main circuit wiring diagrams, arrangement diagrams, floor plans
quadratic schematic
Model, specification and quantity of main electrical components in the switchgear cabinet
Box size
Summary table of electrical equipment with number of accessories
Technical parameters and other special requirements and instructions that distinguish them from the standard parameters of the product.
Key words:
center-mounted cabinet
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