Switchgear describes a full collection of power distribution tools constructed from main devices and second devices according to a certain circuit strategy. It is used to control as well as shield circuits as well as devices. The structure of the switchgear is about comparable, mainly divided into busbar space, circuit breaker area, secondary control room (tool area), feeder room, each space is usually separated by steel plates.
low-voltage withdrawable switchgear
1. Understanding of distribution box (closet).
GCK, GCS, MNS are low-voltage withdrawable switchgear; GGD, GDH, PGL are low-voltage dealt with switchgear; XZW is a thorough circulation box; ZBW is a box-type substation; XL, GXL are low-voltage power distribution closets and also construction website boxes; JXF is an electrical control box; PZ20 as well as PZ30 series are incurable illumination distribution boxes; PZ40 and XDD( R) are electric meter dimension boxes.
2. The result of low-voltage power circulation closets.
( 1) It is convenient to set up the power supply sensibly.
( 2) When the line stops working, it is beneficial to control the range of the fault and it is convenient to quickly discover the mistake factor and also eliminate it in time.
( 3) It is hassle-free to set up circuit inspection and repair in pieces, without large-scale power interruption.
( 4) Various defense devices such as integrates to avoid short circuits and also air buttons to prevent overload can be easily put in the power distribution cupboard.
3. The structure of the low-voltage power circulation cabinet.
( 1) The power distribution cabinet generally includes: wiring terminals, numerous switches, security tools (air buttons, integrates, etc.), measuring equipment (voltmeter, ammeter, cycle meter, and so on), measuring tools (energetic as well as reactive power) table).
( 2) There are lots of kinds of low-voltage power circulation closets, and also the components are really various. Taking the power closet as an example, from top to bottom: knife button, existing transformer, air switch, as well as branch breaker. If you straight control the electric lots, there are contactors, thermal relays, and also branch current transformers under the branch breaker. Obviously, there are ammeters, voltmeters, voltage conversion changes, as well as indicator lights.
TControl power distribution cabinet.
4. The web content of each number of the power distribution cabinet version.
GGD low-voltage power circulation cupboard: G-- low-voltage power circulation cabinet; G-- fixed setup and electrical wiring; D-- power closet;.
GCK low-voltage power distribution cupboard: G-- closet framework; C-- withdrawable type; K-- control center;.
GCS low-voltage power circulation cupboard: G-- confined button closet; C-- withdrawable type; S-- Senyuan electrical system;.
MNS low-voltage power distribution cabinet is a product produced in accordance with the transfer modern technology of Swiss ABB company.
5. The difference in between GGD, GCS, GCK, MNS power circulation closet.
GGD is different from the other three in that it is a set type, while GCK, GCS, as well as MNS are all drawer type switch closets. Each outlet device of them is independent and each circuit will not impact each other.
GCS is a brand-new generation of cabinet kind switch cupboard designed by Senyuan Company in the best pretreatment machine mid-90s with reference to ABB's MNS cupboard type. The major framework resembles MNS, with the primary bus bar behind. The distinction from MNS is that the cabinet component uses a 20mm component (MNS is 25mm); the cabinet adopts a push device, that makes the operation easier and also flexible.
The MNS closet can be operated both sides, as well as a single cabinet can hold 36 loops (with 1/4 cabinets) at many, while the GCS can be as much as 22. The material utilized in the MNS closet is aluminum-zinc plated, fully constructed structure, no post-processing (galvanizing) is required.
The straight busbars of MNS as well as GCS are divided from the front left drawer device as well as the front right cord outlet area with dividers. Their upright busbars are put together in flame-retardant plastic functional boards to be much more trustworthy. The difference is that GCS can just have 1/2 drawer a minimum of, MNS has 1/4 drawer, MNS drawer has one more interlacing system, as well as GCS only has the button itself.