Switchgear describes a complete set of power circulation tools assembled from key devices and additional equipment according to a particular circuit plan. It is utilized to control and safeguard circuits and equipment. The framework of the switchgear is about similar, generally separated right into busbar space, breaker space, secondary control area (tool space), feeder area, each area is normally divided by steel plates.
low-voltage withdrawable switchgear
1. Comprehending of circulation box (cabinet).
GCK, GCS, MNS are low-voltage withdrawable switchgear; GGD, GDH, PGL are low-voltage repaired switchgear; XZW is a detailed circulation box; ZBW is a box-type substation; XL, GXL are low-voltage power distribution cabinets and also building and construction website boxes; JXF is an electric control box; PZ20 as well as PZ30 series are incurable lighting circulation boxes; PZ40 and also XDD( R) are electric meter dimension boxes.
2. The impact of low-voltage power distribution cupboards.
( 1) It is convenient to configure the power supply fairly.
( 2) When the line stops working, it is helpful to control the extent of the mistake and it is hassle-free to swiftly discover the mistake point and eliminate it in time.
( 3) It is convenient to set up circuit inspection and repair in items, without large-scale power interruption.
( 4) Various protection tools such as integrates to prevent short circuits as well as air switches to avoid overload can be comfortably positioned in the power distribution closet.
3. The make-up of the low-voltage power circulation cabinet.
( 1) The power circulation closet mainly includes: circuitry terminals, different buttons, defense tools (air buttons, integrates, and so on), determining equipment (voltmeter, ammeter, cycle meter, and so on), measuring tools (energetic and also reactive power) table).
( 2) There are several kinds of low-voltage power distribution cabinets, and the parts are really different. Taking the power cabinet as an example, from leading to bottom: knife button, current transformer, air switch, and also branch circuit breakers.
TControl power circulation closet.
4. The material of each figure of the power circulation cabinet model.
GGD low-voltage power circulation cupboard: G-- low-voltage power distribution cabinet; G-- fixed installation and wiring; D-- power cabinet;.
GCK low-voltage power distribution closet: G-- cabinet framework; C-- withdrawable type; K-- control center;.
GCS low-voltage power circulation cabinet: G-- confined button cupboard; C-- withdrawable kind; S-- Senyuan electrical system;.
MNS low-voltage power circulation closet is an item made in accordance with the transfer technology of Swiss ABB company.
5. The distinction between GGD, GCS, GCK, MNS power circulation cabinet.
GGD is different from the other 3 because it is a set type, while GCK, GCS, and also MNS are all drawer kind button closets. Each outlet unit of them is independent and each circuit will not affect each various other.
GCS is a new generation of drawer type button cupboard made by Senyuan Company in the mid-90s with recommendation to ABB's MNS cabinet type. The major structure resembles MNS, with the major bus bar behind. The difference from MNS is that the cabinet component makes use of a 20mm component (MNS is 25mm); the drawer adopts a press system, that makes the operation more convenient and adaptable.
The MNS closet can be operated both sides, and also a solitary cabinet can hold 36 loopholes (with 1/4 drawers) at many, while the GCS can be approximately 22. The product utilized in the MNS cupboard is aluminum-zinc layered, completely constructed structure, acid pretreatment machine no post-processing (galvanizing) is needed.
The straight busbars of MNS as well as GCS are divided from the front left drawer unit and also the front right cable television outlet area with dividings. Their vertical busbars are constructed in flame-retardant plastic useful boards to be more reliable. The difference is that GCS can only have 1/2 drawer a minimum of, MNS has 1/4 drawer, MNS cabinet has another interlacing system, and GCS just has the button itself.