Switchgear refers to a total set of continuous pickling line steel power distribution tools assembled from primary devices and second tools according to a particular circuit plan. It is made use of to control and shield circuits and also devices. The structure of the switchgear is about comparable, mainly divided right into busbar room, circuit breaker space, secondary control space (tool space), feeder space, each space is generally divided by steel plates.
low-voltage withdrawable switchgear
1. Comprehending of circulation box (cupboard).
GCK, GCS, MNS are low-voltage withdrawable switchgear; GGD, GDH, PGL are low-voltage dealt with switchgear; XZW is a comprehensive circulation box; ZBW is a box-type substation; XL, GXL are low-voltage power circulation cabinets and also building website boxes; JXF is an electrical control box; PZ20 as well as PZ30 series are incurable illumination circulation boxes; PZ40 and also XDD( R) are electrical meter dimension boxes.
2. The impact of low-voltage power distribution cupboards.
( 1) It is practical to set up the power supply sensibly.
( 2) When the line fails, it is helpful to regulate the scope of the fault and it is practical to rapidly locate the fault point and also eliminate it in time.
( 3) It is hassle-free to arrange circuit maintenance in pieces, without large-scale power failure.
( 4) Various defense tools such as fuses to stop brief circuits as well as air switches to avoid overload can be easily placed in the power distribution cabinet.
3. The make-up of the low-voltage power distribution cabinet.
( 1) The power circulation closet mainly includes: wiring terminals, numerous buttons, protection equipment (air switches, fuses, etc.), gauging tools (voltmeter, ammeter, cycle meter, and so on), determining devices (active and responsive power) table).
( 2) There are many kinds of low-voltage power circulation closets, as well as the elements are extremely various. Taking the power closet as an instance, from leading to bottom: knife button, existing transformer, air button, and also branch circuit breakers.
TControl power circulation cabinet.
4. The web content of each digit of the power circulation cupboard model.
GGD low-voltage power circulation closet: G-- low-voltage power distribution cabinet; G-- fixed installment as well as electrical wiring; D-- power cabinet;.
GCK low-voltage power circulation closet: G-- closet structure; C-- withdrawable kind; K-- nerve center;.
GCS low-voltage power distribution cabinet: G-- confined switch closet; C-- withdrawable kind; S-- Senyuan electric system;.
MNS low-voltage power distribution closet is an item made in accordance with the transfer modern technology of Swiss ABB firm.
5. The distinction between GGD, GCS, GCK, MNS power circulation closet.
GGD is different from the other 3 in that it is a set type, while GCK, GCS, and also MNS are all cabinet kind button closets. Each outlet device of them is independent and also each circuit will not affect each various other.
GCS is a brand-new generation of cabinet kind switch cabinet made by Senyuan Company in the mid-90s with reference to ABB's MNS cupboard type. The major framework resembles MNS, with the major bus bar behind. The difference from MNS is that the drawer module utilizes a 20mm component (MNS is 25mm); the drawer embraces a press mechanism, which makes the operation more convenient and also adaptable.
The MNS cupboard can be operated both sides, and also a single closet can hold 36 loopholes (with 1/4 drawers) at most, while the GCS can be as much as 22. The product utilized in the MNS closet is aluminum-zinc plated, totally constructed framework, no post-processing (galvanizing) is needed.
The straight busbars of MNS and GCS are separated from the front left cabinet system and also the front right cable television electrical outlet area with dividers. Their upright busbars are set up in flame-retardant plastic functional boards to be much more dependable. The difference is that GCS can just have 1/2 drawer at the very least, MNS has 1/4 cabinet, MNS cabinet has an additional interlacing device, and GCS just has the switch itself.