Switchgear describes a full set of power circulation gadgets assembled from primary devices as well as secondary equipment according to a specific circuit plan. It is made use of to control and safeguard circuits and devices. The structure of the switchgear is about comparable, mostly separated right into busbar room, breaker area, second control room (instrument space), feeder space, each area is typically separated by steel plates.
low-voltage withdrawable switchgear
1. Understanding of circulation box (cupboard).
GCK, GCS, MNS are low-voltage withdrawable switchgear; GGD, GDH, PGL are low-voltage repaired switchgear; XZW is an extensive distribution box; ZBW is a box-type substation; XL, GXL are low-voltage power distribution cabinets as pickling line steel process well as construction site boxes; JXF is an electric control box; PZ20 as well as PZ30 collection are incurable illumination distribution boxes; PZ40 as well as XDD( R) are electrical meter measurement boxes.
2. The effect of low-voltage power circulation cupboards.
( 1) It is convenient to configure the power supply fairly.
( 2) When the line stops working, it is advantageous to regulate the extent of the mistake and also it is practical to quickly find the mistake point and eliminate it in time.
( 3) It is hassle-free to set up circuit maintenance in pieces, without large power interruption.
( 4) Various defense gadgets such as fuses to avoid brief circuits and also air switches to prevent overload can be comfortably placed in the power circulation cabinet.
3. The composition of the low-voltage power distribution closet.
( 1) The power circulation closet mainly consists of: wiring terminals, different switches, security devices (air switches, fuses, etc.), measuring tools (voltmeter, ammeter, cycle meter, and so on), determining equipment (energetic as well as reactive power) table).
( 2) There are numerous types of low-voltage power circulation cupboards, and also the parts are extremely various. Taking the power closet as an instance, from top to bottom: knife button, present transformer, air switch, and also branch circuit breakers. If you straight manage the electrical tons, there are contactors, thermal relays, and also branch present transformers under the branch circuit breakers. Naturally, there are ammeters, voltmeters, voltage conversion changes, and also sign lights.
TControl power circulation closet.
4. The material of each digit of the power distribution cupboard model.
GGD low-voltage power circulation closet: G-- low-voltage power distribution cupboard; G-- fixed installment as well as circuitry; D-- power cabinet;.
GCK low-voltage power distribution cabinet: G-- cabinet structure; C-- withdrawable type; K-- control center;.
GCS low-voltage power distribution cupboard: G-- confined button cupboard; C-- withdrawable kind; S-- Senyuan electric system;.
MNS low-voltage power distribution cabinet is a product produced in accordance with the transfer technology of Swiss ABB company.
5. The distinction between GGD, GCS, GCK, MNS power circulation cupboard.
GGD is different from the other 3 because it is a set type, while GCK, GCS, and also MNS are all cabinet kind switch cupboards. Each outlet unit of them is independent as well as each circuit will not affect each other.
GCS is a new generation of cabinet kind button cabinet created by Senyuan Company in the mid-90s with recommendation to ABB's MNS cabinet type. The major structure is similar to MNS, with the main bus bar behind. The difference from MNS is that the cabinet module uses a 20mm module (MNS is 25mm); the drawer embraces a push mechanism, which makes the procedure easier and also adaptable.
The MNS cupboard can be operated both sides, and also a single closet can hold 36 loops (with 1/4 cabinets) at a lot of, while the GCS can be as much as 22. The product made use of in the MNS closet is aluminum-zinc plated, fully constructed structure, no post-processing (galvanizing) is needed.
The straight busbars of MNS as well as GCS are divided from the front left cabinet device as well as the front right cable outlet area with dividers. Their vertical busbars are assembled in flame-retardant plastic practical boards to be much more trusted. The difference is that GCS can just have 1/2 drawer a minimum of, MNS has 1/4 drawer, MNS cabinet has another interlacing system, and also GCS just has the switch itself.