Switchgear refers to a full collection of power distribution devices set up from main tools and additional tools according to a certain circuit plan. It is used to regulate as well as shield circuits and equipment. The structure of the switchgear is approximately comparable, mostly divided right into busbar space, circuit breaker space, additional control room (tool area), feeder space, each space is usually separated by steel plates.
low-voltage withdrawable switchgear
1. Comprehending of distribution 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 circulation cabinets and also building and construction site boxes; JXF is an electric control box; PZ20 as well as PZ30 collection are incurable lighting circulation boxes; PZ40 and XDD( R) are electric meter dimension boxes.
2. The result of low-voltage power circulation cupboards.
( 1) It is practical to configure the power supply sensibly.
( 2) When the line fails, it is beneficial to regulate the scope of the mistake and it is convenient to swiftly find the mistake factor and also eliminate it in time.
( 3) It is convenient to arrange circuit maintenance in pieces, without large-scale power failure.
( 4) Various security tools such as merges to prevent brief circuits and also air switches to stop overload can be easily put in the power circulation closet.
3. The make-up of the low-voltage power distribution cupboard.
( 1) The power distribution cupboard primarily consists of: wiring terminals, numerous buttons, protection tools (air switches, merges, etc.), measuring devices (voltmeter, ammeter, cycle meter, and so on), gauging devices (active and responsive power) table).
( 2) There are several kinds of low-voltage power circulation cupboards, and also the components are extremely different. Taking the power cupboard as an instance, from top to bottom: blade switch, existing transformer, air switch, as well as branch circuit breakers.
TControl power circulation cupboard.
4. The material of each digit of the power distribution closet model.
GGD low-voltage power circulation cabinet: G-- low-voltage power circulation closet; G-- fixed setup as well as electrical wiring; D-- power cupboard;.
GCK low-voltage power distribution cupboard: G-- closet framework; C-- withdrawable kind; K-- control;.
GCS low-voltage power circulation closet: G-- confined button cupboard; C-- withdrawable kind; S-- Senyuan electrical system;.
MNS low-voltage power circulation cabinet is an item manufactured in accordance with the transfer innovation of Swiss ABB company.
5. The difference in between GGD, GCS, GCK, MNS power circulation cabinet.
GGD is different from the various other 3 in that it is a fixed type, while GCK, GCS, as well as MNS are all drawer kind switch cabinets. Each electrical outlet unit of them is independent as well as each circuit will not impact each various other.
GCS is a new generation of cabinet type button closet developed by Senyuan Company in the mid-90s with referral to ABB's MNS cupboard type. The main structure resembles MNS, with the major bus bar behind. The difference from MNS is that the drawer component utilizes pickling line process a 20mm component (MNS is 25mm); the cabinet embraces a press system, which makes the operation more convenient and flexible.
The MNS cupboard can be operated on both sides, and also a solitary cabinet can hold 36 loops (with 1/4 drawers) at the majority of, while the GCS can be approximately 22. The material utilized in the MNS cabinet is aluminum-zinc plated, fully set up structure, no post-processing (galvanizing) is required.
The horizontal busbars of MNS and GCS are divided from the front left drawer device and the front right cable television outlet compartment with dividings. Their vertical busbars are constructed in flame-retardant plastic practical boards to be more dependable. The distinction is that GCS can only have 1/2 cabinet a minimum of, MNS has 1/4 drawer, MNS cabinet has another interlacing device, as well as GCS just has the button itself.