Convenient Installation
-
Its small volume & light weight make user to install & delivery it more conveniently and easy . It can be completed wiring schemes according to user’s need, also can choose the intelligent control units to realize intelligent controlling & operation. Standard design make this product to be the best choice of users.
Simple operation
-
Each switchgear has single line diagram(SLD) & analog displayer which can display inside parts. For operation, it has interlock board to guarantee the handle direction of rotation with correct operation. In order to avoid the operation in mistake, on the door, there has operation manual to supply & guarantee the simple & safe operation.
Model
Structural Features
-
Its enclosure ,door & the upper chamber is spray processing. All cabinets have main grounding busbar which can connect near cabinet. All the metal parts, like grounding switch & interlocking parts are connected with grounding busbar. In order to ensure the continuity, between the parts which connected by screws ,the connection is used by copper braid. On the back of cabinet,there has pressure relief door to ensure the gas release from the back to avoid inner burning arc. Its upper board is fixed by screws. So it can be opened from outside to connect bus. Its upper auxiliary devices chamber can be installed with terminals and other parts. After heighten the small chamber, it can realize the relay protection. The load break switch & grounding switch adopts block type interlock. The grounding switch & door adopts coercive interlock .Following below steps ,it can realize automatic interlock: close the door, turn on the grounding switch and close the load break switch. This separately operation can avoid fault.
Safe operation of HXGN15 series switchgear
-
●Its professional structure design to guarantee its operation safety.
●The whole switchgear is divided into 5 insulation intervals.
●The interlock structure is reliable, simple and convenient.
Structure Features
-
Appearance: its enclosure is used by cold –rolled steel or aluminium zinc plate mold. It is beautiful and high anti-erosion, compact ,small volume and convenient combination.The inner has five insulation intervals. The rear side has two pressure release exits.
-
Convenient installation: it can be assembled freely & simply as different design requirements. No special need for its installation size.
-
Maintenance –free: Good sealing,SF6 insulation gas pressure complies with IEC60298 standard, safe and reliable working, maintenance free.
Design advantages
-
Pressure release :
There have two pressure release exits for bus room & cable room to ensure the pressure release under the condition of extreme to ensure person safety . -
Three position/double position:
Natural interlock switch, only in “Close “,”Earthing “ or “Interlock” 3 position -
Interlock position:
Switch is interlocked with operation structure to avoid misoperation High voltage cable room is interlocked with operation structure to avoid opening the installation door under the condition of switch non-grounding to protect person safety. -
Panel Display:
Panel analog primary circuit and clearly display that charge display can flash to display the electric parts. Five independently intervals to avoid the accident spread.
Independent interval:
The five chambers are separated individually to prevent accidental accidents from spreading
① Bus interval
② Switch interval
③ Operation mechanism interval
④ Low voltage interval
⑤Wire connection interval
Main technical parameter
No. |
Item |
Unit |
Parameter |
||||
1 |
Maximum system voltage |
kV |
12 |
15 |
24 |
40.5 |
|
1 |
Rated voltage |
kV |
7.2、11 |
13.8、15 |
17.5、20、22 |
30、33、36 |
|
2 |
Rated current |
A |
630/1250 |
||||
3 |
Rated frequency |
Hz |
50/60 |
||||
4 |
1min Power frequency withstand voltage |
Phase to phase, phase to earth |
kV |
42 |
48 |
55 |
85 |
Fracture |
kV |
48 |
55 |
65 |
95 |
||
5 |
Lightning impulse withstand voltage |
Phase to phase, phase to earth |
kV |
75 |
90 |
125/150 |
170 |
Fracture |
kV |
85 |
105 |
150/160 |
185 |
||
6 |
Short time withstand current |
Main circuit |
kA |
25/2s |
|||
Earthing circuit |
kA |
25/2s |
|||||
7 |
Rated withstand current (peak) |
kA |
63 |
50 |
|||
8 |
Rated transferring current |
A |
1300-1700 |
||||
9 |
Rated load circuit making current |
A |
630 |
||||
10 |
Rated cable(line) charging breaking current |
A |
50/10 |
||||
11 |
No load transformer breaking current |
A |
20 |
||||
12 |
Cable charge breaking current in earthing fault |
A |
100 |
80 |
|||
13 |
Rated short circuit breaking current (peak) |
kA |
20 |
||||
14 |
Rated short circuit making current (peak) |
kA |
63 |
50 |
|||
15 |
Protection level |
|
IP4X |
||||
16 |
Load break switch life |
times |
5000 |
||||
17 |
Earthing switch life |
times |
5000 |
Service Conditions
-
1. Ambient temperature:-30℃ ~ +50℃;
2. Altitude: Not exceed 2500m above sea level;
3. Ambient humidity: Daily average RH ≤ 95%;
Monthly average RH ≤ 90%
4. Water vapor pressure:Daily average RH ≤ 2.2kPa; Monthly average RH ≤ 1.8kPa;
5. Ambient environment: no fire, explosion danger, serious pollution, chemical corrosion and severe vibration place
Scheme selection
Wire-Connection requirement & size
The cable connection on the bottom through cable duct or base.
Foundation and cable trench size requirements :
The foundation shall be made of l50 × 50 × 50 angle steel or 18 channel steel ;
The width is 900 mm, and the length is determined by the combination size of the cabinet body;
The width of the cable trench shall ≥ 600mm, and the depth shall ≥800mm