Description
The PGS-12~40.5kV pole-mounted insulation load switch is designed to operate in power grids with rated voltages of 12~ 40.5kV. It can handle rated currents of 400A and 630A at 50/60Hz, being capable of opening and closing circuit, load, and overload currents. This switch can automatically isolate faulty distribution lines.
Equipped with the latest technology, it features a new electronic controller. It offers multiple operation modes including manual, electric, and remote operation. The electronic controller is housed in a stainless steel cabinet, enabling it to function under various climatic conditions. Wired and wireless modems are installed in the cabinet, facilitating remote monitoring and control. Its simple pole-mounted installation is convenient and fast, reducing construction costs.
- Ambient Temperature: The ambient air temperature ranges from -40°C to +50°C, and the relative humidity can reach 100%.
- Elevation: It can operate at elevations not exceeding 1000m, 2000m, or 3000m.
- Pressure: It can withstand a pressure not exceeding 700Pa (equivalent to a wind speed of 34m/s).
- Earthquake Intensity: Up to 8 degrees.
- Installation Site: The site should be free of fire, explosion hazards, chemical corrosion, and severe recurrent vibrations.
- Pollution Class: Class III or IV.
- SF6 Gas-Insulated: SF6 gas, which is non-toxic, non-flammable, and has excellent electrical insulation and arc extinction properties, is used for insulation.
- Diverse Drivepipe Options: Besides the standard ceramic drivepipe, alternatives like rubber insulators used in epoxy resin filling equipment are available.
- Visible Open/Closed Status: The color-coded main contact position indicator (Green – off; red – closed) is easily visible from the ground. It is directly linked to the main contacts of the drive shaft assembly for accurate contact state display.
- Quick Operation: The spring energy-operated mechanism enables rapid closing and opening operations (less than 100 milliseconds).
- Remote Control Capability: The electronic controller allows for both in situ and FTU interface console operation, enabling remote control.
- Rugged and Durable: Constructed from durable, corrosion-resistant 304L stainless steel plate (used in warships), it offers a long service life (30 years) and is suitable for pole-mounted applications.
- Standard Compliance: Each switch is filled with SF6 gas, sealed, and tested according to IEC60265-1 (1988) and GB3804-1990 standards before leaving the factory.
Parameters ratings
| No. |
Name |
Unit |
Data |
| Product mode |
PGS-11 |
PGS-24 |
PGS-38 |
| 1 |
Rated voltage |
kV |
11 |
24 |
38 |
| 6/10/11 |
15/17.5/20 |
33/36/38 |
| 2 |
Rated frequency |
Hz |
50/60 |
50/60 |
50/60 |
| 3 |
Rated insulation level(The filling SF6 gas 0.07Mpa / 20 ° C) |
(Lightning impulse withstand voltage) |
relatively |
kV |
75 |
125 |
185 |
| Fracture |
85 |
145 |
215 |
| Power frequency withstand voltage 1min |
relatively |
kV |
42 |
64 |
95 |
| Fracture |
50 |
79 |
110 |
| 4 |
Insulation level of zero gauge pressure. |
Power frequency withstand voltage 1min |
kV |
30 |
|
|
| RP-pressure 1min |
30 |
|
|
| The highest phase voltage 5min |
9 |
|
|
| 5 |
Rated current |
A |
630(400) |
630(400) |
630(400) |
| 6 |
Rated breaking load current (0.07Mpa / 20 ° C) |
A |
630(400) |
630(400) |
630(400) |
| 7 |
breaking current under zero gauge pressure |
A |
630(400) |
630(400) |
630(400) |
| 8 |
peak withstand current |
kA |
50 |
50 |
50 |
| 9 |
Rated short time making current |
kA |
50 |
50 |
50 |
| 11 |
rated short time withstand current |
KA/s |
20/4 |
20/4 |
20/4 |
| 12 |
rated cable charging breaking current |
A |
25 |
25 |
25 |
| 13 |
rated line charging breaking current |
A |
16 |
16 |
16 |
| 14 |
rated closed-loop breaking current |
A |
630(400) |
630(400) |
630(400) |
| 15 |
exciting current |
A |
21 |
21 |
21 |
| 16 |
rated current breaking times |
Times |
≥400 |
≥400 |
≥400 |
| 17 |
rated working pressure |
Mpa |
0.07 |
0.07 |
0.25 |
| 18 |
Per-phase main circuit resistance |
μΩ |
≤150 |
≤150 |
≤150 |
| 19 |
relative gas leakage rate |
year |
≤1% |
≤1% |
≤1% |
| 20 |
SF6 gas moisture content |
Factory transfer of value |
ppm |
≤150 |
≤150 |
≤150 |
| Switch running value |
ppm |
≤300 |
≤300 |
≤300 |
| 21 |
operation of echanical stability |
times |
6000 |
6000 |
6000 |
| 22 |
rated operating voltage and auxiliary circuits rated voltage |
V |
DC 220/ 110/48/24 |
DC 220/ 110/48/24 |
DC 220/ 110/48/24 |
| AC 220/110 |
AC 220/110 |
AC 220/110 |
| 23 |
Weight |
Type M |
kg |
115 |
125 |
135 |
| Type A |
135 |
145 |
155 |
| 24 |
institutions boxes and controller protection class |
IP44 IP54 |
| 25 |
Type of Mounting |
The lifting type (suspended)/block (horizontal) |
