PGS-12~40.5kV Pole-Mounted Load Break Switch: A High-Performance Solution
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.
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.
Standard Conditions of Use
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.
Key Features
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
