1、 Overview PW‐12/24/36,is suitable for the rated voltage 12/24/36 kV,rated current 630A 50/60Hz power grid open circuit,load current in closed Power system overload current. This load switch can separate those broken distribution line automatically. With the latest techno logy, it has the newest electronic controller.The switch can be used by manual operation, electric operation and operation from a long distance. Electronic controller is installed in a stainless steel cabinet which is suitable for using under all kinds of climatic conditions. In addition, there are some wired and wireless modem installed in the cabinet through which it can realize the remote monitoring and control. Simple installation on column is convenient, fast, and also can re duce the construction cost.
2、The standard conditions of use operating conditions for SF6 gas load switch to adapt to: 2.1 Ambient temperature 2.1.1 Ambient air temperature: upper limit +50 ° C, lower limit of ‐40 ℃. 2.2 Elevation does not exceed 1000m;2000m;3000m; 2.3 The pressure does not exceed 700pa (equivalent to wind speed of 34m / s) 2.4 Earthquake intensity: 8 degrees 2.5 Pollution class: class III, class IV.
3 Features 3.1 SF6 gas‐insulated 3.2 Drive pipe with large diversity 3.3 Visible open / closed status 3.4 Quick operation 3.4.1 operating mechanism with spring energy to ensure a quick closing and opening operation. 3.5 Can realize remote control 3.5.1 It is equipped with electronic controller, fit for in situ operation as well as FTU interface console operation. 3.6 Rugged switch 3.6.1 The switch is made of proven durable, corrosion‐resistant materials (special used in warships 304L stainless steel plate)which ensures that there is a very long service life (30 years), and can be implement a series of operations.It has the ideal characteristics as a column equipment. 3.7 Standard 3.7.1 Each switch before leaving the factory has been filled with SF6 gas, sealed, and test accordin g to IEC60265‐1 (1988), GB3804‐1990 standard.
Specifications:
Description
JLB-12/24 SF6 load break switch is a HV electrical equipment of high reliability and maintenance-free, with rated voltage 12kV/24kV and rated frequency 50Hz, applicable for 10kV distribution line as load regulation & control as well as distribution automation system. There are two types for the product: manual and motor-driven type.
Technical Parameter
|
Item
|
Unit
|
Data
|
|
|
12kV
|
24kV
|
36kV
|
|
|
Rated Current
|
A
|
630
|
630
|
630
|
|
|
Rated Voltage
|
kV
|
12
|
24
|
26
|
|
|
Rated Insulation Level
|
1 min Power Frequency
Withstand
Voltage
|
Dry
|
42/49
|
50/65
|
70/90
|
|
| |
|
Wet
|
34
|
55
|
65
|
|
| |
|
Lightning Impulse
Withstand Voltage (Peak)
|
75/85
|
125/145
|
150/175
|
|
| |
|
Rated Frequency
|
Hz
|
50/60
|
50/60
|
50/60
|
|
|
Rated Short-circuit Closing Current (Peak)
|
kA
|
50
|
63
|
63
|
|
|
Rated Short-time Withstand Voltage (4s)
|
20
|
25
|
25
|
|
|
Rated Peak Withstand Current
|
50
|
63
|
63
|
|
|
Rated Operating Voltage (Controller)
|
V
|
AC220
|
AC220
|
AC220
|
|
|
Auxiliary Circuit Rated Voltage
|
DC24
|
DC24
|
DC24
|
|
|
Mechanical Life
|
times
|
3000
|
5000
|
5000
|
|
|
SF6 Rated Air Pressure (20°C)
|
MPa
|
≤0.71
|
≤0.71
|
≤0.71
|
|
|
SF6 Rated Annual Leak Rate
|
%
|
≤0.5
|
|
|
Operation Mode
|
|
Spring Operation (Manual/Electric)
|
