GW4-40.5 outdoor isolation switch

Description of external isolating switch
/Type outdoor AC high-voltage isolating switch
Purpose and usage conditions
/Type outdoor AC high-voltage isolating switch is hereinafter referred to as type isolating switch
br/>The switch is used Rated frequency, rated voltage and used in the power supply network of electrified railways for opening and closing circuits when the outdoor network has voltage and no load.
type isolating switch is divided into two forms: single-arm rotation operation and double-arm rotation operation at the same time.
Product usage conditions
Do not exceed ambient temperature
Ambient temperature ℃℃
Speed is not greater than/
Seismic intensity is not greater than degree
Ice thickness is not greater than< br/>Places with severe smoke, dust, flammable substance explosion hazards, chemical corrosion and severe vibration
Pollution-type products can be applied to areas with moderate salt spray chemical industry and industrial sedimentation pollution.
The main specifications and technical parameters of the product are shown in the table
Model
Item
!
!
!
!
Rated voltage
br/> Maximum operating voltage
Rated current
Rated dynamic stable current
Peak value
Thermal stable current
Effective value
Weight
Mounting mechanism
Manual mechanism electric mechanism!
Note, it is without grounding blade
It is with grounding blade
Structure and working principle of the product
Off switch body
type isolating switch is made into a single-pole form. When installed and used, it can be single-pole or bi-polar for
electrified railway use. It can also be used as a three-pole isolating switch composed of three single poles, and the poles can be Linkage is achieved with the help of a connecting rod. The length of the left and right screws at both ends of the connecting rod can be adjusted to adjust the synchronization of two or three phases. The center distance between the phases is.
Each pole of the isolation switch is composed of three parts: a base, a pillar porcelain bottle and a gate knife. The two pillar porcelain bottles are installed on the bearing seat of the base. The gate knife is installed on the top of the pillar porcelain bottle. The single-arm rotation operation mode only rotates one pillar. The porcelain bottle can realize the opening and closing of the isolating switch. The double-arm rotation operation mode is that the two pillar porcelain bottles rotate in opposite directions at the same time to realize the opening and closing of the isolation switch. The rotation of the pillar porcelain bottle can be adjusted by the stop screw.
Operating mechanism type isolating switch can be equipped with hand operating mechanism or motor operating mechanism
Hand operating mechanism has and type hand operating mechanism
Hand operating mechanism It consists of a handle and a cast iron base, which is equipped with a positioning locking device and an auxiliary switch for signaling and interlocking. The handle of the manual operating mechanism rotates at an angle of 0. The auxiliary switch has extremely normally open, normally closed and extremely normally open Normally closed two types.
type manual operating mechanism is used to operate the isolating switch body without grounding knife. The
type manual operating mechanism consists of a handle and a cast iron base. There is no positioning locking device and an auxiliary switch mechanism for signaling and interlocking. The handle rotates angle. The auxiliary switch has three types: pole, pole and pole. The
hand operating mechanism is used to operate the isolating switch body with a grounding knife. This mechanism has two handles, which operate the main switch knife and the grounding knife respectively. There is a mechanical interlock between the two.
The motor operating mechanism includes the and! type motor operating mechanism. The
type motor operating mechanism is operated by AC power supply, and the ! type motor operating mechanism is operated by DC power supply. The motor operating mechanism is composed of reduction device, motor, secondary control part and mechanism box. The output shaft can rotate or It is also equipped with auxiliary switches for signaling and interlocking. There are two types of auxiliary switches: pole and auxiliary switch.
The motor operating mechanism is mainly used to operate the main knife of the isolating switch. When the isolating switch body is equipped with a grounding knife, the grounding knife is operated by a manual operating mechanism.
Set supply
The complete supply of products includes single-pole, two-pole or three-pole isolating switch body
Manual operating mechanism or motor operating mechanism and accessories for combined installation
Operation The organization needs to provide a technical document based on the aforementioned specifications, including installation instructions and packing list.