33kv/72.5kv/145kv Outdoor Three Phases Middle Break Disconnector
| Price: |
US $ 3000/Piece |
| Min Order: |
1/Piece |
| Pay Type: |
L/C,T/T,D/P |
| Prod Model: |
GW4 |
| Type: |
High-voltage |
| Structure: |
Double-column Disconnector |
| Installation: |
Outdoor High-voltage |
| Operation: |
Electric |
| Grounding: |
Single Ground |
| Series: |
Single-Stage |
| Run: |
Turn the Horizontal |
| Switching Mode: |
Single Throw-in |
| Certification: |
ISO |
| Brand: |
Hemg |
Product Description
1. General1.1 ModelGW4-145/1250, 2000 outdoor high voltage disconnector1.2 FunctionType GW4-145 disconnector is used to switch for the high-voltage line under off-load circumstance, as well as electric isolation between electric equipment as high voltage busbar, circuit breaker being maintained. It provides visible insulation distance in accordance with safety requirement. 1.3 Operation mechanism and modelEach disconnector equips one CJ6B motor drive mechanism or CS17 manual mechanism. For single earthing switch, it should be equipped one CS17 manual mechanism and for double earthing switch, it should be equipped two CS17.1.4 The products are widely applied to 145kV substation depends on its simple structure, convenient installation and reliable running.2. Environment requirement2.1 Environment temperature: -25ºC~+40ºC;2.2 Altitude:
≤4500m.2.3 Wind pressure: ≤700Pa.2.4 Thickness of covered ice:
≤10mm.2.5 Creepage distance of insulator: 2.5cm/KV, 3.1cm/KV2.6 No frequent sharp shock or harmful materials such as flammable, explosive, and chemical corrosion around the installation site.3. Technical data3.1 Main technical data Data Model
Item | GW4-145 | Remark |
| Rated voltage (kV) | 145 | |
| Rated current (A) | | 1250 | 2000 | |
Rated short-time withstand
current of disconnector (kA) | | 31.5 | 40 | 3s |
Rated peak value withstand
current of disconnector (kA) | | 80 | 100 | |
Rated short-time withstand
current of earthing switch (kA) | | 31.5 | 40 | 3s |
Rated peak value withstand
current of earthing switch (kA) | | 80 | 100 | |
| Rated insulation level | Power frequency withstand voltage (1min, kV) (Effective value) | To earth | 275 | |
| To break | 315 | |
Lightning impulse
withstand voltage (kV) (1.2/50μs, peak value) | To earth | 650 | |
| To break | 750 | |
| Rated mechanical load of connection terminal (N) | | 750 | 750 | |
| *Resistance of main switch circuit (μΩ) | | ≤140 | ≤95 | |
| **Resistance of earthing switch circuit (μΩ) | | ≤300 | ≤300 | |
3.2 Main technical parameterTable 2| Model | Checked points | Size | Requirement of three poles close on the same time |
| GW4-145 | Distance between disconnector breaks | ≥1550 | ≤15mm |
| Distance between earthing switch breaks | ≥1320 | ≤15mm |
4. CategoryThe product can be categorized into three types:Without earthing, single earthing (left earthing or right earthing) and double earthingStructure and operation principal:GW4 series disconnectors are characterized by horizontal rotary, making and breaking, two-pole; it mainly consists of supporting base, rotary insulator, conducting components and operation mechanism. The insulators on the both ends of each pole are fitted on the bearing support of supporting base; inside the bearing support is rolling bearing, which is flexible and light to be operated. There are fixed and moving contacts and in-and-out outlets. The operation mechanism will turn one insulator an angle of 90°, another insulator of same phase will be reversely driven by cross linking rod at an angle of 90°, thus the disconnector will open or close towards one direction, the linking rod on each pole of the other two ones will make or break after its linkage. An interlocking device is equipped between the main switch and earthing switch to guarantee only one of both switches can make or break when another one acts effectively. According to customers, the manual mechanism can be affiliated with electromagnetic lock to realize the interlocking among the main switch, earthing switch and breaker; therefore, thus preventing the incorrect operation from occurring, meanwhile, motor drive mechanism also can be used together with this switch.. Major features:1. The supporting and revolving plate of porcelain insulator adopts the precise casting technique to take place of the usual welding technique, improving the ability of corrosion-resistance, strength and shape. 2. The base frame and bearing support: the base frame, made of shape steel, is connected with bearing support by assembling method; the surface of base frame adopts hot galvanizing technique to improve the corrosion resistance. Excellent sealing performance of bearing support with superior lubrication oil filled inside it, with which it can maintain flexility for the long time when it turns, and even will not be blocked due to rust. 5. Terminal block adopts flexible connection instead of previous roller movement, thus, improve reliability of the whole switch. 7. Adopt the connection of lathe dog between main switch and mechanism, they are easily operated and not in need of welding on site.
Ningbo Hyuan Power Industry Co., Ltd was found in 2006, It is a professional company which is involved in Complete supply, Designing, Consulate and Service of Substation up to 245kv and of Distribution Automation up to 245kv
Our product is including of:
1.15KV/27KV/38KV, 50Hz/60Hz, 630A/1250A The Most advanced Recloser in the world for Pole mounted and Substation Mounted with Protocol IEC61850/DNP3.0 according to IEEE/ANSI/IEC standard;
2.15KV/27KV/33KV/66KV/123KV/145KV/150KV/170KV/245KV, 50Hz/60Hz, 1250A/2000A/3150A, Three phase Outdoor Isolator/Disconnector with Double Break at side /Central Single Break for Level/Vertical Mounted on Pad Substation or Power Tower;
3.15KV/27KV/33KV/66KV/123KV/145KV/150KV/170KV/245KV, 50Hz/60Hz, 1250A/2000A/3150A, Outdoor Three phase /Single phase SF6/Vacuum Circuit Breaker with Three Phase Common Operation /Single Phase Seperate Operation;
4.15KV/27KV/38KV/66KV/123KV/145KV/150KV/245KV, 50Hz/60Hz, MR2000/1(5)A, Outdoor Oil/Resin/Capacitor Current transformer, Voltage Transformer up to 5 cores;
5.15KV/27KV/38KV/66KV/123KV/145KV/150KV/245KV, 50Hz/60Hz, 100kvar to 100Mvar capacitor bank for pad mounted and Pole mounted;
6.15KV/27KV/38KV/66KV/123KV/145KV/150KV/245KV, 50Hz/60Hz Power Transformer up to 200mva and reactor up to 200Mvar;
7.400V/6KV/15KV/27KV/38KV, 50Hz. 60Hz, indoor AC control and Protection switchgear panel for substation and Distribution system;
8.48VDC/110VDC/220VDC 50Hz/60Hz Lead-Acid/Ni-CD Battery bank with Charger up to 2000AH;
9.15KV/27KV/38KV/66KV/123KV/145KV/150KV/245KV, 50Hz/60Hz Cable heat srink/cold shrink Terminal and Joint with joint box
10.33KV/66KV/145KV 50Hz/60Hz dead tank GCB /HGIS and compact GIS;
11.11KV/33KV, 50Hz/60Hz, 9/11/17/32 steps ON LOAD TAP CHANGER for Power Ttansformer
12. RTU remote terminal unit for VCB, SWITCHGEAR AND RECLOSER WITH IEC61850/DNP3.0 Protocol
Our Mian service is including of:
1. Designing, Complete Supply, Conssate and Commission of 33KV/66KV/145KV/245KV 60Hz/50Hz substation including of GCB, DS, CT PT, LA, Transformer, Cable, Control & Protection Panel, Earthing Grounding system,
SCADA system, Steel grid tower;
2. Desinging, Complete Supply, consulate and Commission of 33kv/66kv/145kv/230kv 60Hz/50Hz Distribution automatic system including of recloser, sectionaliser, fault indicator, RTU, GPRS, and management software
We are rich experience in substation and automatic distribution system for 10years, our business had been involve in the world I including of Bangladesh, Indonesia, malasia, Pakistan, zimbia, zembewei, Peru, Ecuador ect over the world.
Customerizer will be welcome, Speciall required wil be welcome, we have good experience to proposal you and support you to success in business.
All the goods from HEMG will be guaranteed within 2 years, in specially, it will be 5 years.
For Above 1 million Order, We will send our engineer to work in site untill runing in good conditions.
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