High-voltage Switch
ZHW5-126 type gas-insulated metal-enclosed switchgear (HGIS) is my company developed a GIS and AIS between compact multifunctional outdoor high voltage switchgear, the overall use of modular design. Through a flexible combination of these modules to meet the needs of different substation design, not only saves space and simplifies design substations.
ZHW5-126 type gas-insulated metal-enclosed switchgear standard module components include: sulfur hexafluoride circuit breaker (with a spring mechanism), three-position isolating and earthing switches (with electric actuator), with closing capability fast earthing switch (with electric spring mechanism), into the bushing, current transformer, HSBC cabinet. The design of these standard components, production, assembly and testing of the combination can be done in the production plant. These combinations assembled standard elements transported to the site, as long as a simple installation, you can safely run.
| Description | Unit | Parameter | ||
| Rated voltage | kV | 126 | 145 | |
| Rated power frequency withstand voltage( Phase to earth, phase to phase /acrossing insulating gap ) 1 min | kV | 230/230+73 | 275/315 | |
| Rated lightening impulse withstand voltage ( Phase to earth, phase to phase/acrossing insulating gap/ ) | kV | 550/550+103 | 650/750 | |
| Frequency | Hz | 50 | ||
| Rated current | A | 2000/2500/3150 | ||
| Rated short circuit withstand current | kA | 40 | ||
| Rated short circuit current | kA | 100 | ||
| Rated SF6 gas pressure | MPa | 0.6 | ||
| Circuit breaker | ||||
| Rated short circuit breaking current | kA | 40 | ||
| Rated short circuit withstand current | kA | 40 | ||
| Rated short circuit withstand time | S | 4 | ||
| Rated short circuit making current (peak) | kA | 100 | ||
| Rated opening time | ms | 25±3 | ||
| Rated closing time | ms | 90±15 | ||
| Rated break time | ms | ≤60 | ||
| Rated operating sequence | O-0.3s-CO-180s-CO或CO-15s-CO | |||
| Mechanical endurance | Time | 10000 | ||
| Disconnecting switch | ||||
| Bus transfer current switching capability | A/V | 1600/100 | ||
| Mechanical endurance | Time | 10000 | ||
| High speed earthing swith | ||||
| Rated electromagnetic inductive current / voltage | Electromagnetic Inductive voltage | kV | 6 | |
| Electromagnetic Inductive current | kA | 100 | ||
| Rated electrostatic inductive current / voltage | Electrostatic inductive voltage | kV | 6 | |
| Electrostatic inductive current | kA | 5 | ||
| Mechanical Endurance | Time | 10000 | ||
Product Advantage
Quick and easy installation: simplified support structure, small civil engineering work, a device control cabinets and sinks with plug-in cable, quick and easy installation.
Easy maintenance: backup products can replace whole interval bit defective product, single spacing out of operation for maintenance, does not affect the operation of the whole substation, but also single-phase exit maintenance.
Light weight, environmental protection: the total weight of each interval is only about two tons, easy to transport compared with the GIS equipment, the device uses less SF6 gas, reducing SF6 gas emissions, there is conducive to the operation of environmental protection and product maintenance
Factory-installed, stable quality: Each interval is an independent entity, the equipment in the use of the site after a simple installation can be tested and used. The installation process without dismantling and assembly equipment parts, quality is more stable and reliable.
Adaptability: This series of products using mixed gas installation plus tropical manner or meet product running at low temperature environment.
Product Name: ZHW5-126 Gas Insulated Metal-Enclosed Switchgear
