The disconnector is one of the most commonly used device in the power system. It is mainly used for isolation during the maintenance of electrical equipment or lines so as to ensure safety.
Since the disconnector is unable to disconnect load current or short circuit current, it should be used in conjunction with a circuit breaker. During power failure, the circuit breaker should be firstly switched on and then the disconnect switch. During power transmission, the disconnect switch should be switched off firstly and then the circuit breaker.
Application and Standards Compliant
1. This AC 50Hz outdoor high voltage power transmission equipment is used to disconnect or connect high voltage lines in case of no load, so as to bring convenience to line replacement and run mode change as well as to disconnect the electrical equipment to be maintained from the energized high voltage lines.
2. The product model is formulated according to JB/T8754-1998 High-Voltage Switching Device Model Compilation Method, and our product conforms to the following standards.
a. GB1985-2004 High-Voltage AC Disconnectors and Earthing Switches;
b. GB/T11022-1999 and DL/T593-2006 Common Technical Requirements of High-Voltage Switching Equipment and Control Equipment Standards;
c. DL/T486-2000 Technical Conditions for Ordering AC Disconnectors and Earthing Switches
In addition, our outdoor high voltage AC disconnector also complies with Relevant Provisions of High Voltage Disconnect Switch Ordering issued by State Grid Corporation.
Note: For the important parameters and configurations that are not explicitly defined in GB1985-2004, we refer to GB11022-2000 General Technical Conditions for High Voltage Switching Equipment.Application Environment Conditions
|Altitude||≤ 1000m (if customers need product capable of serving in places above 1000m, we can make products in line with GB311.1-1997 to meet their needs)|
|Wind speed||≤ 35m/s|
|Earthquake intensity||≤ VIII|
|Insulator contamination level|| Class 0 for ordinary type;
Class II for anti-pollution type;
If customers have special requirements on this index, please discuss with us
|The installation site should have no flammable substance, explosion hazard, chemical corrosion or severe vibration.|
Electrical Disconnect Switch | Industrial Safety Switch | High Voltage Electrical Equipment