| Customization: | Available |
|---|---|
| Certification: | ISO9001, CCC |
| Protection: | Explosion-Proof |
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| Technical parameter | |
| Rated voltage | 1140V, 660V |
| Rated current | 315A, 400A, 500A, 630A, 800A, 1250A, 1600A, 2000A |
| Standard frequency of the power supply of the protection box | 50Hz |
| Protection box | Long-term working system |
| Working conditions | |
| Altitude | ≤2000m |
| Ambient temperature | -5ºC~+40ºC |
| Relative humidity of the air | No more than 95% (+25%) |
| In the environment without strong vibration and shock vibration | |
| In the air containing methane and coal dust, but in the environment without gas and steam that can corrode metal and damage insulation | |
| It is installed in the flameproof cavity of flameproof feed switch | |
1. The protection and control system adopts advanced high-precision data processing and programmable controller protector with advanced protection algorithm, which has the advantages of high protection accuracy,fast response speed, high degree of inteigence, stable performance,diverse control methods and reliable action.
2. Backlit LCD display is used to display the working status, parameters and fault types of the switch. With menu-type human-computer interface,the operation is intuitive and simple. All protection function parameters can be adjusted through menu selection, with wide application range and high protection accuracy.
3. The low-voltage protection box is divided into two outgoing lines to meed the condition of multiple loads.
4. Al faults drive the high-voltage side circuit breaker to break through the signal line, thus reducing the breaking curent, overcoming the frequent breaking fault of the low-voltage side switch of the mobile substation, and overcoming the dead zone problem that the leakage from the low voltage winding of the transformer to the low-voltage protection box circuit can not break the faut point, which can be matched with all types of mobile substations.
5. Regardless of whether the switch of the low-votage protection box is in the closed or open state,the current insulation condition is monitored online to facilitate timely maintenance and adjustment of the network insulation degree.
6. It has the "memory" function, and all the protection function parameters adjusted each time are memorized and saved. The last set parameters will be automatically extracted when the next power transmission or system reset, and the protector can also remember the current fault information.
7. RS-485 communication interface is reserved for communication with upper computer.
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