Electric cabinet RMU is and what the advantages and functions of electrical cabinets RMU. Tủ RMU is the device identifier integrated cutting machine, fixed type designed according to the structure metal enclosed. Application medium voltage switchgear RMU insulated by SF6 gas for the distribution system, medium voltage to 36kV 630A. Tủ RMU will enhance the ability to protect transformers, price cabinet RMU reasonable as equivalent to the traditional solution used from a long time.
1.Tủ RMU what is?
Cabinets RMU or medium voltage switchgear RMU whose English name is Ring Main Unit is the form of electrical equipment case with the connection function, and the measurement is integrated with cutting machines fixed type for transformer protection. Electric cabinet RMU is designed according to the structure metal enclosed used for power distribution system medium voltage to 36kV 630A.
Category of medium voltage switchgear RMU is completely sealed with all the cutting bearing power lies in the cabinet contains SF6 gas made from stainless steel. Thanks to this feature have created a product safe for the operator. Resistant to moisture and anti-dust mite good.
2. Composition electrical cabinet RMU
Electric cabinet RMU is connected by the cable compartment output, input cable with fuses isolation and prevent the cable out transformers load in combination with fuse protection.
Element off of it, including the cutting knife download, cutting machine, busbar, knife ground and the first tournament. The element device is put in the cabinet contains SF6 gas is made from special material, durable, safe, no rust with the environment dirt, oil and grease.
Medium voltage switchgear RMU is divided and connected with each other by separate compartments according to the regulations RMU 2 compartments, 4 drawers, 6 drawer depending on the requirements of customers with function.
Classification cabinets RMU:
Tủ RMU is divided into 2 types
+ cabinet Line extension is (Extensible)
+ Line of cabinets are not expanded (Compact)
3. Characteristics and application of electrical cabinets RMU
average lifespan of cabinets RMU: > 20 years.
Equipment stable operation in various climatic conditions different harsh (-250C ÷ +400C)
this product is manufactured according to ISO 9001:2000 and ISO 14001.
Electric cabinet RMU is now in common use for: distribution transformer Substation small; The substation, high the laid underground or installed on high. For the wind energy plants; for hotels, shopping centers, apartment buildings, convention centers, office.
The application range of cabinets RMU: the power station simple outdoor station, forwarding and distribution stations, power stations on the industrial plant and the power station, underground, used for system FRTU.
4. Advantages of cabinets RMU:
Tủ RMU are many customers selected by high reliability, easy installation with maximum cutting capacity in any environment. Technology manufacturing equipment and perfect, no leakage currents when the next point in the open state. The chamber cut is made from stainless steel material. No need regular maintenance, the chamber cut use SF6 gas to power cut sealing should minimize the leakage of air.
+ High safety:
- There are inter-active manipulation by hand to avoid errors during the operation,
- safe operation and the entire cabinet system RMU is installed absolute tightness
- The high pressure is only interfere when the junction line production line earthing totally
- Have the equipment release the pressure case of breakdown pressure
- Are the key manipulation in order to avoid the errors in the process of using operating
- equipment Installation quite easily
- Speed cutting will not depend on the speed of operation
+ maintenance:
Electric cabinet this requires less maintenance compared to the solution cutter-fuse should reduce total cost of ownership. When using the you need not worry reserve fuse to replace.
+ About protective
Compared with other types of fuses, medium voltage, shearing machine, combined with the protective relay will improve protection, selective, including:
- Coordination of protection devices, the upstream and downstream protection requirements up to 6 levels including 4 level side medium, and 2 level side voltage.
- Avoid the false manipulation with the shock through transformer
- line detection incident phase-to-phase and earth fault currents with the intensity of your baby
+ the Ability to tolerate environmental harsh climate
The substation MV/LV usually installed in places with high humidity and environmental pollution. Fuse will operate not stable in harsh environments, because there is not insulated with air and electric field, in the fuse box, can easy to cause release of power locally.
Fuse medium voltage need to be installed in a sealed environment, so when designers need to consider the installation carefully in the electrical cabinet RMU as well as a selection type fuses are suitable to avoid overheating.
Electric cabinet RMU with designed cutting machine is placed inside the chamber filled with SF6 gas, should absolutely not be affected by the environmental conditions.
The main advantages of medium voltage switchgear RMU compared to fuse traditional about the possibility of protection, the cost of resistance, the environment should electrical cabinets RMU or cabinet RMU more customers more options. If you need any more information tủ RMU what is the app as well as how to use, buy cabinet RMU quality, then please contact us for advice.
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