MRD-L Zero-sequence CT （equiped with relay protector or signal devices）
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 1000 unit/month
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Zero Sequence Current Transformer
Product Overview
When circuit grounds, CT could senses zero-sequence grounding current. To be equiped with relay protector or signal devices, it help device components act for the purpose of protecting or monitoring circuit.
MRD-L series zero-sequence CT is a kind of cable type, using ABS engineering plastics as casing, poured by resin. With beautiful appearance, good hermeticness, high insulation, high sensitivitym, good linearity, easy installation and wide application, it is not only suitable to magnetic relay, but also to electronics and mico-computer devices. CT type is determined by the operation way of user.(Neutral ground, unground,ground by high-resistance,low resistance or arc suprression coil.)
MRD-L series zero-sequence CT core is made of ZH120-130 cold rolled silicon steel sheet imported from Japan with advantages of smooth surface, constant thickness, good conductivity, strong sensitivity to magnetizing, accuracy and stability.
Inner Diameter (select site cable and inner diameter of zero-sequence CT), See table1
Table1
0-sequence CT Spec. | Cable Section(mm2) |
φ80 | 3×50 and below |
φ100 | 3×70 3×95 |
φ120 | 3×120 3×150 3×185 |
φ140 | 2×(3×150) 3×240 3×300 |
φ160 | 2×(3×185) |
φ180 | 2×(3×240) |
φ200 | 3×(3×185) |
φ240 | 3×(3×240) 2×(3×300) 4×(3×185) |
Character
1. Maximum capacity, better limite voltage effect, more widely applicable scope, stronger tolerance , long lifespan
2. Voltage impact coefficient is 1, under the various kinds of electric voltage waveform, the voltage values are equal
3. With zinc oxide nonlinear resistors and discharge gap between the structure, make the two are complementary protected. The spark gap make the State-of-Charge of zinc oxide resistance to zero, Zinc oxide resistance nonlinear characteristics also make the spark gap action without free-wheeling in future, The spark gap no longer bear arcing tasks, and improve the service life of the product;
4. Four lines connect method, can be greatly reduce the voltage of phase, the reliability of the protection is greatly improved;
5. Valve plates and the spark gap assemble space, and mutual influence, discharge electrode is not easy to damp, be oxidated, make action value more stable and reliable.
6.Take overvoltage action techniques and fault automatically function , realize the device maintenance free, at the same time, to avoid the tedious work periodically, to solve the engineering and technical personnel to worry about the problems of the equipment safe running .
Packaging
| Selling Units: | Single item |
| Single package size: | 15X40X40 cm |
| Single gross weight: | 35.0 KG |
| Package Type: | CARTON |
1. We are willing to customize for each new product
2. Supply all the components and accessory of High Voltage Switchgear
3. Yueqing Hossin Electrical Co., Ltd. is prosperously specialized in the production of high voltage electrical products. Our leading products include vacuum circuit-breakers, sulfur hexafluoride circuit breakers, arresters, current limiting fuses, load switches, isolators, operating mechanisms, wall drive pipes, and insulators. Our products have passed through ...
Basic Information
| Product/Service (We Sell): | Arrester,drop fuse,limiting fuse,disconnector,load switch | |
| Number of Employees: | 501 - 1000 People |
- Q:Ready to do electrical engineering commissioning, but do not know the work tired? Is there any danger?
- 3, the State Grid Substation Intelligent Inspection Robot infrastructure design, installation, commissioning, operation and maintenance work;4, master the progress of debugging, coordinate and solve the problems in the debugging process;5, sorting out the relevant information required for inspection, organization of the specific project acceptance;6, complete other tasks assigned by the leadership.
- Q:Ask the expert about the design of the power system diagram, 6kV side of the electrical equipment how to supply
- 6kV equipment directly in the 6kV bus out of the lead, do not consider the capacity, it does not affect the use of 380V equipment
- Q:What are the relevant national standards for power equipment?
- The standard is very thin do not know what you want to give you some of the specific power of the main reference
- Q:The difference between electric load and power supply capacity
- There is a correlation coefficient between them, the power supply capacity = power load * demand coefficient.
- Q:No concentrator can be copied directly
- There are two types of remote meter reading devices in electric power generation: one is low voltage set, called concentrator, the other is called terminal. The concentrator role is the number of meter data, first by the carrier or 485 communication way to collect the equipment, and then through the cable (optical fiber) or wireless network (cdma/gprs) transmitted to the main station.
- Q:1, common measurement and control cabinet, what is the common measurement and control cabinet? What signals are measured? High voltage side (10kV and above) have the corresponding relay protection device, regardless of the panel or on the spot, will not be on the public measurement and control cabinet; the so-called public measurement and control cabinet is measuring what? Low voltage measurement and control? Or what, for example, thank you (power generation, power supply and distribution does not matter, can speak on the line)2, network equipment cabinet, I probably can understand, is from the equipment from various communication signals collected by the communication management unit, the output signal of Ethernet, this cabinet is the main communication management machine and switch is?3, how to locate the remote communication cabinets? What is the main role? What are the main equipment?4, why do we usually need GPS time device, what is the significance? What will happen if there is no?
- The network equipment and the remote communication cabinet are responsible for the communication between the equipment and the background in the station and the communication with the electric power department
- Q:What are the two devices in the power system
- Connect the two device circuit, called the two line. In the two line of DC is generally used for communication detection equipment, such as PABX, PDH, MUX, generally for 48V DC power supply, AC line for AC equipment use
- Q:How to strengthen the management of electric power information communication equipment
- Problems in the management of information communication equipment1 personnel structure is not reasonable. With the continuous expansion of the power grid, power information communication equipment is also increasing. But at present, there are some problems in the management of electric power communication equipment, such as the lack of professional staff and the lack of post. At the same time, due to the lack of post phenomenon, resulting in the equipment management and maintenance work in the process of increasing the workload, making the existing staff complaints, work quality and work enthusiasm can not be guaranteed. On the other hand, because the new staff less power communication professionals confidence aging trend is more and more serious, the personnel structure imbalance restricts the progress and development of electric power information and communication equipment management to a great extent.
- Q:What specific enterprises and units are used to test the power of the equipment ah
- The other really did not ~ ~ ~ ~ ~What do you mean by electrical testing equipment??? High? Low?
- Q:What is the installation equipment of the transformer on the power installation project
- Installation of drop fuseHigh and low voltage side of distribution transformer should be equipped with fuse. High voltage side fuse at the bottom of the vertical distance from the ground is not less than 4.5m, the fuse and the horizontal distance of not less than 0.5m, in order to smooth down the fuse tube is easy to operate and fuse, axis drop type fuse with the vertical line of 15% ~ 30% angle. The vertical distance to the surface of the bottom of the low voltage side fuse shall not be less than 3.5m, and the horizontal distance of each fuse shall not be less than 0.2m.
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MRD-L Zero-sequence CT （equiped with relay protector or signal devices）
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 1000 unit/month
OKorder Service Pledge
OKorder Financial Service
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