MRD-BJ Transformer Neutral Ground Resistor
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 30 unit/month
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Neutral Grounding Resistor is used to protect power transformers, power generators and other associated equipment in your power systems against 50/60 Hz faults (short circuit) and transient phenomena (lightning).
Applicable Standards
The design of the product complies with the flowing standards:
DL/780-2001 Neutral Grounding Resistor in Power Distribution
IEC726 Dry-Type Power Transformer
DL/T620-1997 Overvoltage Protection and Insulation Co-ordination of AC Electrical Equipments
IEC60-1 Experimental Technique of High Voltage
GB1208-1997 Current Transformer
IEC60529:2001 Enclosure Protection Degree (IP code)
IEEE32-1972 Technique Terms and Experiment of Neutral Grounding Device
IEC60081 Insulation Co-ordination of Transmission and Distribution Device of High Voltage.
DL/T593-1996 Common Specifications for Purchasing High Voltage
Switch Equipment.
GB50150-1991 Electrical Equipment’s Hand-over and Test Standard of
Electrical Device Installation Project.
Typical Technology Parameters
Product Model | System Voltage （kV） | Rated Current （A） | Current Flowing Time in short Time（S） | Rated Resistor Value Ω （±5%） | Insulation Withstanding Voltage kV | |
8/20μS Thunder Stroke | 1min Power Frequency | |||||
MRD-BJ-6/36.4 | 6.3 | 100 | 10 | 36.4 | 60 | 32 |
MRD-BJ-6/18.2 | 6.3 | 200 | 10 | 18.2 | 60 | 32 |
MRD-BJ-6/9.09 | 6.3 | 400 | 10 | 9.09 | 60 | 32 |
MRD-BJ-6/6.06 | 6.3 | 600 | 10 | 6.06 | 60 | 32 |
MRD-BJ-10/15.16 | 10.5 | 400 | 10 | 15.16 | 75 | 42 |
MRD-BJ-10/10.10 | 10.5 | 600 | 10 | 10.10 | 75 | 42 |
MRD-BJ-10/7.57 | 10.5 | 800 | 10 | 7.57 | 75 | 42 |
MRD-BJ-10/6.06 | 10.5 | 1000 | 10 | 6.06 | 75 | 42 |
MRD-BJ-35/20.20 | 35 | 1000 | 10 | 20.20 | 185 | 95 |
MRD-BJ-35/10.10 | 35 | 2000 | 10 | 10.10 | 185 | 95 |
- Q: What are the main interference sources of the two power system
- There are three kinds of electromagnetic interference in power system: electromagnetic interference between the primary equipment, the primary equipment and the secondary equipment, and between the two devices, and the electromagnetic interference between the two devices. According to the propagation path of electromagnetic disturbance, it can be divided into conduction coupling and radiation coupling. A line in the power system of switching operation, fault, lightning strikes, transient current and voltage and electromagnetic radiation line, enter the two loop through various coupling modes, these pathways are electromagnetic voltage transformer, capacitor voltage transformer, current transformer, coupling capacitor, high voltage bus and the two cable distribution between the capacitive and inductive coupling transmission way, also have a line to the surrounding space transient electromagnetic radiation energy, is two times the equipment or circuit receiving radiation coupling way.
- Q: Power equipment are 10KV or less, there is a business license, will be issued by the electrical installation (repair, test) power facilities license five and above qualifications, you do not need a safety production license ah? Urgently needed
- Install the network need to debug the SERC issued installation (repair, test) power facilities permit five level or above qualification this debugging can be tender, can be a one-time construction units and the tender requirements: business license qualification certificate (grade 3) safety production license, the SERC issued Denso (repair, test) power facilities permit five level or above qualification
- Q: 1, what are the fire hazards caused by electricity in the server room?2 what are the fire hazards in the server room?
- Five, fire control room and electrical fire monitoring detector set over 8 independent electricFire monitoring detector six, electrical fire monitoring system settings should affect the power supply system
- Q: I would like to set up a power engineering Co., Ltd., do not need to know what the scope of business
- Domestic thermal power, hydroelectric power generation, power transmission and power supply, energy saving, environmental protection, industrial and civil buildings, intelligent buildings and municipal engineering contracting, including consulting, design, research and development, supervision, project planning, equipment, construction, installation and technical services etc.
- 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: In order to ensure the normal operation of the power system and equipment to achieve a grounding
- 2) protection of grounding: is the electrical equipment in normal circumstances, such as metal parts, such as metal shell, structural frame and the earth to make metal connection. In order to ensure personal safety.3) security is zero: is the electrical equipment in normal circumstances without the metal part of the system and the zero line connection to avoid the risk of electric shock. For three-phase four wire system of electrical equipment, must adopt the method of security zero.
- Q: I do sales of electrical equipment, how to deal with the power supply bureau?
- I am in charge of power management and power management. To provide you with the following suggestions: both the high voltage power equipment (such as transformer, voltage or current transformers, towers, porcelain crossarm, netsuke etc.)
- Q: Is there a warranty period for power equipment?
- Therefore, every year there must be high and low voltage as well as the relevant leakage test, consistent with the standard that is to continue to use.
- Q: For example, EPS emergency power supply and so on, as well as those used in public emergencies.
- The latest electric power emergency response and emergency plan for safety protection"Emergency treatment and safe latest power accident contingency plans to protect the implementation of manual" is based on the country's electricity production safety accident emergency system master, provides all levels of power supervision departments and the major power companies, power system, power grid to cope with major public emergencies working principle, organization system and operation mechanism, for guiding the competent departments and local governments at all levels in various industries and departments effectively deal with the power of public emergencies, protect public life and property safety, has an important role to reduce disaster losses.
- Q: The relationship between primary equipment and two equipment in power system
- The electrical equipment of electric power system is divided into the primary equipment and the two equipment, and the primary equipment (also called the main equipment) is the main body of the power system
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MRD-BJ Transformer Neutral Ground Resistor
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 30 unit/month
OKorder Service Pledge
OKorder Financial Service
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