The master of electrical equipment in the power distribution room is entered! The difference between

Are you talking about 35kv or 10kv? Is the low-voltage cabinet fixed or drawer-type? These models are not the same, and I will use the KYN28-12 cabinet type with 10kV inlet line, because it is the general factory 400V GGD cabinet type, which is specifically introduced.

Take Chinese People's Electrical Appliance Group products as an example.

High voltage cabinet: KYN28-12 height 2300mm, width 800mm or 1000mm, depth 1500mm (cable down) or 1660mm (up, up).

Dry-type transformer: SCB10, the overall size is determined according to the capacity.

Low-voltage cabinet: GGD height is 2200mm, width and depth can be mm capacitor cabinet according to the site situation: also GGD cabinet type, because the factory uses contactor switching capacitors, the best string reactor details You can see the official ** of Chinese People's Electric Group, which has a detailed introduction.

Our company is to do high and low voltage sets, I think the following manufacturers are good.

Gansu Tianshui Great Wall Switch Factory is very well-known, Zhenjiang Daqo, Shanghai Huajian, Xi'an Switch Factory, etc., the relative quality of the joint venture is better: Xiamen ABB, Shanghai Siemens, Zhenjiang Eaton, Shanghai GE and so on.

Supplement: Because the production of high-voltage switchgear is relatively simple, just to make a cabinet for assembly, basically the components are purchased, so there are many manufacturers, some manufacturers even the cabinet is also purchased, basically the production is almost the same, did not find that there is particularly outstanding

It is recommended that you go to China Billions Electric Appliance Network to take a look.

The choice of equipment depends on the cost performance, according to their own requirements to choose, a good ABB and ordinary ** may be more than doubled.

Xu Ji, Tianshui Great Wall Switch Factory can be.

It is best to contact the manufacturer for customization.

The difference between a common distribution room and a dedicated distribution room is:

1. In terms of authority, the special power distribution room is managed by the owner; Answer: The public distribution room is managed by the power supply bureau.

2. From the perspective of load distribution, the load supplied by the special power distribution room is the electricity used by public facilities and equipment in the community, such as fire pumps, life pumps, fans, elevators, public lighting and supporting commercial equipment; The load supplied by the public distribution room is exclusively for residents' daily electricity.

In the national standard, the definition of the power distribution station is: "there is only a high-voltage distribution device that plays the role of opening and closing and distributing electric energy, and there is no main transformer on the bus". The difference between a distribution station and a substation is that the distribution room (distribution station) does not have a transformer, whereas the substation has all transformers.

The power distribution room is the key part of the power supply system of the building, and a full-time electrician is on duty for it 24 hours a day. Non-staff members are not allowed to enter without the permission of the manager of the management office and the head of department. The attendant must be certified to work and be familiar with the status of power distribution equipment, operation methods and safety precautions.

The attendant must pay close attention to the indications of voltmeter, ammeter and power factor meter; It is strictly forbidden to overload the air switch. Always keep the floor of the distribution room and the appearance of the equipment dust-free. The operation of the reverse switch of the distribution room equipment shall be carried out by the attendant alone, and the other personnel present shall only supervise and shall not interfere; It is strictly forbidden for two people to reverse the gate at the same time to avoid mistakes.

"Public distribution rooms and dedicated distribution rooms" is also the first time I have heard such a statement. It should be "common."

version of the line and the exclusive line". The utility line is right from the switch station with multiple users at an outgoing interval, which can be a high voltage of 10kV or a low voltage of 380V through a utility transformer. The special line is from the switch station on an outgoing line interval on the line to a user, generally a 10kV high-voltage line, to the user end after the requirements to build a general distribution room.

The protection of photovoltaic power stations is different according to the different voltage levels and the voltage levels of the step-up transformers, and the protection configurations used are also different.

But basic protection has.

There must be three protections: line protection, bus differential protection and transformer protection.

The rest of the protection depends on the actual needs of your substation design!

Power distribution room management 1. Principles Maintain the normal, safe and excellent operation of the power system, and provide safe and reliable electricity for residents. 2. Operation 1. There must be more than 2 people to operate during operation, one of whom is to supervise and issue orders. 2. Power outage should be carried out in strict accordance with the power outage operation procedures, and any power outage must be approved by the management office and notify the user in advance.

3. When the brake is operated, it should be carried out as far as possible at the minimum load, and it is strictly forbidden to carry out the operation when the load is the largest. 4. If there is an emergency, you can first operate in the report to the supervisor and management office. 3. Safety management regulations 1. Operators must be certified to work and strictly implement the "electrician safety regulations".

2. When the operator enters the substation and distribution room to work, he should wear electrician shoes and work clothes, and he must wear insulating gloves when operating, and strictly implement the safety operation system. 3. When entering and exiting the low-voltage substation and distribution room, close the door casually, and do not bring food into the substation and distribution room to prevent the introduction of small animals and unnecessary electrical accidents. 5. Non-staff are not allowed to enter, and they must be approved by the department manager and signed before they can be led into by the staff on duty.

6. Conduct inspections every two hours, make records, deal with faults in a timely manner and make written records, and report to relevant departments at the same time. 7. Inspect the route according to the regulations to prevent the phenomenon of missing inspections. During the inspection, it is necessary to pay close attention to the changes in the readings of various instruments, so as to grasp and understand the electricity consumption and the changes in electricity.

Analyze the working status of equipment and lines. 8. Carry out lights-out inspections at least once a week, and deal with leakage and flashover in a timely manner. 9. The substation and distribution room must be equipped with fire-fighting appliances.

The staff should master the use of firefighting appliances and understand the basic knowledge of fire extinguishing.

The necessary tools and equipment in the power distribution room In the high and low voltage power distribution room, safety has always been the most important thing for people, and it is also a tight string that everyone must always be tight.

In the power distribution room, it is essential to be equipped with the necessary safety operation tools and take preventive measures. Therefore, the high-voltage distribution room must have the tools to:

Rat-stop rats often crawl on the distribution transformer of the power and telecommunications room of the substation, which poses a great threat to the safe operation of the power system. The main ways of harm: gnawing on the cable insulation material, or sneaking into the transformer, causing a short circuit or even causing a fire; When approaching the high-voltage line, due to the strong magnetic field induction, the electrical equipment will break down and burn.

Therefore, the rat guard plays a key role in the power distribution room.

The electroscope is used to detect the potential difference or charge of the electrostatic instrument, which is the focus of the safe operation in the power distribution room.

Insulating rubber board Insulating rubber board has the functions of shockproof, anti-slip and anti-collision aesthetics, and is widely used in substations, power plants, power distribution rooms, laboratory mates and field live operations.

Signs are hung at the door of the distribution room and in a conspicuous place inside; Non-staff members are not allowed to enter; No smoking; Beware of electric shocks; and other warning slogans.

The insulated carpet in the distribution panel in the power distribution room must be arranged in front of the insulated carpet of equal width and greater than 1 meter and not less than 5mm thick, which is used to isolate static electricity, and the circuit current brought by the staff walking back and forth to avoid the harm caused to the human body.

Insulated gloves and insulated boots are tools to facilitate the operation of operators, protect the safety of operators and personnel entering the power distribution room, and avoid unnecessary electric shock accidents.

In the carbon dioxide fire extinguisher distribution room, due to line failure or some other factors, a short circuit occurs. This must be taken into account when equipping the electrical distribution room with tools and equipment. Therefore, the installation of fire extinguishers in the distribution room is a top priority.

Among them, carbon dioxide fire extinguishers are the first choice, followed by dry powder fire extinguishers, and foam fire extinguishers are prohibited.

Safety tool cabinets use a large number of insulating tools (including live work tools, safety tools, etc.) in the power system for operation, however, due to climate and other reasons, insulating tools are very susceptible to moisture, and the insulation performance of insulating tools after moisture declines, serious color and the life safety of maintenance personnel.

The power distribution room is not calculated according to watts, watts are power, is the electric energy used, if you want to calculate how much electrical energy is used in the distribution room, you can only calculate how many electrical appliances in it. Generally, it is calculated according to the voltage, and the normal voltage of the power distribution room is 380V. said.

The power distribution capacity of the community is the transformer capacity configured after comprehensive calculation according to the living area of the community or the number of residents and other public facilities of the community (elevators, pressurized pumps, fire pumps, public lighting) during construction. The unit of capacity of a transformer is called kilovolt-amperes. Watts give us a unit noun for the magnitude of the power of an electrical device.

High-voltage lines, of course. As for whether the actual voltage is 380V or higher, you have to measure it with a meter.

With such a thick line, it must be high-pressure.

Dust can cause short circuits in electrical appliances, especially when the air humidity is high.

Power transformers. For details, see 05D1 Basic Text Symbols for Electrical Equipment (4).

1. TM is a power transformer.

2. A power transformer is a kind of static electrical equipment, which is used to change a certain value of AC voltage (current) into another or several voltages (currents) with different values of the same frequency.

3. The transformer is a static electrical equipment used to convert AC voltage and current and transmit AC electric energy. It is based on the principle of electromagnetic induction to achieve the transfer of electrical energy. Transformer can be divided into power transformer, test transformer, instrument transformer and special-purpose transformer according to its use

Power transformer is a necessary equipment for power transmission and distribution, power user distribution; Test transformer equipment for withstand voltage (boost) test of electrical equipment; Instrument transformer is used for electrical measurement and relay protection of the distribution system (PT, CT); Special-purpose transformers include furnace transformers for smelting, electric welding transformers, rectifier transformers for electrolysis, small voltage regulating transformers, etc.

It is an emergency power supply cabinet, which generally provides power supply for community monitoring and emergency lighting.

UPS emergency power supply, or EPS emergency power supply.

Hello. It's UPS. Power supply to the control cabinet PLC system.

This battery is used to automatically send power when tripping.