Product Description
(With economy develops), the urban electric energy consumption is increased day after day especially the load density downtown rises more quickly as for this problem, some towns increase the voltage of the power grid whose distribution voltage class is improper or it is difficult to repair in their plans for construction and reform of power grids.
Our construction of urban power grid shall absorb some foreign useful experience; both the domestic and foreign technology and economy prove the scheme of 24KV is superior to that one of 12KV. This not only lies in the comparison of 24KV and 12 kV but also the power supply radius and capacity almost is once more than those of the latter. Meanwhile the former lowers the loss, unit capacity construction capital and maintenance expense avoids the overhaul and saves the investments. In Chinese cities of high load density if the extension of 12 kV is used continuously, it will be difficult to carry on. In the construction of urban grid, the scheme from 12 kV upgrade to 24 kV is the future development trend, now some provinces and cities have begun to test that scheme.
XBZ2 intelligent/XBJ2 compact box-type substation of 24 kV (20KV) has passed the type test, it is a new generation of 24KV box type substation that is developed by Tianjin Electric Drive Design Institute, Electric Control and Distribute Equipment Institute of china electrical equipment industry association together with more than 70 national enterprises based on the situation of our country, lo meet the demand of national increasing of economy development and of the state grid. Intelligent /compact box type substation of 24 kV (20KV).
overview
XBZZ intelligent/XBJ2 compact box-type substation of 24kV (20KV) (hercinafter referred to as box-typesubstation) takes the advantages of foreign box-type substations, employs the new techniques, advanced electric parts and HV/LV automated technology, it meets the requirements of the state grid automation and electric power requirements. It is formed a box or several boxes that are assembled with HV switchgear, distribution transformer, LV switchgear, electric energy metering equipment and power compensation equipment. The intelligent module is installed on its HV and LV side, to reach the requirements of automation in the distributiongrid and realize the remote control, remote sensing, remote signaling and remote regulating as well as upper computer system management. This equipment is applicable for the locations such as the urban high-rise buildings, residential houses, in dustrial and mining enterprises, municipal constructions, roads and street lamps as well as the temporary constructions.It has many advantages such as the strong completeness, short installation period, small floor area, low investment, less main-tenance, reliable operation, nice appearance, long service life, in addition, it is easy to harmonize with the surroundings.
Normal service conditions of outdoor box-type substation
a) The ambient temperature shall not exceed +40°C, and the average temperature within 24h shall not be higher than35°C. The (lowest)ambient tempera ture shoule be-10C -25°C. What;s more, the sharp change of temperature shall be taken into consideration.
b) The sunshine radiation of 1,000W/m? (Atnoon onacloudless day) shall be taken into consideration.
c) The altitude ≤ 1,000m.
d) If the ambient air is subject to the pollution of dust, smoke, corrosive gas, steam or salt mist, the pollution class shall not exceed the class III.
e) For class 1, the ice coating thickness shall not exceed 1mm; for class 10, it shall not be thicker than 10mm; and for class 20; it shall not be more than 20mm.
f) The wind speed shall not exceed 34m/s.
g) The condensation and precipitation shall be taken into consideration.
h) The inductive electromagnetic disturbance voltage range shall not be higher than 1.6kV in the sec ondary system.
Special service conditions
Note: Please negotiate with us if your product is used beyond the range of above conditions.
Mechanical parameters
Rated voltage (Ur): af HV side: 24kV af LV side: 0.4kV
Auxiliary circuit: AC110V, 220V, 380V; and DC 24V
Rated capacity of transformer: 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1,000, 1,250, 1,600k VA
Rated current (Ir) : af HV side: 400A and 630A af LV side: Max 2,500A
Rated frequency (fr) : 50Hz
Rated short-time withstand current (Ik) :
HV switchgear: 16kA 2s(4s), 20kA 2s(4s)
LV switchgear: 15kA for 315~500k VA 30kA for 630~1,600k VA
Test time: 1s
If the capacity of transformer is LOWER than 315kVA, the equipment will be exempted from the test. protection of enclosure : Not lower than IP23D
structure features
1. This design considers the territory, environment and variety of customer demands, it employs the modular structure combined with following types.
According to the HV switch connecting with the power grid: ring net type, terminal type, HV energy metering type, LV energy metering type.
According to the type of built-in transformer: oil- immersed full- seal transformer and dry- type transformer.
According to the type of HV switch: vacuum type load switch and combination unit switch gear, SF6 load switch and combination unit switch, gas-filled switchgear According to the material of box body (enclosure): metallic enclosure and non- metallic enclosure
The metallic enclosure and frame are welded with the beam channel and steel I beam, the side wall and top cover is of two-layer assembly, the outer has the hoisting pin and mounting pin, the metallic door has the good earthing line and the under frame and foundation has the connecting earthling conductor. There are doors installed on both sides of transformer. which facilitate the installation and repair of the transformer; and safe and isolating net doors to prevent person entering into electrical isolating area by mistake and guarantee the safe ty of equipment and human.
2. Good ventilation measures: the structure of box body is of two layers, the top of box is else made of heat - isolation material, which can lower the rise of indoor temperature caused by the sunshine and there is an automatic ventilator mounted at the side door of HV chamber, which can ensure transformer run safely in full load in the high temperature season.
3. The HV switchgear af HV side provided with five-prevention measures and there is an energized reliable lock with the transformer compartment to ensure the human security. can reach IP23D; It has good rain-proof performance.
4. Convenient operation and maintenance
There are some visible marks outside of the box type substation, indicating the HV compartment, through opening the compartment doors, they can be easily operated and repaired, each compartment has the automatic lighting device even the compartment of transformer is used for installing, maintaining and changing the transformer in addition LV compartm ent is of force connection and for repairing the channels.
5. Nice appearance and durability
The enclosure is made of AL-plates and color steel sandwich plates, it is given the pre- treatment and plating treatment, besides, it also can be non-motallic enclosure made of a glass fiber and special cement and with the special technology so it has the obvious advantage like the strong plasticity of appearance, corrosion resistance, heat isolation and sound isolat ion etc. The surface coating is beautiful and durable, with high cohesion and soft color sense.
key features and innovations
XBZ2 intelligent/XBJ2 compact box-type substation of 24k V20kV) has the following innovative points and advantages:
1) There are intelligent modules installed at HV and LV circuits, they can pass the operation information and control signal to the upper machinevia the field bus or intelligent controller, to realize the remote control, remote sensing, remote signaling, remote regulating and system management. It covers the serious shortage of domestic similar products in the intelligent control. The wireless MODEM employs GPRS mode to connect with the user's mobile phone, so that user can monitor the operationsituation of box-type substation anywhere, anytime.
2) It uses the solid-encapsulated insulating switch, which has the features such as the high reliability, zero discharge, zero pollution, free maintenance, small volume and light weight, etc., besides, this switch is more environmental protection and safe.
3) The innovation point rests with that the Cu-Al composite bus is used as the carrying-current conductor in the substation, which can lower the consumption of Chinese limited copper resource to the large extent.
4) It is designed with the assembled structure, with the features of strong completeness, high production efficiency, short installation period and low transportation cost.
5) It uses the nitrogen spring instcad of the traditional windproof hook, can solve such problem that the traditional windproof hook easily comes off; and this spring is very nice and takes the convenience for the operation.
6) XBJ2 compact box-type substation of 24K V, through the structure optimization of the high voltage components likethe HV load switch fuse, presents the perfect combination unit that is placed into the oil tank of transformer and immersed in the oil. LV switchgear is minimized to reduce the volume of combined substation, so its floor space is only 1/3~1/5 that of usual products. The box body of transformer can disperse the heat naturally ifit is exposed in the air, therefore, it has the good operation conditions.
What's more, it possesses the outstanding advantages like the high mechanical strength, low loss, low noise, low temperature rise, strong overload capacity, etc., its structure presents the type of Chinese character"ping"
7) One invention patent and eight utility model patents have been applied for XBZ2 intelligent/XBJ2 compact box-type substation of 24kV (20kV) Vin many innovativepoints like the control principle, structure and new type of parts, etc., and they have been accepted.
Founded in 2008, registered capital of 108 million CNY, ROOQ electric group.;ltd is a high-tech enterprise specializing in the design, manufacture, sales and service of products such as power transformers, complete sets of electrical appliances, high and low voltage components, and smart city control systems.
Since its establishment, ROOQ has always adhered to product quality first, as the guide of "customer demands". It has successively served for T2 Wenzhou Airport, Beijing Winter Olympics Ski Resort, Zhejiang National Defense Force, Hangzhou-Wenzhou Railway, Cangnan gymnasium, Country Garden Community, First People's Hospital of Songxi, Tema Road Lighting of Ghana, Presidential Palace of Burundi, Ministry of Energy of Rwanda, National Hospital of Mozambique, Refinery of CNPC in Thailand, State Television of Uzbekistan, Gold mine of Kyrgyzstan, National Data Center of Kazakhstan etc. With years of innovation and professional manufacturing experience, we have more than 20 independent intellectual property rights, and strong advantages in special product customization and EPC power engineering general contracting now. Stable quality assurance and timely delivery capabilities have won widespread trust from users around the world.
Our Advantages
1. R&D Ability
We are specialized in the field for more than 16 years, and has a well experienced R&D team taking the design
and development work for each project based on customer's special demands.
2. QC Team
We have extremely strict QC procedure from components to finished products.
3. Production Capacity
Steady production period within 15 days.
4. Assuring the quality and conformity of products
We have awarded the certification of CE,GB,IEC,ISO.
If you require other certification, we can also help you to apply it.
F A Q
1. Are you manufacturer?
Yes, we are OEM manufacturer. We have three plants to produce the electric power equipment.
(power transformer, High & Low switchgear and box substation)
2. How about the pre-sale and after-sale service?
Before order we will be discuss full products details, price details, delivery details etc.
After order we will provide technical support and agree to oversea service if you need.
4. What's your MOQ?
One set for our electric power equipment.
5. How's the delivery time needed?
Our produce time need about 15 days. The exact time are based on the order.
6. How about the quality guarantee?
Whole of our equipment will be supply one years quality guarantee.
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Product Description
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