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Thiết bị OBV1-B

Ngày đăng: 29/12/2014 .


OBV1-B
Tên: Thiết bị OBV1-B
PictureCẤU TẠO & N L HOẠT ĐÔNG 

Gồm các biến trở oxít kim loại ( MOV) là thành phần chính của bộ phận cắt sét. Các lớp ( MOV) này ở điều kiện bình thường 

điện trở rất lớn không cho dòng điện chạy qua. Khi xuất hiện sóng đa hài bậc cao ( xung sét ) kết cấu ion bị phá vỡ nối tắt

dẫn dòng sét xuống hệ thống tiếp địa và giải phóng năng lượng.


ƯU ĐIỂM

* Kiểu bảo vệ IT, TN-S, TN-C & TN-C-S, khả năng tản xung sét (10 - 60)KA

* Điện áp hoạt động Uc~140V đến 550v

* Có tính thẩm mỹ cao tăng thêm tính mỹ quan cho công trình.

* Thích hợp với mọi môi trường.

* Lắp đặt và bảo dưỡng đơn giản.

* Hiệu quả kinh tế cao.

XUẤT XỨ

Thiết bị cắt sét OBV1-B là sản phẩm của hãng Cuajeđược sản xuất từ China


THÔNG SỐ KỸ THUẬT OBV1-B
 
Surge Protection OBV1-B80 In40KA Imax80KA
Product Description
OBV1-B80 series surge protection device (for short: SPD, alias: surge protector, surge arrester) is suitable for TN-S, TN-C-S, TT, IT etc. power supply system of AC 50/60Hz, <440V, which protects the electric network not shocked by the thunder or surge over-voltage. It’s designed according to IEC61643.1, GB18802.1.
 Product Features
1.SPD as a port, defend electric shock, installation indoor, limiting voltage type.
2.Inside a failure release mounted on the module of surge protection device, when the SPD fails in breakdown  for   overheat, it’ll separate from the power system and give the indication signal. When the SPD is normal, the visible windows displays in green, and it’ll display in red when it bad.
3.Use high quality MOV, large discharge capacity.
 Model and Meaning
 Application Scope and Installation Position
OBV1-B80 series surge protection device is suitable for B grade lightning protection, installed on the joint of LPZOA zone or LPZOB and LPZ1 zone, which protects the electric network not shocked by the thunder or surge over voltage. OBV1-B80 was usually installed in low voltage main distribution box connected to the incoming end of the buildings.
Notice: When you order our goods, please write the model and quantity carefully. For example: OBV1-B80/4P-385, 8 pieces.
 Main Technical Parameters
  Surge Protection Device OBV1-B80
Max. Continuous Operating Voltage Uc (V~) 320V 385V 420v
Voltage Protection Level Up (V~) kV ≤2.0kV / 2.2kV /2.4kV / 2.6KV
Nominal Discharge Current In (8/20μs) kA 40kA
Max. Discharge Current Imax (8/20μs) kA 80kA
Response Time ns <25ns
Test Standard IEC61643.1, GB18802.1
The Cross Section of L/N Line (mm2) 25-35 mm2
The Cross Section of PE Line (mm2) 25-35 mm2
Fuse or Switch (A) 32A
Operating Environment (centidegree) -40~+85
Relative Humidity (25 centidegree)) <95%
Installation Standard Rail 35mm
Material of Outer Covering Fiberglass PC
 Dimension
 
The installation position and application of OBV1-B
1. Installed on the joint of LPZ1 or LPZ2 and LPZ3.
2. Applied in household distribution boards, computer equipment, information equipment, electronic equipment and in the socket box in front of control equipment or near the control equipment.
The installation position and application of OBV1-B
1.C grade lightning current SPD protection, used for electric connection when being shocked.
2.Installed on the joint of LPZOB or LPZ1 and LPZ2.
3.Generally it’s installed in the floor distribution board, computer center, telcommunication room, elevator control room, cable TV room, floor automatic control room, guard supervising room, fire protection center, industrial automatic control room, frequency conversion equipment control room, hospital operating room, supervising room and the distribution board with electronical medical equipment, also can be installed in the whole distribution board under the six floors household. To the individual building, the SPD should be installed in the distribution board of every household.
The main structure and operating principle
In three- phase four- line system, three phase lines and one zero line are connected protective device to the earth cable. (figure 1 ) . In normal situation, the protective device is high resistance, when the over voltage brings for electric network shocked by thunder or other reasons, the protective device will rapidly transmit in ns , then lead the voltage into earth and protect the electric equipment. As the surge voltage through the protective device and after disappear it will recover to high resistance and not influence the normal operating. Figure 2 is the electric principle about it.
Installation:
It adopts 35 mm DIN rail
It is linked by 2.5 -- 35 mm; copper wire , and there are 2 wiring methods:
1. From power switch to protective device , then from protective device again to the load end . This way suits to the distribution case which load current is under 100 A . The wire section should be selected by the load current . ( Figure 3 )
2.From the power switch to protective device , also from the power switch to load end . This way suits to the distribution case which load current is over 100 A . The wire section should not be selected by the load current , but it can’t be longer than 500 mm.(Figure 4 )
The earth cable should choose the double color wire which is over 4 mm; but not longer than 500 mm .In order to guarantee electrical network’s normal operating after protective device losing efficiency , the protective device which linked to the phase line must be connected a 32A fuse box
Adjustment, operation, maintenance
1.There’s no need to adjust the protector after installation.
2. The protector can automatically protect the electric net should it’s installed rightly.
3. When operating, check whether the modular scutcheon is red, at the same time check whether the indication red light is lighting, then can change the malfunction device.