Close
 
Product NameBY10 Series
Usage and application scope
       Usage and application scope of BY10 type surge protective device (short name "SPD") is suitable for AC 50/60 Hz,380V and the following electric power systems,such as TT, IT, TN-S, TN-C, TN-C-S. It protects the electric network shocked by the thunder or over voltage.
Working condition
1.Height: not more than 2000m.
2.Operating temperature : normal -5~+40?C Enlarge range: -40~+80?C.
3.Relative humidity: on condition that room temperature 30%~90%.
4.Installed at no notability shocked and virated place.
5.Dont be contained in explosion medium,the medium such as air and dust (including conduction dust ) shouldnt come to the degree that can corrode metal or damage insulation.
 
Model and meaning
 
Tripping device
      Theres tripping device designed on the modular of the protector. When the protector is over heat or shocked, the tripping device can automatically separate it from the electric net, at the same time showing the indication signal. Its green when the protector is normal, red when tripping.
Remote signaling contact
      The products can be produced available with the accessory of remote signaling contact. If one or more of modular of the protector is in malfuction, the contact will be closed, and sending the malfunction signal.
Principal parameters
Maximum continuous operating voltage : Uc 75 150 275 320 385 440 660V~
Test grade:II
Voltage protect level: Up< 350 550 1000 1250 1500 1750 2500V
Maximum discharge current : (8/20S) Imax 40kA
Nominal discharge currrent: (8/20S) In 10 15 20kA
Remote communication terminal parameter
Type of remote communication terminal
Active
Terminal normal power
UN/IN
AC: 250V/0.5A DC: 250V/0.1A, 125V/0.2A, 75V/0.5A
Conductor section
BY10-40/4-150
Maximum single line: 1.5mm2
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 sh-ocked 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.
Technical Parameters
Item
75
150
275
320
440
600
Maximum continuous operating voltage
Uc
75V~110V~
50V~200V~
275V~350V~
20V~420V~
440V~585V~
600V~1600V~
Nominal discharge currrent:
In
10
15
20
15
15
15
Maximum discharge current
Imax
40
40
40
40
40
40
Voltage protect level Up
5kA
350V
550V
1kV
1250V
1750V
2.5kV
In
450V
750V
1.5kV
1750V
2250V
3kV
Response time ns
25ns
Max. fuse intensity
125AgL/Gg
100AgL/Gg
Short circuit current intensity
50kA/50Hz
25kA/50Hz
Operating temperature area
40˚C ~+ 80˚C
Conductor section
Min 1.5mm2 sibgle lead, max. 35mm multi-twisting lead/35mm single laed
Installation frame
35mm rail
Out case
red hot shrink material
Protection class
IP20
Dimension
one stnadard module width
Installation
1. It is installed by standard 35 mm rail.
2. The earth cable should choose the double color wire 4mm2 whose length is not longer than 500 mm.
3. To avoid the influence to the electric net after the protector is in malfuction, the protector connected to L line should be in series connect with a fuse. The appearance and installation dimension refer to the Fig. 3.
Adjustment, operation, maintenance
1. Theres no need to adjust the protector after installation.
2. The protector can automatically protect the electric net should its 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