The Working Principle and Classification of Surge Protector

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Company Name Shanghai Chenzhu Instrument Co., Ltd.
Membership Free member
Registration Date2021.06.04
Country/RegionChina
CityShanghai
Contact Danping Li(Ms.)

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Product Attributes

- Place of Origin China
- Supply Type OEM Service
- Condition New
- Related Keywords The Working Principle

Description by Manufacturer

Ⅰ. The surge protection device working principle

Surge protection device is an indispensable device in lightning protection of electronic equipment. In the past, it was often called "lighting protector" or "over-voltage protector", abbreviated as SPD. The function of surge protection device is to limit the instantaneous over-voltage of the power line and signal transmission line to the voltage range that the equipment or system can withstand, or to drain the powerful lightning into the ground to protect the equipment or system from being damaged by impact.

The type and structure of surge protection device by CHENZHU , a reliable company specializing in safety and automation system vary for different purposes, but it should contain at least one nonlinear voltage limiting element.

Ⅱ. Types of surge protection device

Surge protection device is classified according to its working principle:

1. The working principle of switch type AC or DC surge protection device is that it appears as high impedance when there is no instantaneous over-voltage, but once it responds to lightning instantaneous over-voltage, it suddenly changes to low impedance and allows lightning current to pass through.

2. The working principle of voltage-limiting surge protection device is that it has high resistance when there is no instantaneous over-voltage, but its impedance decreases with the increase of surge current and voltage, and its current-voltage characteristics are strongly nonlinear.

3. Shunt type or choke type surge protection device is the third type SPD surge protection device. Shunt type has parallel connection with the protected equipment, showing low impedance for lightning pulses and high impedance for normal operating frequency. The choke type is in series with the protected equipment, showing high impedance for lightning pulses and low impedance for normal operating frequency.

The categories of surge protection device by use are:

1. Power protection device: AC power surge protection device , DC power protection device, switch type power protection device and so on.

2. Signal surge protection device: low frequency signal protection device, high frequency signal protection device, antenna surge protector and so on.

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Price US$ 100 / Piece

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The Working Principle and Classification of Surge Protector

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Company Profile

About Shanghai Chenzhu Instrument Co., Ltd.

Membership Free member
Registration Date2021.06.04
Country/RegionChina
CityShanghai
Contact Danping Li(Ms.)

SHANGHAI CHENZHU INSTRUMENT CO., LTD was established in 2002, which originated from Shanghai automation instrument institute, has grown as a leading brand providing high quality protective product for your important asset in both Process Automation and Factory Automation industry, specialized in isolated barriers, signal isolators, Surge Protective Devices and safety relays etc. integrating research and development, manufacturing and sales, providing OEM/ODM service and self-brand product. 2013, we launched the first One million pcs product and announced 5 years guarantee. Actually, we have 4 certifications which were the first one in instrumentation industry domestic China, such as IECEx Certificate, Europe ATEX Certificate by DNV, SIL from TUV Rheinland, and Japan TIIS Ex-proof Certificate. CHENZHU's factory has 2 SMT production line, over 4.5 million pcs products were sold from 2002 till end of 2019.

Selling Categories

- Measurement & Analysis Instruments >> Electrical Instruments

Keywords

signal surge protection device , signal spd , dc power surge protector

Registration Date	2021/06/04(Year/Month/Date)
Buyer / Seller in EC21	Seller
Business Type	Manufacturer
Year established	2002
Employees total	501 - 1000
Annual revenue	USD 500,001 - 1,000,000

Contact Information Order Credit Report

Company	Shanghai Chenzhu Instrument Co., Ltd.
Address	8F, Bldg.6, No. 201, Minyi Road, Songjiang Dis, Shanghai, ChinaShanghaiShanghai201612China
Phone	86 - 021 - 64513350
Homepage	http://www.chenzhuisolator.com
Contact	Danping Li

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