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China Breaker & Protector - Page 4

Permanent Magnetic High Voltage Indoor Vacuum Circuit Breaker(ZN107-40.5)'s Photo

Permanent Magnetic High Voltage Indoor Vacuum Circuit Breaker(ZN107-40.5)

18 visits

Major Technical Data

Rated voltage: 40.5KV

Rated frequency: 50Hz

Rated current: 630A. 1250A. 1600A. 2000A.

Rated short circuit current to be turned-off: 20KA. 25KA. 31.5KA.

Mechanical lifetime of the operating device: 60, 000 times

Mechanical lifetime: 30, 000 times (Related to the lifetime of the vacuum quenching machine. )

Operating voltage for switch-on and switch-off: DC220V

Introduction

ZN107-40.5Permanent Magnetic High Voltage Indoor Vacuum Circuit Breaker is one of Permanent Magnetic Products Series developed and manufactured by Jilin Yongda Group itself, and currently it is the sole permanent magnetic circuit breaker, of which rated voltage can reach 40.5KV domestically.

Features:

1) We use permanent magnetic material in operation device instead of traditional

Device using motor, spring, gears and so forth, which is the main reason for

Achieving such a long using life

2) Our breaker is suitable for steel industry, power plant and electric transformer

Substation, especially for the frequent operation conditions

3) The product is in accordance with the standards of GB1984-89, IEC56

4) Compared with electromagnetic operation device, it can get rid of mechanical lock

Catch, save 90% parts in operation device, and achieve repairing-free result

5) Convenient, safe and reliable for operating with the function of manually switch

On/off

6) With moveable and fixed types

7) Vacuum arc-chute is optional, and meets the requirements of customers effectively

8) With the predominant ratio of performance to price

9) No explosion, no pollution, low noise, small volume, long life, repairing-free and less

Maintenance


Polymeric and Polymeric Housing Surge Arrester's Photo

Polymeric and Polymeric Housing Surge Arrester

19 visits

Classification of surge arresters:

Distribution arresters: The distribution arresters are used for the protection of equipment such as distribution transformer, switch cabinet, box type transformer, cable terminal and less-oil pole switch against damage from atmospheric over-voltage and switching over-voltage.

Station arresters: The station arresters are used for protecting A. C electrical equipment or power plant and substation against damage from the atmospheric over-voltage and the swithching over-voltage.

Transmission line arresters: The transmission line surge arresters are the major protective apparatus used for preventing transmission line from being struck by lightning.


Fuse, Fuse Holder's Photo

Fuse, Fuse Holder

18 visits

Auto Plug-in Fuse East Europe Auto Fuse

Low-tension Glass Tube Fuse Auto Fuse Links

Low-tension Maxi Glass Tube Fuse Flat Auto Fuse

Bolt In Auto Fuse Glass Fuse Holder

Plug-in Fuse Holder Appearance Lamp Holder

Automotive Lighter Maxi Auto Fuse Holder

Automotive Tool Set Fuse Puller

Micro Fuse Ceramic Tube Fuse

Mini Glass Tube Fuse Glass Tube Fuse

Neon Tube of Electricity Probe Ceramic Electric Power Fuse

Temperature Fuse Recoverable Fuse

Fuse Clip Fuse Holder

Button Cell Binding Post

Packing Cell Box


Lightning Protection Box (HY38P-80J)'s Photo

Lightning Protection Box (HY38P-80J)

16 visits

Application

Parallel-type (single-port) big through-flow 3-phase power supply lightning protection box series of products is used for level 1 or level 2 protection.

Product Features.

Multi-chip paralleling technology offers good current equalization.

Allowance of big through-flow from multi-chip paralleling and combination guarantees long service life of the lightning-arresting system.

Protection of individual chips from overheating and impact current provides very high degree of safety for the lightning-arresting system and thoroughly avoids fire disasters.

Remote signaling device realizes damage alarming and facilitates control.

SPD deterioration indication.

Equipped with lightning stroke recorder.

Lead-in end of SPD equipped with air switch for protection against over current.

Product Parameters

Model

HY38P-80J

Nominal voltage (L-N/L-L)

3-Phase 220 V or 380V

Max. Continuous working voltage Uc (L-N)

320V 385V

Nominal discharge current In

40 KA/line

Max. Dischargecurrent Imax(8/20 s)

80 KA/line

Protection mode

3+1 protection

Voltage protection level Up

2200V

Residual voltage Ur(5kA 8/20 s)

1600V

Response time ta

25ns

Working conditions

Working temperature -40-+85 C; Relative humidity 95%

External dimensions (mm)

400 x 300 x 150

Sectional area of lead-in wire (mm2)

16

Indication and function

Working indication; Deterioration indication; Remote function; Lightning strike counter.


Cut Out Fuse (PD-1)'s Photo

Cut Out Fuse (PD-1)

17 visits

Type: PD-1

Rated voltage: 12kv-12kv

Rated current: 100A/200A

Breaking current: 6300A-8000A

Impulse voltage: 110KV

Power frequency withstand voltage: 40KV

Creepage distance: 250mm


Fiberglass/Vulcanized Fiber Combination Tube's Photo

Fiberglass/Vulcanized Fiber Combination Tube

17 visits

Combination tube is made by overwrapping vulcanized fiber tube with epoxy resin saturated fiberglass filaments. The angle of filament winding is usually set at 55. Vulcanized fiber tube becomes an integral tube liner which provides gas-generating and arc-quenching characteristics. Epoxy resin saturated fiberglass provides strength and water resistance. The combination tube is usually coated with UV resistant paint in gray color.

Fiberglass/vulcanized fiber combination tube has the following advantages over fiberglass/polymeric synthetics combination tube: No-spark generating, char layer forming to prevent liner from excessive ablation, and the optimum amount of arc-quenching gas generating. The main application of fiberglass/vulcanized fiber combination tube is used in expulsion fuse tube cutout for interrupting high voltage AC circuits during power surge.


Zinc Oxide Varistor's Photo

Zinc Oxide Varistor

19 visits

Product Description:

1. Zinc oxide varistor.

2. Materials and marking.

3. Marking: VCR.

4. Electrode material: AG paste.

5. Coating material: Epoxy.

6. Lead material: Tin-plated copper wire.


Fuse's Photo

Fuse

18 visits

Glass tube fuse

Ceramic tube fuse

Medium tube fuse

Micro fuse

Plug-in sheet type fuse

Auto Glass Tube Fuses

Auto Stud Fuses

East Europe fuse

Auto Connecting-style Fuses

Fuse holder

Fuse holder(Automobile)

PTC Resettable Fuses

Thermal Fuse


LP220V-**K Series Lightning Protector for Power Supply's Photo

LP220V-**K Series Lightning Protector for Power Supply

19 visits

LP220V-**K Series Lightning Protector for Power Supply

Brief

At present the latest model of the protection of power supply L-N,L-PE,N-PE dedicated ccmodule from my company successfully into the market, is currently the highest-the ratio of price and performance lightningproof module. Other types of lightningproof module provide only common model protection, such as when lightning strikes occur ,the module may cause damage.

According to the Leidianfanghu power available to the urgent need, we developed a novel lightningproof modular for power supply, it belongs to the intellective device, and provides better protection for power supply, electromagnetic compatibility characteristics also higher. It has a delicate frames, thermal disengagement button set within,technologically-advanced, user-friendly, economical and practical, protective functions strong, broad scope of application, with independent intellectual property rights. It used to the entire protective circuit and "3+1" circuit, applies particularly to lightningproof protection for the power supply of CATV amplifier.

Principles

in the normal work situation, the lightningproof component within lightning arrester is in the high impedance state. When unexpected over-voltage, over current and thunderbolt occurs, lightningproof component will switch on rapidly, and over-voltage, over-current and thunderbolt invasion wave will be limited to the permitted extent for electricity equipment, thereby protects the power supply to run normally. The Lightning protector also has the failure instruction function: After failure the red LED is bright, indicated the Lightning Protector failed, should give the replacement.

Parameter

Model Max discharge current 8/20?s(kA)

LP220V- 5K 5

LP220V-10K 10

LP220V-15K 15

LP220V-20K 20

LP220V-30K 30

Voltage (ACV): 220,protection voltage(DCV): 660+/-20%,stop fire class: 94V-0,size (mm): 52.5*40*15,down-lead: AVR0.75, Working condition: temp.-30~70, r.h.max95(%),a.p.70~106(kPa).

Applications

the series lightning arrester module applies to switching power supply,industrial protective module control, communications, cable networks, and other fields, such as, electrical control cabinets, monitoring equipment, solar power generation equipment, wind power equipment, industrial control, instrumentation, computer peripherals.


MCB Circuit Breaker's Photo

MCB Circuit Breaker

18 visits

All kinds of MCB are avilable