Lightning Protector

WJ-RPX-40/3N+NPE series products are suitable for power supply systems such as mobile communication base stations, microwave communication bureaus/stations, telecommunications rooms, industrial factories and mines, civil aviation, finance, securities, etc., such as various power distribution stations and power distribution rooms.

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006588662519

Product introduction

1. WJ-RPX-40/3N+NPE series products are suitable for power supply systems such as mobile communication base stations, microwave communication bureaus/stations, telecommunications rooms, industrial factories and mines, civil aviation, finance, securities, etc., such as various power distribution stations and power distribution rooms. power distribution cabinets, AC and DC power distribution panels, switch boxes and various other important equipment that are susceptible to lightning strikes.
2. This product RPX-40/3N+NPE is a three-phase parallel power supply surge protector (SPD for short). It has beautiful appearance, convenient installation and wiring, simple maintenance, and can work stably for a long time in harsh environments. SPD can effectively prevent induced overvoltage, overcurrent and other instantaneous surge voltages caused by factors such as lightning strikes or industrial noise, which may cause permanent damage or instantaneous interruption to systems or equipment.
3. This product RPX-40/3N+NPE is suitable for lightning protection areas: lightning surge protection for power lines (380V) at the junction of LPZ0 and LPZ1 zones (Class B).
4. It has functions such as work instructions and module degradation indicators, green (normal), red (failed).
5. Modular design, good sealing, easy installation and wiring.
6. Adopt temperature-controlled circuit breaker technology and built-in overcurrent protection circuit to completely avoid fire hazards.
7. With large flow rate, small leakage current and fast response time, it is especially suitable for harsh lightning environments.

Features

SPD :

SPD is used for 380V first-level lightning protection in the main power distribution system. It is installed in parallel at the power incoming end of the main distribution cabinet or distribution box of the building. It is equipped with 35mm electrical guide rails and can use the Kevin connection method. The power supply must be cut off before installation, and live operation is strictly prohibited.
Installing:

When installing, please connect according to the installation diagram. L1, L2, and L3 are live wires, N is neutral wire, and PE is ground wire. Do not connect them incorrectly. After the installation is completed, turn on the automatic circuit breaker switch and check whether the working status is normal.
Use:

During the use of the lightning protection module, the fault display window status should be regularly detected and checked. When the fault display window turns red or the remote signaling terminal outputs an alarm signal, it means that the lightning protection module is faulty and should be repaired or replaced in time.
Operation:

Suitable for indoor operation. If installed outdoors, a waterproof enclosure must be installed.
Connected:

All wiring must be firmly and reliably electrically connected. SPD connecting wire: BVR≥10mm2, grounding wire: BVR≥16mm2, the lead length should be less than 1m and the shorter, the better.
Specifications:

Lightning protection grounding should meet the requirements of lightning protection specifications. The grounding wire should be as thick and short as possible and the grounding resistance should be less than 10Ω.

Parameters

Product model	RPX-40/3N+NPE

protection level	B级

Maximum continuous operating voltage	385V
Nominal discharge current（8/20μS）In	40kA
Maximum discharge current（8/20μS）Imax	80kA

voltage protection level（In）Up	≤1.75kV
response time tA	≤25ns
Short circuit capacity	25kA/50Hz
temperature range Tu	-40℃…+80℃
Installation and wiring methods/specifications	Parallel/multi-strand wire16mm2
Mounting bracket	35mmDIN轨

Remote alarm terminal type	switching contact

Remote signaling terminal wiring specifications	maximum1.5mm2
Protection level	IP20

Power supply lightning protector

Power line SPD
Since the energy of lightning strikes is very huge, it is necessary to gradually release the energy of lightning strikes to the earth through a graded discharge method. In the direct lightning non-protective zone (LPZ0A) or at the junction of the direct lightning protection zone (LPZ0B) and the first protection zone (LPZ1), install a surge protector or voltage-limiting surge protector that has passed the Class I classification test as the first .
The first-level protection discharges the direct lightning current, or discharges the huge energy conducted when the power transmission line suffers a direct lightning strike.
Install a voltage-limiting surge protector at the junction of each zone (including LPZ1 zone) after the first protection zone as a second, third or higher level of protection.
The second-level protector is a protective device against the residual voltage of the front-level protector and the induced lightning strikes in the area. When a large amount of lightning energy is absorbed by the front-level protector, some of it is still quite large for the equipment or the third-level protector.
The energy will be transmitted and needs to be further absorbed by the second-level protector. At the same time, the transmission line passing through the first-level lightning protector will also induce electromagnetic pulse radiation from lightning strikes. When the line is long enough, the energy of induction lightning becomes large enough, requiring a second-level protector to further discharge the lightning energy.
The third-level protector protects the residual lightning energy that passes through the second-level protector. According to the withstand voltage level of the protected equipment, if two levels of lightning protection can limit the voltage to be lower than the withstand voltage level of the equipment, only two levels of protection are required; if the withstand voltage level of the equipment is low, four levels or even More levels of protection.
To choose SPD, you first need to understand some parameters and their working principles.
The 10/350μs wave is a waveform that simulates a direct lightning strike, and the waveform energy is large; the 8/20μs wave is a waveform that simulates lightning induction and lightning conduction.
The nominal discharge current In refers to the peak current flowing through the SPD and the 8/20μs current wave.
The maximum discharge current Imax is also called the maximum flow rate, which refers to the maximum discharge current that the SPD can withstand at one time using an 8/20μs current wave.
The maximum continuous withstand voltage Uc (rms) refers to the maximum effective AC voltage or DC voltage that can be continuously applied to the SPD.
The residual voltage Ur refers to the residual voltage value under the rated discharge current In.
The protection voltage Up represents the voltage characteristic parameter between the SPD limit terminals.
Its value can be selected from the list of preferred values and should be greater than the highest value of the limit voltage.
The voltage switching type SPD mainly discharges the 10/350μs current wave, and the voltage limiting type SPD mainly discharges the 8/20μs current wave.

Get in Touch

Henan Yangbo Lightning Protection Technology Co., Ltd. was established in 2006 with a registered capital of 16 million and a self-owned factory of more than 8,600 square meters. It has a strong economic foundation and superb professional technology.