One,Issues with LED Screens

LED screen neutral wire current is too high
2. Large noise and severe heating in LED display cables, posing fire hazard risks.
3. LED display switch trip circuit breaker

Two,Why the neutral current of an LED display is greater than the phase current

Three-phase current balanced, phase angle difference between three-phase current vectors120 degrees, three phases can cancel each other out, with zero current in the neutral wire.
LED displays are powered by switching power supplies, which generate a significant 3rd harmonic current (3rd harmonic current) on the power grid, and the 3rd harmonic current is zero sequence.HarmonyWave current, three-phase vector angles are consistent, hence3rd harmonic current superimposed onto the neutral line.
Typically, switching power supplies...The harmonic current content of 3 times is between 55% and 80%, causing some peculiar phenomena on the LED display: "Neutral line current is much larger than phase line current / Neutral line current is close to the sum of phase line currents."

Section 3: Neutral CurrentOver-sizedOur solution 

LED Screen Neutral Line Current Eliminator (HJLS-X Series) is designed for the neutral line overcurrent characteristics of LED screens, representing a new generation product with NewKing Electrical's ten years of experience in neutral line current processing and a breakthrough in foreign technology. It is an excellent solution for excessive neutral line current caused by LED screens.
Neutral Current EliminatorLED display screen phase line series connection, after 3rd harmonic current passes through the neutral current eliminator, the eliminator generates magnetic flux. Through detection and calculation, an equal magnitude and opposite direction magnetic flux is produced internally to counteract it, thereby filtering out the 3rd harmonic current and eliminating neutral current.

Four, HJLS-X Series Neutral Line Current Eliminator for Display ScreensBenefits
1. Reduce LEDMonitorTotal neutral line currentOver 90%;
2. Prevent cables and wires from overheating, reduce losses, and save up to 3% to 8% on electricity bills overall.
3. Prevent aging of the neutral wire to avoid short circuits that could lead to electrical fires.

Five MonitorHJLS-XNeutral Current EliminatorProduct Features 
HJLS-XThe Type Zero Line Current Eliminator compares with traditional solutions (zero line current interrupters) as follows:
Installation Method:

Neutral wire current interrupter connected in series with the neutral wireInterrupting the neutral wire increases the impedance of the neutral system circuit, thereby blockingNo 3rd harmonic current flows into the neutral (a product phased out by the company in 2006, not compliant with power supply requirements).

Neutral Current Eliminator in series with three-phaseABC Live Wire, Neutral Wire Static Eliminator Directly Eliminates 3rd Harmonic Current Generated by Load (Company's New Product, Meets Power Supply Requirements)

2. National Standards:Violation of National StandardsGBJ65 "Code for Design of Grounding for Industrial and Civil Power Installations" Article 9, Chapter 6, explicitly stipulates:No wiring is allowed to be connected in series with switches, fuses, resistors, and other equipment on the neutral line.

Leeter EnergyHJLS-XType）Neutral Current Eliminator meets all national standards specifications.
3. Personal Safety: Neutral Line Current InterrupterInstalledNeutral wireGround Wire HarnessVoltage, person contacts neutral wireOr earth wireElectrical shock hazardSex。
Lyt Energy（HJLS-XType）Neutral Current Eliminator No voltage on the neutral wire, person touches the neutral wireWith ground wireNo hazard.
4. Component Safety:Fault with the串联Neutral Wire product, single-phase load operating voltage due to broken Neutral WireVoltage increased from 220V to 380V, resulting in high voltage burnout of most loads。

Leeter Power（HJLS-XType）Neutral current eliminator damaged.Overload Breaker with Automatic Trip ProtectionSwitch to emergency bypass power supply.
5. Electrical Short Circuit: The neutral line current interrupter increases the neutral line impedance significantly.Power supply system ifA short circuit occurred, resulting in a reduced short circuit current and an extended leakage time.May lead toOverload switch failure causing electrical fire.
Litet Power（HJLS-XType）Neutral Current Eliminator does not alter the neutral impedance,Power supply system ifA short circuit occurred, but the superior switch operates normally and trips for protection, posing no danger.
6. Elimination Effect: Neutral Current InterrupterLowerNeutral currentPlease provide the Chinese content to be translated.80%Left and right。
Litet Power（HJLS-XType）Neutral Current Eliminator Zero-Sequence Current Rejection RateGreater than90Above %;

Guaranteed: No charge for non-compliance, free returns.

Six,Technical Data

The technical data listed in this table is for standard specifications. For any special requirements, please contact us.

Section 7:Connection Method：

Ms. Yan 13537661970