Terminal management neutral line security protector

In today's power system, with the widespread application of nonlinear loads such as variable frequency equipment, LED lighting, and charging piles, excessive neutral line current has become a safety hazard that cannot be ignored. According to statistics, over 60% of electrical fires are caused by circuit problems, and neutral line overcurrent is one of the "hidden culprits". ANSNP launched by Ankerui ElectricTerminal management neutral line security protectorIt is precisely a terminal governance tool designed to solve this problem.

1、 What is excessive neutral current? What are the hazards?

In an ideal three-phase balanced system, the neutral line current should be close to zero. However, when there are a large number of harmonics (especially 3rd harmonic) or severe three-phase imbalance in the system, much higher than expected currents will flow through the neutral line, resulting in:Overheating of the circuit, aging of the insulation layer, and even catching fire; Wrong tripping of circuit breaker, affecting normal power supply; Equipment damage and shortened lifespan * *; The risk of electric shock increases and personal safety is threatened.

Functional purpose

Terminal management neutral line security protectorDetect and analyze the current in the terminal circuit, control harmonics and three-phase imbalance, and eliminate the problem of excessive N-line current caused by 3N harmonics and three-phase imbalance, thereby eliminating the electrical fire safety hazards caused by them; Intelligent voltage stabilization function, leakage detection, and temperature detection for the end distribution system;

Realize the control of N-line current in the system, while having the suppression function of harmonic current, reactive power, stray current, system current mutation, and harmonic current mutation;

System energy-saving function; Reduce system cable losses, minimize losses caused by skin effect, and achieve comprehensive energy conservation. At the same time, it can improve the service life of system components and reduce maintenance costs.

Case 1: A manufacturing enterprise in Jiangsu

On site, a large amount of 3rd harmonic was generated due to LED lighting and power regulation equipment, with a high N-line current of 480A. After installing an ANSNP100, the 3rd harmonic current decreased from 109.86A to 3.95A,Compensation rateOver 97%, the cable temperature has significantly decreased and the equipment is running stably.

On site situation: The heating tube is not in operation, with low power and current. At this time, the N-line current is about 120A; Heating tubes are frequently put into operation, operating at 35% power and with a high N-line current of around 480A.

Equipment configuration: 1 ANSNP100 wall mounted module

Governance effect:

The N-line current decreases. The 3rd and 9th harmonic currents have decreased from 109.86A and 35.66A before treatment to 3.95 and 3.3A. ANSNP's ability to compensate for the 3rd harmonic in the N-line current is 97% or above, which meets the expected treatment requirements in the early stage;

The temperature of cables and circuit breakers decreases