LXQ II series harmonic elimination resistorDetailed product description：

The LXQ II series harmonic eliminator resistor (hereinafter referred to as the harmonic eliminator) is a nonlinear harmonic damping device installed between the neutral point Y0 of the primary winding of a 6-35kV voltage transformer (hereinafter referred to as the PT) and the ground. It plays a role in current limiting and damping, and can effectively suppress inrush current and PT ferromagnetic resonance. When the neutral point of the power grid where the 6-35kV substation is located is not grounded, the PT primary winding on the busbar will become the only metal channel for the neutral point ungrounded power grid to ground. The charging and discharging of the relative ground capacitance of the power grid will inevitably pass through the PT primary winding, causing deep saturation of its iron core. Therefore, when the grounding of the power grid disappears, a surge of several amperes will appear in the primary winding of the PT. By melting the 0.5A fuse of the PT, the harmonic eliminator can effectively limit the surge of the primary winding of the PT.

When the busbar is unloaded or there are few outgoing lines, ferromagnetic resonance overvoltage may occur, resulting in unstable phase voltage, ground indication misoperation, PT high-voltage fuse melting, and other phenomena. Choosing LXQII series anti harmonic resistors will greatly reduce the occurrence of this situation.

Preface number	project		technical indicators
			LXQII10 (6) type	LXQ (D) II10 (6) type	LXQ (D) Type II	LXQ (D) II35 type
one	The resistor passes through AC0.3mA (voltage and resistance at peak current)	U0.3mA (V. peak/√ 2)	one hundred and thirty ±30	one hundred and thirty ±30	four hundred and fifty ±50	four hundred and fifty ±50
two	The resistor passes through AC3mA (voltage and resistance at peak current)	U3mA (V. peak/√ 2)	five hundred ±100	five hundred ±100	one thousand and four hundred ±150	one thousand and four hundred ±150
		R3mA (kΩ)	＞180	＞180	＞550	＞550
three	Is the power frequency voltage at both ends of the resistor limited to 50H		no restrictions	Limit 3kV peak/√ 2 or below	no restrictions	Limit 5kV peak/√ 2 or below
four	Thermal capacity through 100mA peak current for 2 hours		1. No obvious damage 2. The change in U0.3mA before and after the heat capacity test is ≤± 5%
five	Thermal capacity through 500mA peak current for 10 minutes		1. Any obvious damage 2. The change in U0.3mA before and after the heat capacity test is ≤± 10%
make use item document	Inside and outside the house, installed near the transformer, the harmonic eliminator has a rainproof function and should not be directly exposed to sunlight and rain
	Environmental temperature -40 ℃~60 ℃
	The frequency of the AC power system is 50Hz or 60Hz
	Areas with earthquake intensity below 8 degrees

LXQ Ⅱ series harmonic elimination resistor