LXK-80/100 35KV Zero-sequence Current Transformer

It is suitable for use in small grounding current systems with a rated frequency of 50/60HZ and a rated voltage of 35kV and below, in conjunction with DD - 11/60 or DD - 1/60 type relays and signal devices. It is used for residual (zero - sequence) current detection and grounding protection. At the same time, it makes the device components act to realize protection and monitoring.

Product Details

Model and meaning

Product Overview

The LXK series residual (zero - sequence) current transformers are cable - type ones. They use resin casting for insulation and are made for indoor use. This series of zero - sequence current transformers have a split - type structure, and they’re cast with epoxy resin. When installing, you can split the transformer into two halves first and then put them back together as one piece. It’s really convenient for installation. As for the specs, the inner diameters of these transformers have several choices. There are Φ80, Φ100, Φ120, Φ140, Φ150, Φ160, Φ180, Φ200, Φ40, Φ260 and Φ300. With so many inner - diameter specs, the transformers can fit different application situations well. They can meet various installation and usage needs in small grounding current systems. Especially when it comes to working with residual (zero - sequence) current detection and grounding protection, they can do a good job and help the protection and monitoring systems work effectively.

Technical Parameters

Table 1

Model	LXK-80	LXK-100	LXK-120	LXK-140	LXK-160	LXK-180	LXK-200	LXK-240	LXK-260	LXK-300
Rated current ratio	50-600/1 or 150-300/5
accuracy	5P10、5P20
capacity	1-15VA or 15VA

Table 2

Equipped with relay model	Relay Coil Connection Mode	Calibration Value of Matching Relay (mA)	Primary Zero - sequence Current (A)
DD - 11/60	Series	15×1 ~ 30×1	2-5
	Parallel	15×2 ~ 30×2
DD - 1/60	Series	15×1 ~ 30×1	3-6
	Parallel	15×2 ~ 30×2

Table 3

Model	ΦD	Φd	H	h
LXK-Φ80	160	80	175	82.5
LXK-Φ100	180	100	195	92.5
LXK -Φ120	200	120	215	102.5
LXK-Φ140	220	140	235	112.5
LXK-Φ150	230	150	245	117.5
LXK-Φ160	240	160	255	122.5
LXK-Φ180	260	180	275	127.5
LXK-Φ200	280	200	295	132.5
LXK-Φ240	320	240	315	137.5
LXK-Φ260	340	260	335	142.5
LXK-Φ300	380	300	355	147.5