What is the main application of the LXK Zero-Sequence Current Transformer?

It is designed for precise zero-sequence current detection and cable grounding protection in small grounding current systems operating at 35kV or below.

What are the available sizes for the LXK Zero-Sequence Current Transformer?

The transformer is available with inside diameters ranging from 80mm to 360mm, including options such as 100mm, 120mm, 140mm, 160mm, and 300mm, ensuring compatibility with various cable systems.

How does the open-close design simplify installation?

The transformer can be split into two halves for easy assembly around cables, which are then securely bolted together, streamlining the installation process.

What standards does the LXK Zero-Sequence Current Transformer comply with?

It complies with power system standards and is specifically designed to integrate seamlessly with relay models such as DD-11/60 for effective fault detection and system monitoring.

Can the transformer be customized for specific applications?

Yes, customizations are available for current levels, load requirements, and dimensions. Contact the technical team for tailored solutions.

LXK Zero-Sequence Current Transformer

Overview: The LXK Zero-Sequence Current Transformer is a highly efficient and reliable device designed for indoor use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 35kV or below. It plays a critical role in small grounding current systems, providing accurate cable grounding protection. Its advanced design ensures […]

Products | Detials

Overview:

The LXK Zero-Sequence Current Transformer is a highly efficient and reliable device designed for indoor use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 35kV or below. It plays a critical role in small grounding current systems, providing accurate cable grounding protection. Its advanced design ensures compatibility with relay models DD-11/60 and DD-1/60, enabling seamless integration for effective system monitoring and safety.

The LXK Zero-Sequence Current Transformer is specifically tailored, and is for environments requiring precise zero-sequence current detection, and robust performance. With its compact structure and compatibility with widely used relay systems, it offers an optimal solution for industrial applications. Designed for durability and high performance, the LXK Zero-Sequence Current Transformer is an essential component for ensuring system reliability and electrical safety.

Type Designation of LXK Zero-Sequence Current Transformer

LXK Zero Sequence Current Transformer typ

Construction Features of LXK Zero-Sequence CT

The LXK Zero-Sequence Current Transformer is constructed with an open-close design and utilizes epoxy resin insulation, ensuring durability and reliable performance. During installation, the transformer can be divided into two halves, which are then securely joined using bolts for convenient assembly. This design simplifies the installation process and enhances operational efficiency.

LXK Zero-Sequence Current Transformer is available in multiple sizes to accommodate diverse application needs, with inside diameters ranging from 80mm to 360mm, including 100mm, 120mm, 140mm, 150mm, 160mm, 180mm, 200mm, 220mm, 240mm, 260mm, and 300mm. This versatile sizing ensures suitability for a wide range of cable systems, making it an adaptable choice for modern power system protection.

Technical Data

Because the cable protects the primary main insulation, the insulation characteristics of the secondary winding are only examined. The secondary winding can withstand a power frequency test voltage of 3kV to the ground.
The sensitivity of the product shall meet the requirements listed in the table.

Type of Relay	Connecting Method of Relay Windings	Scale of Relay (mA)	Primary Zero Sequence Current (A)
DD-11/60	Series	15 × 1~30 × 1	2~5
DD-11/60	Parallel	15 × 2~30 × 2	2~5
DD-11/60	Series	15 × 1~30 × 1	3~6
DD-11/60	Parallel	15 × 2~30 × 2	3~6

Notes: If using computer to gather zero fault current and control and control and protection, you must designate the magnitude of current and load when ordering.

Overall Dimension

LXK Zero Sequence Current Transformer Overall

Model	A (Inner Diameter)	B (Outer Diameter)	C (Thickness)	D×E (Frame Dimensions)	F×G (Mounting Hole Distance)	H (Total Height)
LJK-80	85	170	63	132×122	110×100	195
LJK-100	105	190	65	132×125	110×100	208
LJK-120	125	212	65	132×127	110×100	230
LJK-120	125	215	67	132×130	110×105	230
LJK-140	145	240	65	200×133	150×100	270
LJK-150	155	255	65	200×133	150×100	270
LJK-160	165	295	67	200×155	220×115	356
LJK-180	185	295	67	200×155	220×115	356
LJK-200	205	325	69	280×155	220×115	402
LJK-220	225	345	69	280×155	220×115	438
LJK-240	240	350	80	280×167	220×130	523
LJK-260	260	405	80	280×167	220×130	523
LJK-300	305	465	80	280×167	220×130	528
LJK-360	366	509	80	280×170	220×130	565

FAQs of LXK Zero-Sequence Current Transformer

What is the main application of the LXK Zero-Sequence Current Transformer?
It is designed for precise zero-sequence current detection and cable grounding protection in small grounding current systems operating at 35kV or below.
What are the available sizes for the LXK Zero-Sequence Current Transformer?
The transformer is available with inside diameters ranging from 80mm to 360mm, including options such as 100mm, 120mm, 140mm, 160mm, and 300mm, ensuring compatibility with various cable systems.
How does the open-close design simplify installation?
The transformer can be split into two halves for easy assembly around cables, which are then securely bolted together, streamlining the installation process.
What standards does the LXK Zero-Sequence Current Transformer comply with?
It complies with power system standards and is specifically designed to integrate seamlessly with relay models such as DD-11/60 for effective fault detection and system monitoring.
Can the transformer be customized for specific applications?
Yes, customizations are available for current levels, load requirements, and dimensions. Contact the technical team for tailored solutions.