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Email: overseas@hyliton.com Email: overseas@hyliton.com 
Beijing Hyliton Power Technology Co.,Ltd.
Address:6th floor of Tower B, Advanced Material Building, Yongfeng Industrial Base, Haidian Dist., Beijing, 100094 China.
Contact: Ms. Sarah Wang
Tel: +86 189 0119 4516
Mobile phone: +86 10 5871 1928 ext. 1759
Fax: +86 10 5871 1938
E-mail:overseas@hyliton.com
LDZC-10/24/35 Through Core Current TransformersGeneral descriptionLDZC-10/24/35 through Core Current···
LDZC-10/24/35 Through Core Current Transformers
General description
LDZC-10/24/35 through Core Current Transformers is suitable for current measurement and protection of distribution equipments in 35kV and 10kV AC power system. It is widely used in compact fully insulated ring main unit such as Safe Ring/Safe Plus, RM6/SM6, SVS, GA/GE, FB, SS and so on because of its small volume, light weight, and convenient installment. It is very convenient that the transformer can be directly installed at connected output and input cables.
New magnetic material is taken to be the core of the current transformer, which has high magnetic permeability, low saturation induction density and good stability. Therefore, the measuring accuracy is higher and the instrument security factor is lower. Since the high quality silicon steel sheet metal processed by advanced technology is taken to be the core of the protection windings, the accuracy limit factor will be higher.
The circular ring core and secondary windings are vacuum poured by high quality epoxies resin in the fire retardant plastic casing, which has the characteristic of moisture proof, stable performance and dispensing with maintenance. The cable can cross the current transformer through its internal poles quickly and uniformly.
The current transformers can be divided several kinds according to the various current ratio, accuracy and rated loads. The specific parameters are showed in the corresponding parameter tables of every type.
Type designation
Type code
Product code
Technical data
Rated frequency： 50Hz or 60Hz；
Rated secondary current： 5A or 1A；
Rated short-time thermal current： 40kA，1s；
Rated continuous thermal current： 120%In；
Continuous power-frequency voltage 3kV , 1min；
Instrument security factor： FS≤10
Application condition
Ambient temperature： －250C-+400C，
Average temperature of day： ≤400C。
Altitude： ≤3000m
Pollution class： III
Product overview
Type code | Product code | Dimensions (mm) | Primary current（A） | Weight（kg） | Applicable cable |
LDZC-10 | LC10□100045040 | φ100×φ45×40 | 75-600 | 0.85 | 400 |
LC10□100045080 | φ100×φ45×80 | 40-600 | 2.4 | 400 | |
LC10□135045070 | φ135×φ45×70 | 20-600 | 4.2 | 400 | |
LC10□135045140 | φ135×φ45×140 | 20-600 | 9 | 400 | |
LC10□120100038100 | 120×100×100×φ38 | 20-400 | 2.4 | 150 | |
LC10□120100038120 | 120×100×120×φ38 | 20-400 | 3 | 150 | |
LC10□120100050100 | 120×100×100×φ50 | 50-1000 | 1.5 | 500 | |
LC10□120100050120 | 120×100×120×φ50 | 50-1000 | 3.4 | 500 | |
LDZC-24 | LC24□120100062120 | 120×100×120×φ62 | 50-1000 | 2.1 | 400 |
LC24□130116062080 | 130×116×80×φ62 | 50-600 | 3 | 400 | |
LDZC-35 | LC35□135075070 | φ135×φ75×70 | 50-600 | 1.8 | 400 |
LC35□135075140 | φ135×φ75×140 | 50-600 | 3.7 | 400 |
All kinds of current transformers of different specifications and parameters can be made according to the client’s demands.
Wiring diagrams:
Single winding Double windings
LDZC-10 high-precision current transformer
LC10□100045040
Product Type | Measuring CT | Protection CT | ||||
Product Code | LC10C100045040 | LC10P100045040 | ||||
Ratio | Acc. class and rated load（VA） | Acc. class and rated load（VA） | ||||
0.2S | 0.2 | 0.5 | 10P10 | 10P15 | 10P20 | |
75/1 | 1.5 | 1 | ||||
100/1 | 1.5 | 2.5 | 2.5 | 1.5 | 1 | |
150/1 | 2.5 | 3.75 | 5 | 2 | 1.5 | 1 |
200/1 | 3.75 | 5 | 7.5 | 2.5 | 2 | 1.5 |
300/1 | 5 | 7.5 | 10 | 3.75 | 2.5 | 2 |
400/1 | 7.5 | 10 | 12.5 | 5 | 3.75 | 2.5 |
500/1 | 7.5 | 12.5 | 15 | 7.5 | 5 | 3.75 |
600/1 | 10 | 12.5 | 15 | 7.5 | 5 | 3.75 |
75/5 | 2.5 | |||||
100/5 | 1.5 | 2.5 | 1.5 | |||
150/5 | 2.5 | 2.5 | 3.75 | 2 | 1.5 | 1 |
200/5 | 3.75 | 3.75 | 5 | 2.5 | 2 | 1.5 |
300/5 | 5 | 7.5 | 10 | 3.75 | 2.5 | 2 |
400/5 | 7.5 | 10 | 12.5 | 5 | 3.75 | 2.5 |
500/5 | 7.5 | 12.5 | 15 | 5 | 3.75 | 2.5 |
600/5 | 10 | 12.5 | 15 | 7.5 | 5 | 3.75 |
Outline drawing
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Download the specifications of Through Current Transformer Transformers
10kv through core CT Download.pdf
24KV through core Current Transformer download.pdf
35kV through core Current Transformer download.pdf
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