LZCK2500-10 high accuracy 33KV split core zero phase current transformer

split core zero phase current transformer

The model LZCK2500-10 zero phase ct is a ring type resin casting split core current transformer. Some clients also called it as TTCC. This model can be used both for measurement and microcomputer protection of electrical equipment in 11KV and 35KV AC power system of ring network switchgears such as ABB-Safe Ring/Safe Plus... and cable distribution boxes.
We used imported silicon material and using our mature advanced producing technology we make sure our transformer has very goog linear and more than 20 years using life in order to be qualified with all the jobs. The semicircular ring core and secondary windings are vacuum poured by insulated resin. All of our zero phase current transformers are strictly comply IEC60044-1, IEC 61869-2, NTC 2205, GB1208-2006, GB20840.2-2013, ANSI/IEEE C57.13.

 

Outline drawing

Split core cast resin current transformer

Wiring diagrams

Split core cast resin current transformer

P1, P2 is primary polarity terminal, S1, S2 is secondary polarity terminal.
P2, S2 is homonymous terminals (subtractive polarity).

Features

  • Support dual ratio;
  • Size: φ120xφ185x100;
  • High precision 0.5S or 0.5;
  • Using life more than 20 years;
  • Measurement range 0-2000A AC;
  • Secondary current output 1A or 5A;
  • Easily installation, with mounting bracket;
  • Holding wire diameter: φ120mm, 140mm, 160mm;
  • High magnetic conductivity silicon steel material;
  • Secondary windings are vacuum poured by insulated resin;
  • IEC60044-1; IEC 61869-2; ANSI C57.13; NTC 2205; GB1208-2006; GB20840.2-2013;

APPLIATIONS

  • Power meter;
  • Energy meter;
  • MV switchgears;
  • Air switch cabinet;
  • Distribution boxes;
  • Power quality meter;
  • Ring network cabinet;
  • Measuring instrument;
  • Current load monitoring;
  • Protective relay device;
  • Low voltage metering system;
  • Distribution power transformer monitor system;
 

Parameters

Technical parameters 
Standards IEC60044-1; IEC 61869-2; NTC 2205; ANSI/IEEE C57.13; GB1206-2006;
Class 0.5, 1, 3, 10P10, 10P5, 10P20
Rated primary current 50-2000A
Rated load ≤25VA
Rated frequency 50Hz or 60Hz
Rated secondary current 5A or 1A
Rated short-time thermal current 40kA, 1S
Rated continuous thermal current 120%I1n
Secondary winding power-frequency voltage 3kV, 1min
Instrument security factor FS≤10
Insulation Class A
Material Polyurethane+silicon steel sheets+enameled wire+ABS
Mechanical parameters 
Dimensions (W×D×H)(mm) φ120xφ185x100
Jaw cable diameter (mm) 120, 140, 160
Weight (kg) 7, 8, 9
Operating conditions
Operating temperature -40°C to +70°C
Daily average temp <+40°C
Storage temperature -40°C to +70°C
Altitude <3500 meters
Condition No existence of severely begrimed, erosive and radioactive gas in the air. Permission of long-term operation under rated current.

Selection guide

Type LZCK2500-10 LZCK2500-10 LZCK2500-10
Purpose Measuring current transformer Protection current transformer Double winding current transformer
Ratio Accuracy class and rated load (VA) Accuracy class and rated load (VA) Composite accuracy class and rated load (VA)
I1/I2 0.5 1 3 10P15 10P10 10P5 0.5 1 10P10 10P5
100/1 2 2.5 5 2 2.5 5 2 2.5 1.5 2
200/1 2 2.5 5 3 5 7.5 2.5 2.5 2 2
300/1 2.5 3.75 5 3 5 7.5 3.75 3.75 2.5 2.5
400/1 2.5 5 10 3 5 10 5 5 2.5 2.5
500/1 2.5 5 10 3.75 6.25 10 5 5 2.5 2.5
600/1 5 7.5 10 5 7.5 10 5 5 5 5
750/1 5 7.5 10 5 5 5 5
800/1 5 10 15 5 5 5 5
1000/1 5 10 15 5 5 5 5
50/5 2.5 2
75/5 2.5 2.5
100/5 2.5 2.5 2.5 2.5
200/5 2.5 5 2.5 5 2.5
300/5 5 5 5 2.5 5 7.5 5 5 2 2.5
400/5 5 5 5 2.5 5 7.5 5 7.5 2.5 5
500/5 5 7.5 10 5 7.5 10 5 7.5 2.5 5
600/5 5 7.5 10 5 7.5 10 5 10 2.5 5
750/5 7.5 10 15 5 10 10 7.5 10 2.5 5
800/5 7.5 10 15 5 10 10 7.5 15 2.5 5
1000/5 10 15 20 10 10 10 10 15 2.5 5
1200/5 10 15 20 10 10 10 10 15 2.5 5
1500/5 10 15 20 10 10 10 10 15 2.5 5
1600/5 20 25 30 10 10 10 10 15 2.5 5
2000/5 20 25 30 10 10 10 10 15 2.5 5

Selection guide

 Model Primary rated current Rated load Aperture (mm) Description (mm) Weight (kg)
LZCK310-10 300-1000A ≤10VA φ50 φ50xφ110x32 1
LZCK322-10 300-1000A ≤10VA φ50 φ50xφ110x52 1.6
LZCK350-10 300-1000A ≤25VA φ50 φ50xφ110x105 3.1
LZCK720-10 300-1000A ≤25VA φ80 φ80xφ110x50 2.1
LZCK2500-10 30-3000A ≤30VA φ120, 140, 160 φ120xφ185x100 7
LZCG530-10 30-1000A ≤20VA φ45 φ45xφ120x65 2.1
LZCG930-10 30-1500A ≤25VA φ60 φ60xφ155x60 3.6
LZCG930-10 30-1500A ≤25VA φ60 φ60xφ155x60 3.6
LZCT722-10 30-1500A ≤10VA φ82 φ82xφ130x55 2.3
LZCG2500-10 30-3000A ≤30VA φ120, 140, 160 φ120xφ185x100 7

Ordering information

Be sure to the type, current ratio, accuracy class, rated load and use of the products when you plan to make a order. Special specifications could be customized. All kinds of different specifications and parameters current transformers can be made according to your needs.

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