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LMZK Series Electrical Low Voltage Zero Sequence Current Transformers For Indoor Usage

 
The Model LZCK2500-10 zero phase ct is a ring-type resin-casting split core current transformer. Some clients also called it TTCC. This model can be used both for measurement and microcomputer protection of electrical equipment in 11KV and 35KV AC power systems of ring network switchgear 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 good linear and more than 20 years of using life to be qualified for all the jobs. The semicircular ring core and secondary windings are vacuum poured by insulated resin. All of our current transformers are strictly comply IEC60044-1, IEC 61869-2, NTC 2205, GB1208-2006, GB20840.2-2013, ANSI/IEEE C57.13.
 
 
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Support Dual Ratio;

Size:φ120xφ185x100;

High precision 0.5S or 0.5;

Using life more than 20 years;

Measurement range 0-2000A AC;

Easily install, with mounting bracket;

High magnetic conductivity silicon steel material;

Holding wire diameter: φ120mm, 140mm, 160mm;

Secondary windings are vacuum poured by insulated resin;

IEC60044-1; IEC 61869-2; ANSI C57.13; NTC 2205; GB1208-2006;


Standards

IEC60044-1; IEC 61869-2; NTC 2205; ANSI/IEEE C57.13; GB1206-2006;

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 withstands voltage

3kV, 1min

Instrument security factor

FS≤10

Insulation Class

E

Material

polyurethane +Silicon steel sheets+Enameled wire+ABS

Dimensions (W×D×H) (mm)

φ120xφ185x100

Jaw cable diameter(mm)

120, 140, 160

Weight (kg)

7, 8, 9

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.


1. Altitude: Should not exceed 3500m

2. Ambient temperature: -5ºC ~ +40ºC

3. Air relative humidity: ≤85%

4. Air relative site: Indoor.


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