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ring core current transformer
ring core current transformer

LZCG930-10HIGH QUALITY POLYURETHANE RESIN CAST RING CORE CURRENT TRANSFORMER

The Model LZCG930-10 CT is a ring type resin casting current transformer. Some clients also called it as TTCC. This current transformer can be used both for measurement and microcomputer protection of electrical equipment in 11KV and 35KV AC power system, It is widely used in not only compact fully insulated ring network switchgears such as ABB-Safe Ring/Safe Plus, Unstitch, Schneider RM6, SM6, Siemens 8DJ10/8DH10, Simosec, FBX, Fluokit, Omar Garbo GA, GAE; SEL TPS(Q); VEI Unifluorc; Eaton SVS/12 ring network, but also cable distribution boxes because of its small size, light weight, operable and convenient installation. It is very convenient that the transformer can be directly installed at the inlet and outlet cables.

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DESCRIPTIONNew magnetic material is taken to be the core of the current transformer, which has high magnetic permeability, low saturation magnetization and good stability. Therefore, the measuring accuracy is higher and the instrument security factor is lower. Since the high quality silicon processed by advanced technology is taken to be the core of the protection windings, which assured the accuracy limit factor is higher.
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 ring core and secondary windings are vacuum poured by high quality polyurethane insulated resin ,which has the characteristic of moisture proof, stable performance and dispensing with maintenance.
All of our current transformers are strictly comply IEC60044-1, IEC 61869-2, NTC 2205, GB1208-2006, GB20840.2-2013, ANSI/IEEE C57.13.

APPLICATION

■ Meter tester;

■ Power Meter;

■ Energy meter;

■ MV switchgears;

■ Air switch cabinet;

■ Distribution boxes;

■ Power Quality meter;

■ Measuring instrument;

■ Ring network cabinet;

■ Current load monitoring;

■ Low voltage metering system;

■ Distribution Power transformer monitor system;

FEATURES

■ Size:φ60xφ155x60;

■ Support Dual Ratio;

■ Polyurethane resin casting;

■ Using life more than 20 years;

■ Holding wire diameter: φ60mm;

■ Measurement range 0-1000A AC;

■ High precision 0.2s,0.2%, 0.5s,0.5%;

■ Easily installation, with mounting bracket;

■ Protection class 5P20, 5P10, 10P15, 10P10, 10P5;

■ The protection level CT can accept customized design;

■ Secondary windings are vacuum poured by insulated resin;

■ IEC60044-1, IEC 61869-2, , NTC 2205, GB1208-2006, ANSI/IEEE C57.13;

■ 100/5A, 200/5A, 300/5A, 400/5A, 500/5A, 600/5A, 750/5A, 800/5A, 1000/5A;

PARAMETERS

Technical parameters
Standards IEC60044-1; IEC 61869-2; NTC 2205; ANSI/IEEE C57.13; GB1206-2006;
Accuracy Class 0.2S, 0.2, 0.5S, 0.5 (IEC61869-2 standard)
Rated primary current 30-1000A
Rated load ≤30VA
Rated frequency 50Hz or 60Hz
Rated secondary current 5A or 1A
Ratio 100/5A, 150/5A, 200/5A, 300/5A, 400/5A, 500/5A...1000/5A
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 E
Material polyurethane +Silicon steel sheets+Enameled wire+ABS
Mechanical parameters
Dimensions (W×D×H) (mm) φ60xφ155x60
Jaw cable diameter(mm) 60
Weight (kg) 3.6
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.

TECHNICAL DATA

Type LZCG930-10
Purpose Measuring current transformer
Rated primary current (AMP) Accuracy class and rated load(VA)
0.2S 0.2 0.5S 0.5
50 2.5 2.5 5 5
100 2.5 5 7.5 7.5
150 5 7.5 10 10
200 7.5 10 15 15
300 10 15 15 15
400 15 15 15 15
500 20 20 20 20
600 20 20 20 20
750 20 20 20 20
800 20 20 20 20
1000 20 20 20 20
Purpose Protection current transformer
Rated primary current (AMP) Accuracy class and rated load(VA)
5P20 5P10 10P15 10P10
30 1 1 1 1
40 1 1 1 1
50 2 2 2 2
75 2 2 2 2
100 2.5 2.5 2.5 2.5
150 2.5 2.5 2.5 2.5
200 5 5 5 5
300 5 5 5 5
400 7.5 7.5 7.5 7.5
500 7.5 10 10 10
600 7.5 10 10 15
Purpose Double winding current transformer
Rated primary current (AMP) Composite accuracy class and rated load(VA)
0.2S 0.5 10P15 10P10
100 2.5 2.5 1 1
150 2.5 3.75 2 2.5
200 5 7.5 2.5 3.75
300 7.5 10 2.5 5
400 10 12.5 3.75 5
500 15 15 3.75 5
600 15 20 3.75 7.5

SELECTION GUIDE

Model Primary rated current Rated load Aperture (mm) Description (mm) Weight (kg)
LZCK310-10 300-1000A ≤10VA φ50 φ50 x φ110 x 32 1
LZCK322-10 30-1000A ≤10VA φ50 φ50 x φ110 x 52 1.6
LZCK350-10 30-1000A ≤25VA φ50 φ50 x φ110 x 105 3.1
LZCK720-10 30-1000A ≤25VA φ80 φ80 x φ110 x 50 2.1
LZCK2500-10 30-3000A ≤30VA φ120，140，160 φ120 x φ185 x 100 7
LZCG530-10 30-1000A ≤20VA φ45 φ45 x φ120 x 65 2.1
LZCG930-10 30-1500A ≤25VA φ60 φ60 x φ155 x 60 3.6
LZCT722-10 30-1500A ≤10VA φ82 φ82 x φ130 x 55 2.3
LZCG2500-10 30-3000A ≤30VA φ120，140，160 φ120 x φ185 x 100 7

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