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  • Zero Sequence Current Transformer 3

Zero Sequence Current Transformer

Model:LZCK2500-10
Brand:GFUVE
Origin:Made In China
Category:Electronics & Electricity / Electronic Instrument / Electricity Meter & Instrument
Label:ac clamp on current , AC current transform , current transformer
Price: US $120 / pc
Min. Order:3 pc
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Member Information

Detail

Product Description

Theory
Current transformers typically consist of a silicon steel ring core wound with many turns of copper wire as shown in the illustration to the right. The conductor carrying the primary current is passed through the ring. The CT's primary, therefore, consists of a single 'turn'. The primary 'winding' may be a permanent part of the current transformer, i.e. a heavy copper bar to carry current through the core. Window-type current transformers (aka zero sequence current transformers, or ZSCT) are also common, which can have circuit cables run through the middle of an opening in the core to provide a single-turn primary winding. To assist accuracy, the primary conductor should be centered in the aperture.

 
Applications
LZCK2500-10 zero sequence current transformer is suitable for current measurement and microcomputer protection of electrical equipment in 10KV and 35KV AC power system. It is widely used in compact fully insulated ring network switchgears such as ABB-Safe Ring/Safe Plus...and cable distribution boxes. The current transformer can be directly installed at the inlet andoutlet cables.The slice is imported silicon material. Thesemicircular ring core and secondary windings 
zero sequence current transformer is mainly measurement current for Protection device
 

Features
New 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.
The semicircular ring core and secondary windings are vacuum poured by high quality epoxide resin in the fire retardant plastic casing, which has the characteristic of moisture proof, stable performance and dispensing with maintenance.Small size, light weight, small footprint, fixed in the ring network switchgear cable.The cable can cross the current transformer through its internal poles quickly and uniformly.
The Cast Resin Straight-Through Current Transformer can be divided several kinds according to the various current ratio, accuracy and rated loads. The specific parameters are showed in the corresponding to each model parameter tables.
 

PARAMETERS

Technical parameters 

Standards

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

Rated primary current

100-2000A

Rated load

≤20VA

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

Mechanical parameters 

Dimensions (W×D×H) (mm)

φ120xφ185x100

Weight (kg)

7

Operating conditions 

Operating temperature

-35°C to +55°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

Purpose

Measuring current transformer

Protection current transformer

Ratio

Accuracy class and rated load(VA)

Accuracy class and rated load(VA)

I1/I2

0.5

1

3

10P15

10P10

10P5

300/5

5

5

5

2.5

5

7.5

400/5

5

5

5

2.5

5

7.5

500/5

5

7.5

7.5

5

7.5

10

600/5

5

7.5

7.5

5

7.5

10

800/5

10

10

10

5

10

15

1000/5

10

15

15

5

10

15

1200/5

15

20

20

10

15

20

1500/5

15

20

20

10

15

20

 

SELECTION GUIDE

Model

Primary rated current

Rated load

Aperture (mm)

Description (mm)

Weight (kg)

Material

Water-proof

LZCK-55

100-1500A

≤10VA

φ55

180×138×52

2

ABS+Resin

IP65

LMCK185-10

300-3000A

≤25VA

φ185

350×283×55

4.5

ABS+Resin

IP65

LZCK310-10

300-600A

≤10VA

φ50

φ50 x φ110 x 32

1

Resin

silicon case (option)

LZCK322-10

30-600A

≤10VA

φ50

φ50 x φ110 x 52

1.6

Resin

silicon case (option)

LZCK350-10

20-600A

≤25VA

φ50

φ50 x φ110 x 105

3.1

Resin

silicon case (option)

LZCK720-10

20-1000A

≤25VA

φ60

φ80 x φ110 x 50

2.1

Resin

silicon case (option)

LZCK2500-10

500-1500A

≤20VA

φ120

φ120 x φ185 x 100

7

Resin

silicon case (option)

LZCG530-10

30-600A

≤20VA

φ45

φ45 x φ120 x 65

2.1

Resin

silicon case (option)

LZCG930-10

100-1500A

≤25VA

φ60

φ60 x φ155 x 60

3.6

Resin

silicon case (option)

LZCT722-10

20-600A

≤10VA

φ82

φ82 x φ130 x 55

2.3

Resin

silicon case (option)


Product Image

Zero Sequence Current Transformer 1
Img 1
Zero Sequence Current Transformer 2
Img 2
Zero Sequence Current Transformer 3
Img 3

Send Inquiry to this Member

Beijing GFUVE Electronics Co.,Ltd

01117-8 Fortune Street No.67 Chaoyang Road, Chaoyang District, Beijing, China.

Phone:
86-10-85583577
Fax:
86-10-85781298
Contact:
Andy (Sales Manager)
Mobile:
18901232181

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