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Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd.
Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd. an exclusive current transformer, split core current transformer, current clamp & voltage transformer manufacturer.
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Epoxy Resin Cast Zero Sequence Current Transformer Split Core Type High Voltage

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Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd.
City: Beijing
Province/State: Beijing
Country/Region: China

Epoxy Resin Cast Zero Sequence Current Transformer Split Core Type High Voltage

Brand Name : GFUVE
Model Number : LZCK2500-10
Certification : CE, ISO9001
Place of Origin : BEIJING CHINA
MOQ : 3PCS
Price : 100-300USD/PC
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability : 20000PCS/MONTH
Delivery Time : 3-7days
Packaging Details : Standard export box
Name : zero sequence current transformer
Material : new magnetic
Usage : protection current transformer
Application : protection device of current measurement
Color : red and black
Ratio : 100-2000A/5A or 1A
Load : 2.5VA-20VA
Diameter : 120mm, 140mm, 160mm
Class : 5P10, 10P10
Weight : 7KG-10KG
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120mm High Voltage Cast Epoxy Resin Split Core Zero Sequence Current Transformer

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 
StandardsIEC60044-1; IEC 61869-2; NTC 2205; ANSI C57.13; GB1208-2006
Rated primary current100-1500A
Rated load≤20VA
Rated frequency50Hz or 60Hz
Rated secondary current5A or 1A
Rated short-time thermal current40kA, 1S
Rated continuous thermal current120%I1n
Secondary winding power-frequency voltage3kV, 1min
Instrument security factorFS≤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
ConditionNo existence of severely begrimed, erosive and radioactive gas in the air. Permission of long-term operation under rated current.

SELECTION GUIDE


TypeLZCK2500-10LZCK2500-10
PurposeMeasuring current transformerProtection current transformer
RatioAccuracy class and rated load(VA)Accuracy class and rated load(VA)
I1/I20.51310P1510P1010P5
300/55552.557.5
400/55552.557.5
500/557.57.557.510
600/557.57.557.510
800/510101051015
1000/510151551015
1200/5152020101520
1500/5152020101520

SELECTION GUIDE


ModelPrimary rated currentRated loadAperture (mm)Description (mm)Weight (kg)MaterialWater-proof
LZCK-55100-1500A≤10VAφ55180×138×522ABS+ResinIP65
LMCK185-10300-3000A≤25VAφ185350×283×554.5ABS+ResinIP65
LZCK310-10300-600A≤10VAφ50φ50 x φ110 x 321Resinsilicon case (option)
LZCK322-1030-600A≤10VAφ50φ50 x φ110 x 521.6Resinsilicon case (option)
LZCK350-1020-600A≤25VAφ50φ50 x φ110 x 1053.1Resinsilicon case (option)
LZCK720-1020-1000A≤25VAφ60φ80 x φ110 x 502.1Resinsilicon case (option)
LZCK2500-10500-1500A≤20VAφ120φ120 x φ185 x 1007Resinsilicon case (option)
LZCG530-1030-600A≤20VAφ45φ45 x φ120 x 652.1Resinsilicon case (option)
LZCG930-10100-1500A≤25VAφ60φ60 x φ155 x 603.6Resinsilicon case (option)
LZCT722-1020-600A≤10VAφ82φ82 x φ130 x 552.3Resinsilicon case (option)

WIRING DIAGRAMS


Cast resin straight-through current transformer
P1, P2 is primary polarity terminal, S1, S2 is secondary polarity terminal.
P2, S2 is homonymous terminals (subtractive polarity).































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