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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Three Phase Zero Sequence Current Transformer For Ring Cabinet / Inflatable Cabinet Voltage

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Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd.
City:beijing
Province/State:beijing
Country/Region:china
Contact Person:Andy
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Three Phase Zero Sequence Current Transformer For Ring Cabinet / Inflatable Cabinet Voltage

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Brand Name :GFUVE
Model Number :LZZT943-10
Certification :CE, ISO9001, UL
Place of Origin :BEIJING CHINA
MOQ :3 PCS
Payment Terms :L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability :20000 PCS/MONTH
Delivery Time :3-7 days
Packaging Details :Standard export carton
Name :Three phase Current Transformer
Rated load :≤10VA
Usage :Protection current transformer
Ratio :50-600A / 5A or 1A
Weight :9.5KG
FS :≤10
Material :ABS + resin
Diameter :82mm
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View Product Description

LZZT943-10 resin cast Three phase Zero Sequence Current Transformer for Ring cabinet and inflatable cabinet voltage

Introduction

LZZT Combined bushing type three phase current instrument transformer is suitable for current measurement and protection of distribution equipment in 35kV or 10kV AC. power system. The combined bushing type current transformer is fit for be installed at the three-phase bushings of the ring switchgears and the switches on the wire poles, It is used to the measurement and protection of the three-phase current and the zero sequence current for the three-phase bushings and the zero sequence current for the loops of the several cables.

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 arevacuum poured by insulated resin.

New magnetic material amorphous alloy or permalloy is taken to be the core of the current transformer, which has high magnetic permeability, low saturation induction density and good stability. Therefore, the measuring accuracy is higher and the instrument security factor in lower. Since the high quality silicon steel sheet metal processed by advanced technology is taken to be the core of the protection windings, the accuracy limit factor will be higher.

The circular ring core and secondary windings are poured by high quality epoxies resin or polyurethane or silicon rubber in the fire retardant plastic casing, which has the characteristic of moisture proof, stable performance and dispensing with maintenance. The cable can cross the current transformer through its internal poles quickly and uniformly.

The current transformers can be divided several kinds according to the various current ratio, accuracy and rated loads. The specific parameters are showed in the corresponding parameter tables of every type.

Outline drawing

Three Phase Zero Sequence Current Transformer For Ring Cabinet / Inflatable Cabinet Voltage

Wiring diagrams

A, B, C 3P one Coil CT A, B, C 3P one Coil CT+ ZCT

A, C 2P one Coil CT A, C 2P one Coil CT+ZCT

A, C 2P double Coil CT A, C 2P double Coil CT+ZCT

A, B, C 3P double Coil CT

A, B, C 3P double Coil CT+ZCT

Ordering instructions

Be sure to indicate model, current ratio, accuracy class, rated load and use of the products when designing, selecting type or purchase. Special specifications could be customized.

All kinds of current transformers of different specifications and parameters can be made according to the client's demands.

LZZT Combined bushing type current instrument transformer: 1A or 5A.Secondary winding could be tapped when necessary, namely multi-current-ratio transformer.

PARAMETERS

Technical parameters
Standards IEC60044-1; IEC 61869; NTC 2205; ANSI C57.13; GB1208-2006
Rated primary current 20-600A
Rated load ≤10VA
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
Diameter(mm) 75
Mechanical parameters
Dimensions (W×D×H) (mm) 3-Φ75/150-440×150×80
Weight (kg) 9.5
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.

Type LZZT943-10 LZZT943-10
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
20/1 1
40/1 1.5
50/1 2.5 1.5
75/1 3.75 1 2.5
100/1 2.5 5 1 2.5
200/1 3.75 5 7.5 2.5 5
300/1 5 7.5 12.5 3.75 7.5
400/1 7.5 10 15 5 12.5
500/1 10 12.5 20 5 12.5
600/1 12.5 15 20 7.5 15
50/5A 2.5
100/5 2.5 1.5 2 2.5
150/5 2.5 3.75 5 1.5 2.5 2.5
200/5 2.5 5 5 2 2.5 2.5
300/5 5 5 5 2.5 2.5 3.75
400/5 7.5 7.5 10 3.75 5 5
500/5 10 10 12.5 5 5 7.5
600/5 10 12.5 15 5 5 10
800/5 12.5 12.5 15 5 10 10
1000/5 15 15 20 5 10 10
2000/5 15 15 20 10 15 20

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