Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd.


an exclusive current transformer, split core current transformer, current clamp & voltage transformer manufacturer.

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10KV Instrument Current Transformer , Medium Voltage Transformer Casting Insullation

Good quality Split Core Current Transformer for sales
GFUVE Electronics product is very perfect to be used in electric power company! For example ammeter recorder, outdoor split core current transformer, meter test equipment, ct analyzer etc. They is safety, high precision and high quality. Please rest assured! Oscar

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10KV Instrument Current Transformer , Medium Voltage Transformer Casting Insullation

China 10KV Instrument Current Transformer , Medium Voltage Transformer Casting Insullation supplier

Large Image :  10KV Instrument Current Transformer , Medium Voltage Transformer Casting Insullation

Product Details:

Place of Origin: BEIJING CHINA
Brand Name: GFUVE
Certification: CE, UL, KEMA, ISO9001
Model Number: LZZW-10Q

Payment & Shipping Terms:

Minimum Order Quantity: 3PCS
Price: 1800-2500USD/PC
Packaging Details: Standard Export Wooden Box
Delivery Time: 2-3weeks
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 5000PCS/MONTH
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Detailed Product Description
Name: Instrument Transformer Application: 10KV Line
Function: Current Measurement Theory: Electromagnetic
Usage: Full Opeartion Mode Class: 0.2s, 0.5, 5P10, 5P20
Burden: 10-100VA Surface Creepage Distance: 460mm
Standard: IEC61869, IEC60044 Weight: 23Kg


10KV Medium Voltage Casting insullation current instrument transformer





Instrument transformers are high accuracy class electrical devices used to isolate or transform voltage or current levels. The most common usage of instrument transformers is to operate instruments or metering from high voltage or high current circuits, safely isolating secondary control circuitry from the high voltages or currents. The primary winding of the transformer is connected to the high voltage or high current circuit, and the meter or relay is connected to the secondary circuit.
Instrument transformers may also be used as an isolation transformer so that secondary quantities may be used in phase shifting without affecting other primary connected devices.
Current transformers (CT) are a series connected type of instrument transformer. They are designed to present negligible load to the supply being measured and have an accurate current ratio and phase relationship to enable accurate secondary connected metering.
Current transformers are often constructed by passing a single primary turn (either an insulated cable or an uninsulated bus bar) through a well-insulated toroidal core wrapped with many turns of wire. This affords easy implementation on high voltage bushings of grid transformers and other devices by installing the secondary turn core inside high-voltage bushing insulators and using the pass-through conductor as a single turn primary.






The LZZW-10Q outdoor current instrument transformers are fully enclosed and cast in epoxy resin. Instrument transformer is equipped with one core and coil assembly rated for measurement and protection, and then output multi ratio. The current transformers are designed for electric power systems of 50Hz/60Hz rated frequency and 35kV rated voltage. They are used for outdoor mounting. The performances of the products meet standards IEC60044-1, IEC61869-2 and ANSI/IEEE C57.13. The products are applied to metering electric energy, voltage controlling and relay protection.

1. Measurement current & voltage  for energy meter and power meter

2. Supply protection current signal for microcomputer protection relay set





New magnetic material is taken to be the core of the current instrument 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.

High precision 0.2s

Designed for 30years lifes

Good Stability in 33kv power line

Big burden.

Multi ratio CT





Rated primary current
(KA r.m.s.)
(KA peak)

Accuracy class
Rated secondary output(VA) Surface creepage distance
0.2(S) 0.5S 0.5 5P10 5P15 5P20
20-40 4 10 0.2(S)/5p
10 15 20 15 10 460 23
30-60 6 15
40-75 7.5 18.8
50-100 10 25
75-150 15 37.5
100-200 20 50
150-300 30 75
200-400 40 100
300-600 60 130
400-800 80 160
600-1200 100 160




Be sure to the type, current ratio, accuracy class, rated load and use of the products when you plan to make a order. Special specifications could be customized.All kinds of different specifications and parameters current transformers can be made according to your needs.


Front View of Resin Split Core Current Transformer,doule ratio

P1, P2 is primary polarity terminal, S1, S2 is secondary polarity terminal.
P2, S2 is homonymous terminals (subtractive polarity).


Contact Details
Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd.

Contact Person: huang

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