UTCT Outdoor Epoxy Resin Current Transformer

Description

UTCT is used for power systems with the max. voltage 0.75kV and frequency of 50 or 60Hz. The product is made of outdoor epoxy resin, which can be used outdoors directly. The secondary junction box adopts a sealed design, which will be waterproof suitable for long-term outdoor use. The secondary box cover is equipped with stainless steel lead seal screws. The secondary cable can output from top of CT.

The interior of the product adopts an amorphous alloy core, the inner hole directly passes through the cable, and the secondary winding adopts high-purity enameled copper wire. The product can also be directly designed for cable outlet without a secondary junction box, preventing users from tampering with the secondary wiring.

The maximum primary current of the product is 1000A, and the secondary current can be customized to 1A or 5A. The product accuracy can achieve IEC standard 0.15S level and ANSI standard 0.15 level. Capacity can be designed to a maximum of 20VA.

It also can be made by ERCT, high accuracy, extended range, to meet 0.15 class from 1% to rating factor.

Products meet with international standard ANSI C57.13 standard.

Service environment

Air temperature: Maximum temperature: +70°C; Minimum temperature: -20°C
Humidity: Monthly average humidity 95%; Daily average humidity 90%
Altitude above sea level: Maximum installation altitude: 1000m
Ambient air not apparently polluted by corrosive and flammable gas, vapor etc
No frequent violent shake

Product feature

High quality ANTI-UV outdoor epoxy resin, meet 10 years service life
Amorphous alloy core for CT, meet high standard accuracy class
Round window suitable for cable
Rated voltage Max to 750V
Primary current from 5A to 1000A
Accuracy class CT to 0.15S
Meet IEC and ANSI standard

Technical data for current transformer

Rated primary current (A)	Accuracy classes	Accuracy class combination	Accuracy class and output (VA)
			0.15	0.3
5 / 10 / 15 / 20 / 25 / 30 / 40 / 50 / 75 / 100 / 150 / 200 / 300 / 400 / 500 / 600 / 800 / 1000	0.15 0.3 0.6	B-0.1 B-0.2 B-0.5	B-0.1 B-0.2 B-0.5	B-0.1 B-0.2 B-0.5

Output can be designed to a maximum of 20VA. Outline dimension drawing is available in the product catalogue PDF.

>> Download UTCT Product Catalogue (PDF)

General
This Outdoor dry type current transformer used in 0.66kV, 0.75kV. power system, for measuring and protection.
It have been used in power line, or distrubution secondary output cable, and bay-installed switching stations.
The current transformer made from outdoor epoxy resin, amorphous alloy core for metering and high quality CRGO core for protection, primary and secondary use pure electrolytic copper.

Standard
All UNISUN Electric instrument transformers are in conformity with IEC standards, and recommendations IEC 61869. Transformers in conformity with specific country standards can also be supplied. (IEEE C57.13, NBR6855).

Specification data sheet

Type	Rated current ratio	Primary ampere-turn	Rated output (VA)
Type	Rated current ratio	Primary ampere-turn	0.5	1	3
LMZW-0.66	5,10,15,30,50,75,150	150	10	10
	20,40,100,200	200	10	10
	300~800	300-800	10	10
	1000~3000	1000-3000	20	30	50

Products can be customized by customer requirements, above data is standard data, customized data please contact us.

Overall dimension

Products can be customized by customer requirements, above dimension may change, correct dimension please contact us.

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Our Production

The products are designed in strict accordance with IEC or ANSI standards, and the manufacturing steps meet the technological requirements

Primary winding

High electrolytic copper is used as primary winding, silver base welding material is used at the welding place, and semiconductor shielded paper is wrapped to ensure that the partial discharge tseting data is qualified.

Secondary winding

Large capacity design secondary winding, automatic winding, high insulation and high purity enameled wire, to ensure wide capacity output under standard accuracy.