66KV Oiled Current Transformer Electric Substation Equipment

66kV Oiled Current Transformer Electric Substation Equipment 66kV Oiled Current Transformer Electric Substation Equipment 66kv current transformer we have two kinds, upright and inverted type. Dead tank is a traditional design which has mature technology, rich operation experience, good...

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66kV Oiled Current Transformer Electric Substation Equipment

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66kV Oiled Current Transformer Electric Substation Equipment

66kv current transformer we have two kinds, upright and inverted type.

Dead tank is a traditional design which has mature technology, rich operation experience, good stability and  low cost.

Live tank is a new and popular design, it is suitable for big current ratios, good electrical field, compact  structure and strong dynamic thermal ability.

Both of them we have rich manufacturing and operating experience.

Optimized designs for external insulation make inner and external electric field distribute evenly without  discharge. Two type insulators are offered for user.

1. Composite insulator

2. High strength porcelain insulator

Hermetically sealed stainless steel metallic bellows is installed on the top, which protect the transformer  oil from moisture and extend the life time, also there is a oil level gauge on the bellows for observing the changing of oil volume.

The base and secondary box adopt spray painting or hot galvanizing, which gives a high degree of corrosion  resistance.


Product Name

66kV Oiled Current Transformer Electric Substation Equipment

Brand Name

HYEE

Origin

Dalian, CN (Mainland)

Phase

Single

Coil Structure

Wound

Coil Number

1-6

Color

Brown/White

Frequency

50/60Hz

Certification

CTQC/IEC/ISO9001

Package

Wooden Carton

Delivery Time

25-30 days


Scope

◆It is outdoor, single phase and oil immersed live and dead tank current transformer, which can be used in 66~69kV, 50 or 60Hz power system for metering, measuring and protecting

Standards

◆IEC 61869-1; IEC 61869-2

◆GB 20840.1; GB 20840.2

◆IEEE C57.13

Service conditions

◆Ambient temperature: -55~+45℃

◆Altitude: ≤1000m (If above 1000m,the product will be customized according to user’s request)

◆Pollution level: II, III, IV


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Rated frequency,Hz

50; 60

Rated voltage,kV

66 or 69

Highest voltage for equipment,  kV

72.5

Rated power frequency withstand voltage, kV

140/160

Rated lightning impulse voltage,  kV

325/350

Flashover distance,  mm

700

Cree. distance,  mm

W1:1450

W2:1820

W3:2250

Mechanical load, N

3000

Rated primary current, A

5~5000

Rated secondary current, A

1; 2; 5

Accuracy class

0.1; 0.2; 0.5; 0.2S; 0.5S; 0.5S; 5P; 10P; PX…

Rated output(Recommended value), VA

1A: 10~30 VA

2A: 10~30 VA

5A: 15~50VA

Instrument security factor  FS

5; 10

Accuracy limit factors  ALF

10,15,20,25,30

Short-time thermal current(Maximum),kA

50kA/3s


Technical date of transient protection winding

Accuracy class

TPY

Rated ratio,A

1000~8000/1

Rated resistive burden (Rb), VA

7.5; 10; 15; 20

Rated symmetrical short-circuit current factor (Kssc)

10; 15; 20

Rated primary time constant(Tp)

40; 60; 80; 100

Duty cycle:

C-0.1s-O

C-0.1(0.04)s-O

C-0.1(0.04)s-0.5s-0.1(0.04)s-O


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