Current Transformer Ratios Burden

Current Transformer Ratios Burden Description Current Transformer Ratios Burden This is high voltage oil immersed products. Current transformer ratios can be 50~2000:1/5A. The accuracy class of CT is 0.1: 0.2: 0.5: 0.2S: 0.5S: 5P: 10P: TPS: PX....metering and protection. HYEE instrument...

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Current Transformer Ratios Burden

Description

Current Transformer Ratios Burden

This is high voltage oil immersed products. Current transformer ratios can be 50~2000:1/5A. The accuracy class of CT is 0.1: 0.2: 0.5: 0.2S: 0.5S: 5P: 10P: TPS: PX....metering and protection. HYEE instrument transformers are widely used in power transmission lines and power distribution. They are for current measuring and protection, delivering high accuracy in current metering. With 16 years experience and ISO certifications, we have a wide range including cast resin, dry, gas, oiled type Current transformer & Voltage transformer voltage from 0.5-330kV. 

Over view:

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  Purpose

♦ It is outdoor, single phase and oil immersed hair-pin type current, Protection CT and Metering CT which is used for metering and relay protection of 33-220kV, 50 or 60Hz system. 

 

 Standards

♦ IEC61869-1: Instrument transformers – Part 1 General requirements

♦ IEC61869-2 Instrument transformers - Part 2 Additional requirements for current transformers

 

 Service condition

♦ Ambient temperature:-40~+40℃

♦ Altitude: ≤2000m(If above 2000m,the producer                 will be customized according to user's                      request)

♦ Environment pollution level: II,III,IV  

 Technical Data 

Rated frequency

Hz

50: 60

Rated voltage

kV

66

110/115

115/132/138

220/230

Highest voltage for equipment

kV

72.5

126/123

145

245/252

Power frequency withstand voltage on primary windings

kV

160

230

275

460

Rated lightning impulse withstand voltage

kV

350

550

650

1050

Flashover distance

mm

700

1050

1300

2000

Creepage distance

mm

1820: 2250

3150: 3910

3630: 4500

6300: 7820

Mechanical load

N

2000

2000

2000

3000

Rated primary current 

A

50~1600

50~1600

50~1600

150~2000

Rated secondary current 

A

1:5

Accuracy class

 

0.1: 0.2: 0.5: 0.2S: 0.5S: 5P: 10P: TPS: PX....

Rated output (Recommended value)

VA

1A: 10~15VA 

5A: 30~50VA

Instrument security factor

FS

5: 10

Accuracy limit factor

ALF

10, 15, 20, 25, 30

Short-time thermal current

( Maximum)

KA

50KA/3s (In series)

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 Dalian Huayi Electric Power Electric Appliances Co., Ltd.  was found in 2002 who is a professional manufacturer of 0.5kV-330kV current and voltage transformer involved  cast resin, oil immersed, inductive, capacitive, gas SF6, dry type and so on. The company covers an area of 150,000m2 and has more than 500 employees including over 50 engineering technicians and +10 senior technicians and designers.

Our company has been certified by ISO9001 Quality Management System.

The company pursues to offer high-precision and high-quality products to customers in the tenet  of "Technology-driven, Quality-oriented, Credit-valued, Customer-centered". 

Workshop

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 Case show

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