110kv Oil-Immersed Current Transformer

110kv Oil-Immersed Current Transformer

· Close to zero load shift · Excellent balance properties · Precision output voltage · Minimal thermal variance · RoHS compliant · Smaller volume, lighter weight · Perfect protection, delicate structure for convenient installing · Excellent design and industrial appearance · High accuracy satisfied diverse application · Flexible design · Versatile modular box for diverse application

  • Product Introduction
As one of the company's main products, General Used Current Transformer, DC Immune High Accuracy Current Transformer, Residual Current Transformer Current has obvious price advantages over peers, and cultivated a group of old customers who support each other, which makes our sales continue to rise and become stable. We also always fulfill all contracts to the point and therefore enjoy excellent reputation and trust among our customers. With leading technology and advanced concepts, we wholeheartedly provide customers with satisfactory products and services, and continue to contribute to the prosperity and development of the social economy.

Rectangular high precision residual current transformer

 

S/N: LO-ORCT-XX

 

Product overview:

 

The LO-ORCT-XX Rectangular Series Residual Current Transformer (RCT) is primarily used in 380V, 660V low-voltage distribution cabinets, or densely packed cabinets, to continuously detect and monitor residual currents at corresponding circuit installation nodes.

The enclosure of this series is made from environmentally friendly flame-retardant ABS engineering plastic, high-permeability nanocrystalline soft magnetic material, offering high precision, good balance performance, compact size, high insulation strength, strong impact resistance, and ease of installation. It operates reliably and stably in indoor environments.

The LO-ORCT-XX Rectangular Series includes five specifications suitable for circuits with busbar widths up to 300mm, meeting the needs of detecting residual currents in distribution circuits up to 1000A.

This series adopts an optimized magnetic circuit design, setting the coil winding process based on magnetic circuit characteristics, and combining it with a compact shielding structure. This allows the product to meet requirements for accuracy, sensitivity, and balance performance while maintaining a compact size. The product's fixing feet feature a rotary structure design, which not only minimizes costs during packaging and transportation but also provides good protection for the fixing structure.

For larger specifications of the product installed in copper bar circuits, due to the relatively heavy weight of the product, it is recommended to use a flat mounting bracket to increase the stability of the installation. To achieve better monitoring results, it is best to position the busbar in the middle of the transformer's rectangular through-hole, avoiding placing the busbar too close to the inner wall side of the product's straight edge.

The terminal positions of this series also adopt a standard rail structure design, allowing the signal processing unit's housing to be clamped on its top. This gives the product greater expansion capabilities.

 

Features:

  • Resin casting process, excellent waterproof and moisture-proof performance
  • It has strong overload capability and can be overloaded 20 times the rated current for a long time if necessary.
  • Excellent balance characteristics, small size products meet the detector alarm threshold requirement of 50mA
  • High precision: precision level 0.5/1.0/3, optional compact design, small size

 

Normal use and installation conditions:

  • Installation location: indoor/outdoor. Ambient temperature -40℃ ~ +45℃
  • It is recommended that the relative humidity of the environment should not be greater than 80%
  • The altitude does not exceed 3000m
  • Atmospheric conditions: There are no seriously polluted, corrosive and explosive media in the atmosphere
  • An environment without significant frequent vibration and shock. Storage temperature :-20℃ ~ 75℃

 

Balance performance:

 

P/N

Main circuit rated operating current

Test current

Conductor diameter

Conductor insulation thickness

Unbalance current

LO-ORCT-25

0≤In≤100A

100A

6mm

0.5mm

≤5mA@100A

LO-ORCT-35

0≤In≤250A

315A

10mm

1.5mm

≤10mA@315A

LO-ORCT-40

0≤In≤400A

630A

14mm

2.0mm

≤20mA@630A

LO-ORCT-45

0≤In≤630A

630A

14mm

2.0mm

≤20mA@630A

LO-ORCT-60

0≤In≤1000A

1000A

20mm

2.0mm

≤30mA@1000A

 

Dimensions:

 

78

 

Model specifications

Main circuit current (A)

Overall dimensions (mm)

Dimensions (mm)

L

W

H

R

S

D1

D2

M

LO-ORCT-25

≤100A

152

32

77

112

25

153.5

163.5

6

LO-ORCT-35

≤250A

186

32

91

142

35

185

198.5

6

LO-ORCT-40

≤400A

240

32

100

192

40

245.5

257

6

LO-ORCT-45

≤630A

282

32

107

232

45

284.5

298

6

LO-ORCT-60

≤1000A

368

45

140

300

60

368

388

6

 

General technical specs:

Technical Spec

Electrical specs

Rated primary current

1000mA

5A

5A

10A

10A

Rated secondary current

0.5mA

2.5mA

5mA

5mA

10mA

Rated continuous thermal current

2000mA

10A

10A

50A

50A

Operating frequency

50-60Hz

Rated Accuracy class

Equal or above Class 0.5

Operating voltage

<=660V

Flame retardant class

UL94V-0

Insulation resistance

>= 1M Ohms @500VDC

Dielectric strength

AC3KV/2mA/60s/50Hz

Thermal Class

Class B

 

When the corresponding AC current passes the residual current transformer, the output sampling voltage should meet the requirements listed in the table below

67

 

R=1000Ω C=0.022uF Current source frequency:50-60Hz, accuracy class better than 0.1%, the voltage meter accuracy class of mV testing range is better than 0.1%

 

 

Detection current value(mA)

Current range

(mA)

Load resistor

Testing terminals

Sampling voltage range

(mV)

50

49.75-50.25

1000Ω/0.022uF

S1-S2

24.64-25.64

200

199-201

97.18-101.14

500

498-502

243.01-253.01

800

796-804

388.7-404.7

1000

995-1005

486.25-506.26

 

WuXi Liou Electronics Co.,LTD

We take 110kv Oil-Immersed Current Transformer that cater to and meet the needs of customers as our responsibility, and we have an independent research and development department to continuously introduce new ones. Our main business is diversified, and we have formed a diversified one-stop product service business structure. We have noticed that with the economic growth, the industrial structure is accelerating the transition from simple labor-intensive products to capital and technology-intensive products and self-owned brands and self-developed products.

Hot Tags: residual current transformer high current, China, manufacturers, customized, quotation, low price, made in China, High Precision Split Core Current Transducer, High Precision Split Core Current Transformer, Ee13 Flyback Switching Transformer, current transformer with dc immune, High current Zero Sequence Current Transformer, Class 0 1 High Accuracy Transformer

[[ProKeywords]]
Send Inquiry