Product Overview
LXZ series zero-sequence current transformers are widely used in zero-sequence current protection and small current grounding line selection of distribution lines in AC power systems and electrical equipment such as AC generators and motors.
Product Features
Technical Parameters
● Rated frequency: 50Hz/60Hz
● Rated secondary current: 5A/1A
● Rated continuous thermal current: 120%ln
● Power frequency withstand voltage: 3kV/1min/50Hz
● Instrument safety factor: FS ≤ 10
Conditions of Use
● Ambient temperature: -25℃ ~+40℃, daily average temperature not exceeding 35℃;
● No obvious dust, smoke, corrosive gases, steam or salt spray, etc.;
● Relative humidity: Daily average not exceeding 95%, monthly average not exceeding 90%;
● Altitude: Not exceeding 1000m.
Implementation Standards
GB/T20840.2-2014
Selection Parameter Table
| Model | Specifications and Dimensions Specifications and dimensions（mm） | Applicable cable specifications (single cable conductor cross-sectional area) 10KV Applicable cable specifications (single cable conductor cross-sectional area) 10KV | Weight Weight（Kg） |
| LXZ-10A | Φ185×Φ120×H75 | ≤500mm² | 4.8 |
Technical Parameter Table
| Product Categories Product Categories | Measuring current transformers Measuring current transformers | Protective current transformer Protective current transformer | ||
| Rated current ratio Rated current ratio 11 / 12 | Accuracy class and rated load (VA) Accuracy class and rated load (VA) | |||
| 0.5 | 1.0 | 10P10 | 10P5 | |
| 30/1 | 1.5 | 1.5 | ||
| 40/1 | 1 | 2.5 | 1 | 2.5 |
| 50/1 | 1.5 | 2.5 | 1.5 | 2.5 |
| 75/1 | 2.5 | 3.75 | 2.5 | 3.75 |
| 100/1 | 3.75 | 5 | 2.5 | 5 |
| 150/1 | 1.5 | 1.5 | ||
| 200/1 | 1 | 2.5 | 1 | 2.5 |
| 50/5 | 1.5 | 2.5 | 1.5 | 2.5 |
| 75/5 | 2.5 | 3.75 | 2.5 | 3.75 |
| 100/5 | 3.75 | 5 | 2.5 | 5 |
| 150/5 | 2.5 | 5 | 3.75 | 7.5 |
| 200/5 | 5 | 7.5 | 5 | 10 |
Wiring Diagram
Dimensional Drawing
Keywords
zero-sequence current transformer
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Category
Product Overview
LXZ series zero-sequence current transformers are widely used in zero-sequence current protection and small current grounding line selection of distribution lines in AC power systems and electrical equipment such as AC generators and motors.
Product Features
Technical Parameters
● Rated frequency: 50Hz/60Hz
● Rated secondary current: 5A/1A
● Rated continuous thermal current: 120%ln
● Power frequency withstand voltage: 3kV/1min/50Hz
● Instrument safety factor: FS ≤ 10
Conditions of Use
● Ambient temperature: -25℃ ~+40℃, daily average temperature not exceeding 35℃;
● No obvious dust, smoke, corrosive gases, steam or salt spray, etc.;
● Relative humidity: Daily average not exceeding 95%, monthly average not exceeding 90%;
● Altitude: Not exceeding 1000m.
Implementation Standards
GB/T20840.2-2014
Selection Parameter Table
| Model | Specifications and Dimensions Specifications and dimensions（mm） | Applicable cable specifications (single cable conductor cross-sectional area) 10KV Applicable cable specifications (single cable conductor cross-sectional area) 10KV | Weight Weight（Kg） |
| LXZ-10A | Φ185×Φ120×H75 | ≤500mm² | 4.8 |
Technical Parameter Table
| Product Categories Product Categories | Measuring current transformers Measuring current transformers | Protective current transformer Protective current transformer | ||
| Rated current ratio Rated current ratio 11 / 12 | Accuracy class and rated load (VA) Accuracy class and rated load (VA) | |||
| 0.5 | 1.0 | 10P10 | 10P5 | |
| 30/1 | 1.5 | 1.5 | ||
| 40/1 | 1 | 2.5 | 1 | 2.5 |
| 50/1 | 1.5 | 2.5 | 1.5 | 2.5 |
| 75/1 | 2.5 | 3.75 | 2.5 | 3.75 |
| 100/1 | 3.75 | 5 | 2.5 | 5 |
| 150/1 | 1.5 | 1.5 | ||
| 200/1 | 1 | 2.5 | 1 | 2.5 |
| 50/5 | 1.5 | 2.5 | 1.5 | 2.5 |
| 75/5 | 2.5 | 3.75 | 2.5 | 3.75 |
| 100/5 | 3.75 | 5 | 2.5 | 5 |
| 150/5 | 2.5 | 5 | 3.75 | 7.5 |
| 200/5 | 5 | 7.5 | 5 | 10 |
Wiring Diagram
Dimensional Drawing
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0411-83167110
Address
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