Basic Info.
Model NO.
LJK
Insulating Medium
Epoxy Resin
Installation
Busbar Type
Magnetic Circuit Structure
Single Stage Type
Voltage Transformation Principle
Electromagnetic Type
Transport Package
Export Box
Trademark
DGG
Origin
China
HS Code
8504311000
Production Capacity
100000PCS/Year
Product Description
GENERAL This series of transformers are used in indoor small ground current systems of rated frequency 50Hz or 60Hz and rated voltage up to and including 35kV for three-phase cable grounding protection, it's also used with a relay.
The transformer can be divided into two parts during installation, and then they can be combined again and buckled tightly with a clamp. It can be installed without power.
MODEL AND MEANING
NORMAL ENVIRONMENTAL CONDITIONS
- Altitude: Should not exceed 1000m
- Ambient temperature: -5ºC ~ +40ºC
- Air relative humidity: ≤85%
- Air relative site: Indoor.
TECHNICAL PARAMETERS
- Rated secondary current: 5A or 1A
- Power factor: cosφ=0.8(lag)
- Rated frequency: 50Hz or 60Hz
- Rated primary current, rated output, and accurate level see table 1
- Insulating property: primary winding to secondary winding and ground, and secondary winding to the ground can bear the power frequency withstand voltage 3kV for 1min.
| Type | Rated primary current(A) | Accuracy Class | Rated Output (VA) | Rated Current Ratio (A) | Accuracy Class | Rated Output (VA) |
| LJK-Φ80 LJK-Φ100 | 50-60 | 10P5 | 2.5 | |||
| 75 | 10P5 | 3.75 | 75/5 | 10P5 | 2.5 | |
| 100 | 10P10(10P5) | 2.5(5) | 100/5 | 10P10(10P5) | 1.5(3.75) | |
| 150 | 10P10(10P5) | 3.75(7.5) | 150/5 | 10P10(10P5) | 2.5(7.5) | |
| 200-300 | 10P10(10P5) | 5(10) | 250-300/5 | 10P10(10P5) | 5(10) | |
| 400-600 | 10P5 | 5(10) | 400-600/5 | 10P10(10P5) | 5(10) | |
| LJK-Φ120 LJK-Φ160 LJK-Φ200 | 50-60 | 10P10(10P5) | 3.75 | |||
| 75 | 10P10(10P5) | 3.75(7.5) | 75/5 | 10P5 | 2.5 | |
| 100 | 10P10(10P5) | 7.5(15) | 100/5 | 10P10(10P5) | 3.75(7.5) | |
| 150 | 10P10(10P5) | 10(20) | 150/5 | 10P10(10P5) | 5(10) | |
| 200-300 | 10P10(10P5) | 10(20) | 250-300/5 | 10P10(10P5) | 7.5(15) | |
| 400-600 | 10P10(10P5) | 10(20) | 400-600/5 | 10P10(10P5) | 7.5(15) |
OUTLINE AND INSTALLATION DIMENSIONS
| Model | A | B | H | a | b | M | D | X |
| LJK-Φ80 | 196 | 166 | 49 | 145 | 124 | 173 | 80 | B |
| LJK-Φ100 | 214 | 190 | 60 | 157 | 136 | 196 | 100 | B |
| LJK-Φ120 | 235 | 210 | 80 | 174 | 155 | 210 | 120 | B |
| LJK-Φ160 | 275 | 250 | 72 | 203 | 180 | 255 | 160 | 10 |
| LJK-Φ200 | 366 | 344 | 82 | 279 | 238 | 355 | 200 | 12 |