JLSZV23-10W Outdoor Combined Transformer
Combined transformer: a transformer which is composed of current transformer and voltage transformer and is used for power metering. The accuracy class of combined transformer current transformer is 0.2S, and the accuracy class of voltage transformer is 0.2.
This product is a combined transformer integrating current and voltage, commonly known as metering box. It is used for 10kV line to supply power to three-phase three wire electric energy meter and terminal for electric energy measurement.
description
Application scenario
The transformer is mainly installed and used in the electric complete equipment, ring network cabinet, switching station, substation and other scenes;
The ambient temperature is between – 5 ℃ and 50 ℃, and the daily average temperature does not exceed 30 ℃;
The altitude shall not exceed 1000m;
The current transformer is allowed to operate for a long time at 1.2 times of the rated current. When the current transformer has primary current passing through, the secondary winding shall not be open circuited, otherwise high voltage will cause personal injury and affect product performance;
The voltage transformer is allowed to operate for a long time under 1.2 times of the rated voltage, and the secondary winding of the voltage transformer shall not be short circuited, otherwise the voltage transformer will be burnt.
Technical parameter
Product standardsGB/T20840.1 General Technical Requirements for Transformer
GB/T20840.2 Supplementary Technical Requirements for Current Transformers
GB/T20840.3 Supplementary Technical Requirements for Voltage Transformers
GB/T20840.4 Supplementary Technical Requirements for Combined Transformer
GB/T311.1 Insulation Coordination of High Voltage Transmission and Transformation Equipment
GB/T 16927.1 High Voltage Test Technology Part I General Test Requirements
| Voltage of some parameters: | ||||||
Type | Rated transformation ratio (kV) | Accuracy class Three-phase rated secondary output (VA) | Limited output (VA） | Rated insulation level (kV) | Weight (kg） | Notes |
| JLSZV-6W | 6/0.1 | 0.2—15 | 2×300 | 7.2/30/60 | 74 | |
| JLSZV-10W | 10/0.1 | 12/42/75 | ||||
| Current of some parameters:（Single transformaion ratio） | |||
| Rated transformation ratio(A) | 1th/1s (kA r.m.s.) | Idyn (kA peak) | Accuracy class and rated secondary output(VA) |
| 5/5 | 0.3 | 0.75 | 0.2(S)—10 |
| 10/5 | 0.6 | 1.50 | |
| 15/5 | 0.9 | 2.25 | |
| 20/5 | 1.2 | 3.0 | |
| 25/5 | 1.5 | 3.75 | |
| 30/5 | 1.8 | 4.5 | |
| 40/5 | 2.4 | 6.0 | |
| 50/5 | 3.0 | 7.5 | |
| 60/5 | 3.6 | 90. | |
| 75/5 | 4.5 | 11.25 | |
| 80/5 | 4.8 | 12.0 | |
| 100/5 | 6.0 | 15.0 | |
| 120/5 | 7.2 | 18.0 | |
| 150/5 | 9.0 | 22.5 | |
| 200/5 | 12.0 | 30.0 | |
| 250/5 | 15.0 | 37.5 | |
| 300/5 | 18.0 | 45.0 | |
| 400/5 | 24.0 | 60.0 | |
| 500/5 | 30.0 | 75.0 | |
| 600/5 | 36.0 | 90.0 | |
| 750/5 | 45.0 | 112.5 | |
| 800/5 | 48.0 | 120 | |
| 1000/5 | 48.0 | 120 | |
Outline and installation dimension drawing
