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CATALOGUE
OUTDOOR HT METERING UNIT SET JLSZXW5-12
The model belongs to outdoor pole mounted dry type cycloaliphatic epoxy combined metering transformer. It is widely used in outdoor and Weather: Temperature can be from -5℃ to +55℃, Relative humidity and Altitude can be Up to 95% and 2000 m, can be installed in the areas of Pollution resistance level IV, no salt air and explosive gases etc.
Main Technical Data Sheet
|
No
|
Item |
CT |
VT |
|
1. |
Rated System Voltage |
11 kV |
|
|
2. |
Max. System Voltage |
12 kV |
|
|
3. |
Impulse Withstand Voltage BIL |
75 kV |
|
|
4. |
Power Frequency Test Voltage (r.m.s.) 1 minute (Primary) |
28 kV |
|
|
Power Frequency Test Voltage (r.m.s.) 1 minute (Secondary) |
3 kV |
||
|
5 |
Method of earthed |
Effectively earthed |
|
|
6 |
Ratio |
5/5A、10/5A、15/5A 25/5A、30/5A、50/5A 75/5A、100/5A、200/5A 300/5A、400/5A |
11/√3/0.11/√3 kV |
|
7 |
Rated Frequency |
50 Hz |
|
|
8 |
Rated Continuous Thermal Current |
120%(1.2) |
/ |
|
9 |
Rated Short time current (Ith) (thermal 1 second) |
40×Ipr |
/ |
|
10 |
Rated Dynamic Current (Idyn) |
2.5×Ith |
/ |
|
11 |
Rated Voltage Factor |
/ |
1.2Un/Continuous |
|
12 |
Standard connection |
/ |
Y-Y |
|
13 |
No. of Secondary Winding |
1 |
1 |
|
14 |
Rated Output(VA) |
10 |
15 |
|
15 |
Accuracy Class |
0.2 Metering |
0.2 Metering |
|
16 |
Instrument Security Factor (FS) |
5 |
/ |
|
17 |
Creepage Distance |
505mm |
|
|
18 |
No. of CTs and VTs |
3VT+3CT |
|
|
19 |
Type |
Outdoor Pole mounted Dry Type. |
|
|
20. |
Applicable Standard |
IEC: 61869-1&2 (Latest Edition) |
IEC: 61869-1&3 (Latest Edition) |
Note：Upon request we are glad to offer transformers according to other technical specs
Other Features:
a). The integrated unit is hot vacuum cast in an insulating resin, to achieve a discharge free high voltage insulation. The epoxy resin used in the outdoor environment has a whole full-casing design
b). Secondary terminals are covered by stainless steel metal to seal.
c).A secondary shorting switch strap provided in the junction box.
d). The lid of the secondary terminal box of the transformers ( metering unit) are provided with sealing facilities by using sealing screws to prevent access to the unauthorized persons.
e). Lifting tackles are provided for convenient and safe handing of the combined transformers.
f). External terminals for connection to overhead line (primary side) suitable for a range of stranded copper or aluminum conductors of 20 sq mm to 100 sq mm.
Outline drawing:
Wiring diagram:
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