LVQB-132 Outdoor Gas-insulation type 132kv current transformer

1, 132kv current transformer 2, safety and prevent the danger of explosion. 3, 20years' sales experience

LVQB-132(110, 66)Outdoor Gas-insulation type 132kv current transformer

1,This product is of F6 gas insulation inversed structure. Primary winding is of penetrating type conducting rod structure; max short time withstand current reaches 63kA/3s

2,Primary winding runs through the center, free of the influence of leakage flux, with measuring accuracy reaching class 0.1 and class 0.2s

3,The upper enclosure is processed from welded aluminum alloy, with metal bursting disc will rapidly release pressure after internal pressure rises to 0.85Mpa, hence improve the product safety and prevent the danger of explosion.

4,Secondary winding is cast in aluminum shielding case by organic materials, hence the secondary circuit will not suffer electric shock caused by insulation breakdown.

5,There are two types of external insulating bushings available for user choice: fiber glass bushing with silicon rubber umbrella skirt: high-strength porcelain properly.

6,Seal rung is made from imported fluorine rubber. Its annual leakage rate is less than 0.5%.

7,Pedestal is of double-layer anticorrosion protection; stainless steel fasteners, nameplate and all other parts are guaranteed be rust-free all the time

8,The pedestal is equipped with density meter which end display internal gas pressure and density and send out signal when internal gas pressure reduce to alarm pressure requesting gas supply.

Technical data

Rated primary voltage	132(110,66)kv
Highest voltage for equipment	145(126,72.5)kv
Rated frequency	50 or 60 Hz
Rated current ratio	2×200-2×3000/5or 1A
Number of secondary windings	1-6
Accuracy of measuring winding	0.2, 0.2s, 0.5, 0.5s
Accuracy of protection winding	5p or 10p
Rated secondary output	20-50va
Accuracy limit factor	15, 20, 25, 30
Instrument security factor	<5 or <10
Partial discharge under 1.2Um/√3Kv	≤5Pc
SF6(20)rated gas pressure Gas supply pressure	0.4MPa 0.35MPa
Power frequency withstand voltage on primary windings	230(275)kv 200(230)kv 140kv rms
Rated lightning impulse withstand voltage	550(650)kv 450(550)kv   325kv peak
Power frequency withstand voltage between primary sections	3kv rms
Power frequency withstand voltage on earth screen to earth	5kv rms
Power frequency withstand voltage on secondary windings and secondary windings to earth	3kv rms
secondary winding inter-turn withstand voltage	4.5kv peak
Mechanical strength(three direction)	2500N

LVQB-132 Outdoor Gas-insulation type 132kv current transformer