Ningbo Macwey Industrial Technology Co.,Ltd
                                                                                                           
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13 Years
Since 2013
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10kV / 12kV High Voltage CT High Sensitivity Oil Immersed Current Transformers LJWD-10.12

Price Negotiable
Price: $120
MOQ: 1 piece
Delivery Time: 20 days
Brand: MacweyTEK
Product Description

LJWD-10.12 Oil-Immersed High Voltage Current Transformer High Sensitivity Current Transformer

 
Product descriptions
The LJWD-10.12 Oil-Immersed High Voltage Current Transformer is a steel-tank, oil-immersed device designed for 10kV and 12kV AC power systems (50Hz/60Hz). It is widely used for current measurement, energy metering, and relay protection in urban and rural power grids, substations, and industrial transformer stations. Built for reliability, it can operate continuously at 120% of rated current, withstand harsh outdoor conditions, and deliver long-term stable performance at altitudes up to 4000m and ambient temperatures from -25°C to +40°C.
 
Service conditon ·Installation: Indoor & outdoor ·Temperature: -25°C to +40°C ·Humidity: ≤95% relative humidity ·Altitude: ≤2000m (customizable up to 4000m) ·Pollution Class: Class II Construction & Features ·Oil Tank Design: Waterproof & snowproof cover, oiling valve, and diaphragm to reduce oxidation and extend service life. ·Vacuum Oil Treatment: Vacuum oil-filtering and oil-injection improve insulation and cooling efficiency. ·Thermal Stability: 187.5 times enhanced thermal stability for demanding power systems. ·Flexible Configurations: ·Single/Double secondary winding ·Single/Double ratio options ·Accuracy Classes: 0.2, 0.5, 1.3 (D) for both measurement and protection.
 
Technical Parameters ·Rated Primary Current: 5A – 1500A ·Rated Secondary Current: 5A ·Accuracy Class: 0.2, 0.5, 3 (customizable combinations) ·Rated Short-Time Thermal Current: Up to 30kA ·Rated Dynamic Current: Up to 50kA ·Rated Insulation Level: 12/42/75kV ·Standards: GB1208-1997, IEC standards
 
Technical Parameters Table 1
Class
Hz
Current
Ratio (A)
Secondary
Capacity
(kA)
Primary
Voltage
(kV)
Primary
Current &
Rated
Current (%)
Max.Error
Load Situation
Ratio
error%
difference
(min)
0.5
3
D
50
30/5, 40/5
50/5, 75/5
100/5, 150/5
200/5, 300/5
400/5, 600/5
1000/5, 1500/5
15
10
20
±0.75
±0.5
±50
±40
not be smaller than 15
ohms within the rated
capacity range of
25%-100%.
2. The load power factor
is Cosφ = 0.8.
Technical Parameters Table 2
Type
Class (KV)
Ratio (A)
0.2 Capacity (VA)
Continuous Protection
Weight (kg)
LJW-10,12
11,12
5 – 400/5
10 – 15
protection Without
monitoring
21
LJWD-10,12
11,12
5 – 400/5
10 – (15)
15 – (30)
28
Customization and Support: We provide tailored solutions for the LJWD-10.12 Oil-Immersed Current Transformer, including custom current ratios, accuracy classes, and output ratings to fit your specific requirements. Contact us to create a transformer designed for your operational needs.
Outline & Dimensions
·Compact single-phase, oil-immersed design for easy installation. ·Equipped with grounding bolts, oil level monitoring, and drain plug. ·Customizable tank dimensions and mounting options.
 
Customization & Support
We provide OEM / ODM customization. Please specify: ·Model & Current Ratio (e.g., LJWD-10, LJWD-12, 200/5A, 400/5A) ·Accuracy Class & Output (e.g., 0.2, 0.5, 3; 10–30VA) ·Insulation Level & Service Conditions (e.g., 12/42/75kV; temperature, altitude, pollution class) ·Additional Requirements (e.g., single/double secondary winding, grounding, customized tank design)
 

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Ningbo Macwey Industrial Technology Co.,Ltd
Location No.218, Weier Road, Chongshou Industrial Park, Cixi City (Ningbo), China
Contact Person Alec Sung

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