Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
LZZBW-10(GY) Outdoor Dry Type Current Transformer 10kV Support Type CT: 20-600A primary current, 0.2/0.5/10P10 accuracy class, dual-ratio configuration 2×5-2×300A, oil-free epoxy resin casting, 12/42/75kV insulation level, pollution class II, 10-15VA burden, maintenance-free, 5A/1A secondary, 50Hz, GB1208-2006, ideal for unattended substations.
Advanced LZZBW-10(GY) Dry Type Current Transformer: Outdoor dry type support type structure CT conforming to GB1208-2006 standard, rated insulation level 12/42/75kV, rated frequency 50Hz, rated secondary current 5A or 1A, ambient temperature -30°C to +40°C, pollution class II with compliant surface creepage distance, rated primary current 20-600A for single-ratio and 2×5-2×300A for dual-ratio configurations, flexible accuracy class combinations including 0.2/0.2, 0.2/0.5, 0.2/10P10, 0.5/10P10, 10P10/10P10, and 0.2/0.5/10P10 with burden capacity 10-15VA, heat stability current 1.8-40kA and dynamic stability current 3.0-75kA, meter security factor FS≤10, load power factor cosφ=0.8 (lag).
Superior Oil-Free Dry Type Design and Dual-Ratio Flexibility: LZZBW-10(GY) features innovative oil-free epoxy resin casting construction eliminating oil leakage and fire hazards while reducing maintenance requirements, improved thermal stability compared to traditional LB oil-immersed transformers, dual-ratio configuration allowing primary winding reconnection to meet different grid capacity requirements without transformer replacement, suitable for outdoor substations, rural small distribution networks, industrial enterprises, and especially unattended substations requiring maintenance-free oil-free operation, ideal for 10kV switchgear, power distribution systems, remote installations, and applications requiring reliable current measurement from 20A to 600A with oil-free dry type technology.
| LZZBW-10(GY) Current Transformer Specifications | Parameter | Unit |
|---|---|---|
| Brand | Bepto Insulation Systems | – |
| Model Number | LZZBW-10(GY) | – |
| Category | Switchgear & HV CT (High Voltage Current Transformer) | – |
| Product Type | 10kV Outdoor Dry Type Support Type Current Transformer with 20-600A Range, Oil-Free Epoxy Resin Casting, Dual-Ratio Configuration, 0.2/0.5/10P10 Accuracy Class, 12/42/75kV Insulation, Pollution Class II for Unattended Substations | – |
| Core Technology | Outdoor Dry Type Support Type Structure + Oil-Free Epoxy Resin Casting Technology + 10kV Design + Dual-Ratio Configuration (2×5-2×300A) + GB1208-2006 Standard Compliant + Rated Insulation Level 12/42/75kV + Rated Frequency 50Hz + Rated Secondary Current 5A or 1A + Ambient Temperature -30°C to +40°C + Pollution Class II + Surface Creepage Distance Compliant + Rated Primary Current 20-600A (Single-Ratio) and 2×5-2×300A (Dual-Ratio) + Flexible Accuracy Classes (0.2/0.2, 0.2/0.5, 0.2/10P10, 0.5/10P10, 10P10/10P10, 0.2/0.5/10P10) + Burden Capacity 10-15VA + Heat Stability Current 1.8-40kA + Dynamic Stability Current 3.0-75kA + Meter Security Factor FS≤10 + Load Power Factor cosφ=0.8 (Lag) + Improved Thermal Stability + Oil and Fire Hazard Elimination + Reduced Maintenance Requirements + Suitable for Unattended Substations + Replaces LB Oil-Immersed Transformers | – |
| Power (Voltage) | 10kV | – |
| Rated Voltage | 10kV | – |
| Rated Insulation Level | 12/42/75 | kV |
| Rated Frequency | 50Hz | Hz |
| Rated Secondary Current | 5A or 1A | A |
| Rated Primary Current (Single-Ratio) | 20-600 | A |
| Rated Primary Current (Dual-Ratio) | 2×5-2×300 | A |
| Ambient Temperature | -30°C to +40°C | °C |
| Pollution Class | II (Class 2) | – |
| Structure Type | Outdoor Dry Type Support Type | – |
| Insulation Type | Oil-Free Epoxy Resin Casting | – |
| Voltage Level | Medium Voltage (10kV) | – |
| Installation Type | Outdoor Support Type | – |
| Phase | Single Phase | – |
| Meter Security Factor | FS≤10 | – |
| Load Power Factor | cosφ=0.8 (Lag) | – |
| Standards Compliance | GB1208-2006 | – |
| FOB Port | Ningbo/Shanghai | – |
| Terms of Payment | Western Union, T/T, Paypal | – |
| Outdoor Dry Type | Yes (Outdoor Dry Type Support Type Structure) | – |
| 10kV Design | Yes (10kV Rated Voltage) | – |
| Support Type | Yes (Support Type Structure) | – |
| Oil-Free Design | Yes (Oil-Free Epoxy Resin Casting) | – |
| Dual-Ratio Configuration | Yes (2×5-2×300A Dual-Ratio) | – |
| Pollution Class II | Yes (Pollution Class II with Compliant Creepage Distance) | – |
| Maintenance-Free | Yes (Reduced Maintenance Requirements) | – |
| Unattended Substation Suitable | Yes (Ideal for Unattended Substations) | – |
| Replaces LB Oil-Immersed | Yes (Can Replace LB Oil-Immersed Transformers) | – |
| Fire Hazard Elimination | Yes (Oil and Fire Hazard Elimination) | – |
| 50Hz | Yes (Rated Frequency 50Hz) | – |
| 10kV Rated Voltage | Yes (Rated Voltage 10kV) | – |
| GB1208-2006 Compliant | Yes (In Accordance with GB1208-2006 Standard) | – |
| 12/42/75kV Insulation | Yes (Rated Insulation Level 12/42/75kV) | – |
| 5A or 1A Secondary | Yes (Rated Secondary Current 5A or 1A) | – |
| -30°C to +40°C Ambient | Yes (Ambient Temperature -30°C to +40°C) | – |
| 20-600A Primary Range | Yes (Rated Primary Current Range 20-600A) | – |
| 0.2 Accuracy Class | Yes (0.2 Metering Accuracy Class Available) | – |
| 0.5 Accuracy Class | Yes (0.5 Metering Accuracy Class Available) | – |
| 10P10 Protection Class | Yes (10P10 Protection Accuracy Class Available) | – |
| 10-15VA Burden Capacity | Yes (Burden Capacity 10-15VA) | – |
| Rated primary current (A) | Precision class combination | 0.2 (VA) | 0.5 (VA) | 10P10 (VA) | Heat stability current (kA) | Action stability current (kA) | Remark |
|---|---|---|---|---|---|---|---|
| 20 | 0.2 / 0.2 0.2 / 0.5 0.2 / 10P10 0.5 / 10P10 10P10 / 10P10 0.2 / 0.5 / 10P10 |
10 | 10 | 15 | 1.8 | 3.0 | Single variable ratio or dual variable ratio, two or three windings are available for secondary winding of dual variable ratio |
| 30 | same as above | 10 | 10 | 15 | 2.7 | 4.5 | same as above |
| 40 | same as above | 10 | 10 | 15 | 3.6 | 6.0 | same as above |
| 50 | same as above | 10 | 10 | 15 | 4.5 | 7.5 | same as above |
| 75 | same as above | 10 | 10 | 15 | 6.75 | 11.25 | same as above |
| 100 | same as above | 10 | 10 | 15 | 9 | 15 | same as above |
| 150 | same as above | 10 | 10 | 15 | 13.5 | 22.5 | same as above |
| 200 | same as above | 10 | 10 | 15 | 18 | 30 | same as above |
| 300 | same as above | 10 | 10 | 15 | 27 | 45 | same as above |
| 400 | 0.2 / 0.5 0.2 / 0.2 0.2 / 10P10 0.5 / 10P10 |
10 | 10 | 15 | 30 | 50 | Single variable ratio |
| 500 | same as above | 10 | 10 | 15 | 40 | 75 | Single variable ratio |
| 600 | same as above | 10 | 10 | 15 | 40 | 75 | Single variable ratio |
| Configuration Type | Primary Current Range | Ratio Flexibility | Secondary Winding Options | Application |
|---|---|---|---|---|
| Single-Ratio | 20-600A | Fixed single ratio | Two or three windings | Fixed load applications |
| Dual-Ratio | 2×5-2×300A | Two ratio options via primary reconnection | Two or three windings | Variable load applications requiring flexibility |
| Dual-Ratio Configuration | Primary Current Option 1 | Primary Current Option 2 | Flexibility Advantage |
|---|---|---|---|
| 2×5A | 5A | 10A | Low current flexibility |
| 2×10A | 10A | 20A | Low-medium current flexibility |
| 2×20A | 20A | 40A | Medium current flexibility |
| 2×50A | 50A | 100A | Medium-high current flexibility |
| 2×75A | 75A | 150A | High current flexibility |
| 2×100A | 100A | 200A | High current flexibility |
| 2×150A | 150A | 300A | Very high current flexibility |
| Precision Class Combination | Application | Current Range | Burden Capacity |
|---|---|---|---|
| 0.2/0.2 | Dual high-precision metering | 20-400A | 10/10VA |
| 0.2/0.5 | High-precision metering + standard metering | 20-600A | 10/10VA |
| 0.2/10P10 | High-precision metering + protection | 20-600A | 10/15VA |
| 0.5/10P10 | Standard metering + protection | 20-600A | 10/15VA |
| 10P10/10P10 | Dual protection | 20-300A | 15/15VA |
| 0.2/0.5/10P10 | Triple function (high-precision + standard + protection) | 20-300A | 10/10/15VA |
| Primary Current (A) | Heat Stability Current (kA) | Dynamic Stability Current (kA) | Heat/Dynamic Ratio |
|---|---|---|---|
| 20 | 1.8 | 3.0 | 1.67:1 |
| 30 | 2.7 | 4.5 | 1.67:1 |
| 40 | 3.6 | 6.0 | 1.67:1 |
| 50 | 4.5 | 7.5 | 1.67:1 |
| 75 | 6.75 | 11.25 | 1.67:1 |
| 100 | 9 | 15 | 1.67:1 |
| 150 | 13.5 | 22.5 | 1.67:1 |
| 200 | 18 | 30 | 1.67:1 |
| 300 | 27 | 45 | 1.67:1 |
| 400 | 30 | 50 | 1.67:1 |
| 500 | 40 | 75 | 1.88:1 |
| 600 | 40 | 75 | 1.88:1 |
| Dry Type Oil-Free Feature | Description | Benefit |
|---|---|---|
| Oil-Free Design | No oil insulation medium | Eliminates oil leakage and fire hazards |
| Epoxy Resin Casting | Solid epoxy resin insulation | Superior environmental protection |
| Maintenance-Free | No oil level monitoring or replacement | Significantly reduces maintenance costs |
| Improved Thermal Stability | Enhanced thermal performance | Better than traditional LB oil-immersed transformers |
| Fire Safety | No flammable oil | Enhanced fire safety for substations |
| Environmental Friendly | No oil disposal requirements | More sustainable and eco-friendly |
| Unattended Substation Suitable | Minimal maintenance requirements | Ideal for remote unattended installations |
| Feature | LZZBW-10(GY) Dry Type | LB Oil-Immersed |
|---|---|---|
| Insulation Medium | Epoxy resin (oil-free) | Insulating oil |
| Fire Hazard | No (oil-free) | Yes (flammable oil) |
| Oil Leakage Risk | No | Yes |
| Maintenance Requirements | Minimal (maintenance-free) | Regular oil monitoring and replacement |
| Thermal Stability | Improved | Standard |
| Environmental Impact | Low (no oil disposal) | Higher (oil disposal required) |
| Unattended Substation Suitability | Excellent | Limited |
| Weight | Lighter | Heavier |
| Pollution Class | Description | Typical Environment | Application |
|---|---|---|---|
| Class II | Medium pollution | Industrial areas, suburban areas | Industrial substations, suburban distribution networks |
| Unattended Substation Feature | LZZBW-10(GY) Advantage | Benefit |
|---|---|---|
| Oil-Free Operation | No oil monitoring required | Reduces remote monitoring complexity |
| Maintenance-Free | Minimal maintenance needs | Reduces site visit frequency |
| Fire Safety | No fire hazard from oil | Enhanced safety for unattended operation |
| Reliability | Improved thermal stability | Reduced failure rates |
| Remote Monitoring Compatibility | Stable operation | Ideal for SCADA systems |
Bepto is a leading Chinese company in electrical insulation, focused on developing advanced solutions for future power systems. We support transmission and distribution safety and growth, with long-term partners including State Grid, ABB, Schneider, Siemens, and GE. Our services reach clients in over 22 countries.
Bepto focuses on the global market and provides our clients with products suitable for the local market:
Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
