High Voltage Insulation Equipment
LGTB Dry-Type AC/DC Hipot Test Set
Next-Generation Portable Test Transformer
This maintenance-free dry-type test transformer replaces traditional oil-filled units, providing AC/DC high voltage output for electrical strength testing of power equipment, insulation tools, and industrial products. The compact design weighs 60% less than conventional test transformers.
Product Parameter
technical parameters
impedance voltage | ≤12% |
output voltage wave form | sinusoid |
surface temperature rise | <55℃ |
no-load current | <4% |
Main product specifications
specifications and models | capacity(kVA) | input voltage(V) | output voltage(kV) | output current(mA) | Output DC high voltage | weight(kg) |
1.5/50 | 1.5 | 200 or 400 | 50 | 30 | 70 | 15 |
5/15 | 5 | 333 | 15 | |||
3/50 | 3 | 60 | 20 | |||
5/50 | 5 | 100 | 27 | |||
6/50 | 6 | 120 | 30 | |||
10/30 | 10 | 333 | 30 | |||
10/50 | 10 | 200 | 40 | |||
15/50 | 15 | 300 | 50 | |||
20/50 | 20 | 400 | 55 | |||
25/50 | 25 | 500 | 60 | |||
30/50 | 30 | 600 | 65 | |||
15/25 | 15 | 220 | 25 | 600 | 200 | 72 |
5/100 | 5 | 200 or 400 | 100 | 50 | 140 | 60 |
10/100 | 10 | 100 | 65 | |||
10/120 | 10 | 120 | 70 | |||
15/100 | 15 | 150 | 75 | |||
20/100 | 20 | 200 | 75 | |||
25/100 | 25 | 250 | 80 | |||
15/120 | 15 | 120 | 125 | / | 120 | |
20/120 | 20 | 160 | 130 | |||
25/120 | 25 | 200 | 140 | |||
30/120 | 30 | 250 | 150 |
Key Applications
Utility Field Testing: On-site cable and switchgear tests
Manufacturing QC: Electrical product compliance testing
Laboratory Use: Insulation material R&D
Maintenance Teams: Portable equipment verification
Product Advantages
vs Traditional Oil-Filled Transformers:
Feature | LGTB Dry-Type | Conventional Units |
---|---|---|
Weight | Reduced by 60% | Bulky |
Maintenance | Not required | Regular oil checks |
Portability | Field-ready | Fixed installation |
Safety | No flammable oil | Oil fire risk |
Technical Features
1. Compact Engineering
60% smaller footprint than oil-filled units
Ergonomic handles for transport
2. Dual Output Modes
AC output: 0-100kV (standard)
DC output: With high-voltage silicon stack
3. Intelligent Protection
Overcurrent auto-shutdown
Short circuit protection
4. Simplified Operation
Color-coded terminals
Single-cable connections
Standard Configuration
Dry-type test transformer (5kVA base model)
Control console with digital metering
High-voltage silicon stack (for DC output)
Protective relay system
Microampere meter
Adjustable sphere gap
Design Standards
IEC 60076-11: Dry-type transformers
GB/T 16927: High-voltage test techniques
IEEE Std 4: Standard for HV testing
Why Professionals Choose LGTB
Time Savings: 80% faster setup than oil-filled units
Cost Effective: No oil maintenance expenses
Versatile: Cascade configuration for higher voltages
Reliable: Epoxy-encapsulated windings