EN
GD6300 High-Capacity Variable Frequency Dielectric Loss Tester
GD6300 Digital Intelligent High-Capacity Variable Frequency Dielectric Loss Tester (0.5-18kV Output, 5000VA Capacity) with 45/50/55Hz Anti-Interference Technology, Built-in SF6 Standard Capacitor, Multiple Test Modes, for GIS, Long XLPE Cable, Large Capacitor Bank, Power Transformer Bushing Insulation Test.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GD6300 is a professional, high-power dielectric loss test instrumentexclusively designed for insulation condition assessment of large capacitive high-voltage power equipment. It fully complies with DL/T 474.3-2018 and IEC 60247:2004 standards, adopting a 5000VA high-power variable frequency power supply and full-digitized sampling technology to solve the problem of insufficient test capacity for large capacitive test objects such as GIS and long cables.
The instrument features an integrated all-in-one design with a built-in high-power variable frequency power supply, step-up transformer and SF6 high-stability standard capacitor (temperature coefficient <1ppm/℃), eliminating the need for external standard capacitors and power supplies. Equipped with a 7-inch high-resolution color touch screen and intuitive graphical interface, it supports six test modes: forward connection, reverse connection, CVT self-excitation, external voltage application, GST and UST. It can automatically measure dielectric loss factor (tanδ), capacitance (Cx), power factor (PF) and equivalent resistance (R), and generate standardized test reports. With comprehensive safety protection and portable design, it is suitable for both on-site testing and laboratory use. Ideal for factory acceptance tests, on-site commissioning tests and preventive maintenance tests of GIS, long XLPE cables, large capacitor banks, power transformers, bushings, instrument transformers, CVTs and surge arresters.
Specifications
| Parameter | Specification |
|---|---|
| High-Voltage Output | 0.5kV – 18kV AC (RMS), continuous adjustable, 0.1kV step |
| Rated Output Capacity | 5000VA |
| Maximum Output Current | 500mA @ 10kV, 278mA @ 18kV |
| Test Frequencies | 45Hz, 50Hz, 55Hz (automatic dual-frequency synthesis) |
| Frequency Accuracy | ±0.01Hz |
| Output Waveform Distortion | <1% (THD) |
| Dielectric Loss (tanδ) Accuracy | ±(1.0% of reading + 0.04%) |
| Capacitance (Cx) Accuracy | ±(1.0% of reading + 1.0pF) |
| Measurement Range | tanδ: 0 – 100% Cx: 15pF – 500nF (5kV), 15pF – 160nF (10kV), 15pF – 55nF (18kV) |
| Resolution | tanδ: 0.001%, Cx: 0.001pF |
| Built-in Standard Capacitor | SF6 gas-insulated, 100pF, temperature coefficient <1ppm/℃, stability <0.01%/year |
| Test Modes | Forward connection, Reverse connection, CVT self-excitation, External voltage, GST, UST, Inner standard, External standard |
| Display | 7-inch high-resolution color touch screen |
| Data Storage | 200 groups (with time stamp, power-off protection) |
| Data Export | USB interface, PDF/Excel report generation |
| Language Support | Chinese/English bilingual |
| Power Supply | AC 220V±10%, 50Hz (supports generator power supply) |
| Protection Functions | Over-voltage, Over-current, Short-circuit, Automatic discharge, Ground detection, Input voltage fluctuation protection |
| Dimensions (mm) | 460×335×340 (L×W×H) |
| Weight | ~28kg |
| Operating Temperature | -15℃ ~ +40℃ |
| Operating Humidity | ≤80%RH (non-condensing) |
| Altitude | ≤2000m |
| Compliance | DL/T 474.3-2018, IEC 60247:2004, GB/T 5654-2007, IEC 60076-1:2022 |
Applications
Core Test Objects
- GIS gas insulated switchgear: 10kV-220kV GIS and HGIS equipment
- Long distance XLPE power cables: 10kV/35kV XLPE power cables (up to 5km)
- Large capacity capacitor banks: shunt capacitor banks, series capacitor banks
- Large transformer bushings: 110kV-220kV oil-impregnated paper bushings and epoxy resin bushings
- Capacitor voltage transformers (CVT): C1 and C2 capacitance and tanδ test (self-excitation method)
- Instrument transformers: current transformers (CT) and voltage transformers (VT)
- Surge arresters: metal oxide surge arresters
- Power transformers: winding dielectric loss and capacitance test
Typical Usage Scenarios
- Power companies: on-site commissioning and preventive maintenance tests of substation GIS and long cables
- Transformer manufacturing plants: factory acceptance tests (FAT) of large transformers and bushings
- GIS manufacturing plants: factory type tests and outgoing quality control of GIS equipment
- Third-party testing institutions: compliance testing and certification of large power equipment
- Power plants: generator transformer and auxiliary equipment insulation tests
- Mining and industrial enterprises: high-voltage equipment inspection and maintenance
Advantages
Compliance with International Standards
Fully meets DL/T 474.3-2018, IEC 60247:2004 and GB/T 5654-2007 standards → test results are globally recognized
5000VA High-Capacity Output
Solves the problem of insufficient test capacity for large capacitive test objects → can test GIS, long cables and large capacitor banks that cannot be tested by ordinary dielectric loss testers
18kV High-Voltage Output
Covers the test voltage requirements of most 110kV-220kV power equipment → one instrument meets the test needs of multiple voltage levels
Variable Frequency Anti-Interference Technology
Effectively eliminates 50Hz power frequency interference → obtains reliable test results even in strong electromagnetic environments
Built-in SF6 Standard Capacitor
High stability and low temperature coefficient → ensures long-term measurement accuracy, no need for external standard capacitors
Multiple Test Modes
Supports all common dielectric loss test modes → one instrument covers all test requirements for large power equipment
Fully Automatic Operation
One-click test execution, automatic data processing and report generation → reduces operator skill requirements, improves test efficiency
Portable & Rugged Design
28kg lightweight design with rugged chassis → easy to carry and operate on-site
Comprehensive Safety Protection
Multiple protection layers + ground detection + automatic discharge → maximum safety for operators and expensive test equipment
FAQ
Q: What is the difference between GD6300 and GD6900?
A:
- GD6300 (High-Capacity): 5000VA output capacity, 0.5-18kV high-voltage output, 500nF maximum capacitance test range, optimized for large capacitive test objects such as GIS, long cables and large capacitor banks
- GD6900 (Multi-Function): 2000VA output capacity, 0.5-10kV high-voltage output, 300nF maximum capacitance test range, integrated insulation resistance, LCR and CVT ratio test functions, optimized for all-in-one on-site insulation testing of general power equipment Both use variable frequency anti-interference technology and built-in SF6 standard capacitors, meeting DL/T 474.3-2018 standards.
Q: What is the maximum capacitance test object that GD6300 can test?
A: GD6300 can test up to 500nF @ 5kV, 160nF @ 10kV and 55nF @ 18kV, which covers the test requirements of most 10kV-220kV GIS, long XLPE cables and large capacitor banks.
Q: Can GD6300 test GIS and long XLPE cables?
A: Yes. It is specifically designed for large capacitive test objects. The 5000VA high-capacity output can provide sufficient test current for GIS and long cables, ensuring accurate and stable test results.
Q: Does it support CVT self-excitation test?
A: Yes. It supports the CVT self-excitation method, which allows testing of C1 and C2 capacitance and tanδ without disconnecting the CVT from the busbar, greatly reducing test time and avoiding equipment damage.
Q: What test modes does GD6300 support?
A: It supports six test modes: forward connection, reverse connection, CVT self-excitation, external voltage application, GST (grounded specimen test) and UST (ungrounded specimen test), as well as inner standard and external standard modes.
