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- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDSP-S is a high-precision, fully digital three-phase AC/DC programmable standard source designed as the metrology-grade reference for calibrating energy meters, power quality analyzers, protective relays, and LV instrument transformers. Built on 32-bit DSP + FPGA + hardware PID control, it delivers 0.05% accuracy and 0.01%/3min stability across voltage, current, frequency, and phase.
It provides independent adjustment of amplitude, phase, and frequency for each phase (A/B/C), supporting 2nd–21st harmonic synthesis and arbitrary phase shifting to simulate faults like short circuits, voltage sags, and harmonics. The 7” industrial TFT touchscreen enables intuitive operation, while USB/RS232 interfaces support PC control and data logging. With all-aluminum EMC shielding and fanless design, it ensures reliable performance in labs and harsh field environments.
Specifications
| Parameter | Specification |
| Voltage Output | 0–120V；1mV resolution；±0.05% accuracy；15VA/phase |
| Current Output | 0–6A；0.1mA resolution；±0.05% accuracy；15VA/phase |
| Frequency | 45–65Hz；0.001Hz resolution；±0.001Hz accuracy |
| Phase Angle | 0°–360°；0.01° resolution；±0.05° accuracy |
| Harmonic Output | 2nd–21st order；single/multiharmonic superposition |
| Stability | ≤±0.01%/3min (V/I)；±0.0005Hz/3min (frequency) |
| Distortion (THD) | ≤0.05% (voltage/current) |
| Display | 7” color TFT touchscreen；waveform/vector/harmonic display |
| Communication | USB 2.0 + RS232；PC remote control & data export |
| Power Supply | AC 220V ±10%；50/60Hz |
| Dimensions | 426×350×150mm (19” rack) |
| Weight | ~9.8kg |
| Operating Temp | 10°C ~ +50°C |
| Compliance | DL/T 2213.1, IEC 61869, CE |
Applications
Core Calibration Objects
· Energy meters: 1-phase/3-phase;active/reactive;0.2S/0.5S class
· Power analyzers: Power quality, harmonic, and energy measurement devices
· Protective relays: Over-current, differential, distance, and voltage relays
· LV instrument transformers: 5A CTs and 100V PTs ratio/error calibration
· Test equipment: Multimeters, power meters, phase meters, and calibrators
Typical Usage Scenarios
· Metrology labs: National/provincial metrology institutes, electric power research institutes
· Meter manufacturers: Production line calibration & quality control
· Power utilities: Field calibration of meters/relays in substations
· R&D & education: Power system simulation, harmonic research, and training
· Industrial plants: Calibration of on-site power monitoring equipment
Advantages
Metrology-Grade Accuracy & Stability
0.05% accuracy + 0.01%/3min stability → laboratory precision for on-site use
Full Independent Three-Phase Control
A/B/C amplitude/phase/frequency fully adjustable → simulate any power system operating condition
Harmonic Synthesis & Fault Simulation
21st harmonic output + arbitrary fault waveforms → comprehensive power quality testing
Portable Lab-Grade Performance
9.8kg lightweight + 19” rack-mountable → flexible for both lab bench and field service
All-Weather Reliability
Fanless + EMC shielding + wide temp range → stable operation in harsh substation environments
FAQ
Q: Can it calibrate both energy meters and protective relays?
A: Yes. It supports energy meter calibration (pulse output) and relay testing (fault simulation).
Q: Does it support harmonic output for power quality testing?
A: Absolutely. It can output 2nd–21st harmonics individually or in superposition.
Q: Is it suitable for both laboratory and field use?
A: Yes. 9.8kg lightweight and rack-mountable design make it ideal for both scenarios.
Q: What interfaces are available for PC control?
A: USB 2.0 and RS232 are standard;PC software enables remote control and report generation.
Q: What’s included in the standard package?
A: Main unit, voltage/current output cables, USB drive with PC software, power cord, user manual, hard carry case.
