Digital Inverter DC Relay Protection Calibrator

The GDJB‑III is a precise digital inverter calibrator designed to simulate DC signals for on-site testing and calibration of protection relays and electrical systems.

The GDJB‑III Digital Inverter DC Relay Protection Calibrator is engineered for comprehensive testing, calibration, and maintenance of protection relays, metering records, and current/voltage transformers. It offers programmable DC output with high accuracy, stability, and repeatability. Equipped with a digital display, remote control functionality, automatic measurement capability, and robust safety protections, the GDJB‑III supports field operations in substations, utility maintenance, and power plant commissioning. Certified with CE and ISO, it complies with international standards like IEC 60255 and IEEE C37.X for relay testing equipment.


Key Features:

  • Programmable DC output for relay calibration

  • High accuracy, stability & repeatability

  • Interfaces: Digital display, remote control, USB output

  • Built-in safety for overload, short-circuit, and over-voltage protection

  • Portable and rugged for field environments

  • Compliant with IEC 60255, IEEE C37 standards

  • CE and ISO certified


Product Table (English)

Model Number Output Type Interfaces Certifications Functions Prices
Model 1: GDJB‑III DC Inverter Display, Remote, USB CE, ISO Certified Relay protection testing, CT/VT calibration, metering verification $3,500 → 13,125 SAR (≥ 1 piece)

Images may vary slightly from the actual product depending on the model. Please review the description before ordering.

14٬245٫00 ر.س.‏
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The GDJB‑III Digital Inverter DC Relay Protection Calibrator is engineered for comprehensive testing, calibration, and maintenance of protection relays, metering records, and current/voltage transformers. It offers programmable DC output with high accuracy, stability, and repeatability. Equipped with a digital display, remote control functionality, automatic measurement capability, and robust safety protections, the GDJB‑III supports field operations in substations, utility maintenance, and power plant commissioning. Certified with CE and ISO, it complies with international standards like IEC 60255 and IEEE C37.X for relay testing equipment.


Key Features:

  • Programmable DC output for relay calibration

  • High accuracy, stability & repeatability

  • Interfaces: Digital display, remote control, USB output

  • Built-in safety for overload, short-circuit, and over-voltage protection

  • Portable and rugged for field environments

  • Compliant with IEC 60255, IEEE C37 standards

  • CE and ISO certified


Product Table (English)

Model Number Output Type Interfaces Certifications Functions Prices
Model 1: GDJB‑III DC Inverter Display, Remote, USB CE, ISO Certified Relay protection testing, CT/VT calibration, metering verification $3,500 → 13,125 SAR (≥ 1 piece)

Images may vary slightly from the actual product depending on the model. Please review the description before ordering.

Products specifications
Attribute name Attribute value
Warranty Product warranty