Primary injection testing device DDG-1000A

currentshort-circuitautomatic

Product overview
The DDG Primary Current Injector Test Set is a high-current test device used to generate controlled large currents for safety testing, CT calibration, temperature-rise and laboratory experiments in power systems.

Product Features

• Two ammeters for wide-range current monitoring.
• Adjustable autotransformer for fine output regulation.
• Status indicator lamps and push-button controls for straightforward operation.
• Integral or separable (fission) construction options to facilitate transport and handling.

Main applications

• Thermal and dynamic stability testing of circuit breakers, switches and contactors.
• Calibration and ratio testing of current transformers (CTs).
• Temperature-rise tests for busbars, bushings and cable terminations.
• Setting and verification of relay protection devices.
• Scientific research and laboratory experiments requiring high current sources.

Technical parameters (series examples)

• DDG-500 — capacity: 3 kVA; V1: 220 V; A1: 15 A; V2: 6 V; A2: 500 A; dimensions (mm): 430×338×550; weight: 48 kg; structure: integral.
• DDG-1000 — capacity: 6 kVA; V1: 220 V; A1: 27 A; V2: 6 V; A2: 1000 A; dimensions (mm): 500×380×600; weight: 80 kg; structure: integral.
• DDG-2500 — capacity: 15 kVA; V1: 380 V; A1: 39.5 A; V2: 6 V; A2: 2500 A; dimensions (mm): 600×430×790; weight: 145 kg; structure: integral.
• DDG-4000 — capacity: 24 kVA; V1: 380 V; A1: 63 A; V2: 6 V; A2: 4000 A; dimensions (mm): 640×450×820; weight: 180 kg; structure: integral / separable.
• DDG-5000 — capacity: 30 kVA; V1: 380 V; A1: 79 A; V2: 6 V; A2: 5000 A; dimensions (mm): 600×430×900 & 300×500×500 (two-piece option); weight: 145 & 135 kg; structure: separable.
• DDG-6000 — capacity: 36 kVA; V1: 380 V; A1: 95 A; V2: 6 V; A2: 6000 A; dimensions (mm): 600×430×900 & 300×500×500; weight: 150 & 140 kg; structure: separable.
• DDG-8000 — capacity: 48 kVA; V1: 380 V; A1: 126 A; V2: 6 V; A2: 8000 A; dimensions (mm): 600×450×950 & 350×550×550; weight: 180 kg; structure: separable.
• DDG-10000 — capacity: 60 kVA; V1: 380 V; A1: 158 A; V2: 6 V; A2: 10000 A; dimensions (mm): 800×600×1100 & 380×550×600; weight: 200 kg; structure: separable.