Testing a power transformer involves a combination of electrical, mechanical, and insulation diagnostics. Typical tests include winding resistance, turns ratio (TTR), insulation resistance (IR/PI), dielectric power factor (tan-delta), FRA/SFRA for core and winding displacement, leakage impedance, partial discharge assessment, and OLTC functional tests. Oil-filled units also undergo dissolved gas analysis (DGA), moisture measurements, and thermographic inspections. These tests evaluate insulation integrity, mechanical stability, core losses, and operational readiness before commissioning or after abnormal events.

Routine: ratio, resistance, IR, tan-delta, vector group, impedance, heat run; Type: impulse; Special: PD, FRA, sound level.

Built on a trailer chassis with hose drums fitted with electric reel drives, the CMM-G is fully mobile and suitable for deployment across a wind farm. The unit can be powered by an onboard generator when grid connection is unavailable, allowing service crews to reach turbines in remote locations without external power.

The control cabinet allows operators to monitor and adjust key process parameters like vacuum level, temperature, and timer settings. It integrates control of pneumatic drives, heating systems, vacuum pumps, and safety interlocks. In automated configurations, it can store drying profiles and reduce human error by managing sequences based on predefined criteria.

HV transformers require cables rated for insulation level, fault current, temperature rise, and bending radius. Improper cable selection risks partial discharge, overheating, and failure.

GlobeCore offers a range of colloid mills with different capacities depending on the model and application. Their throughput varies from small laboratory units to industrial-scale machines: smaller colloid mills for lab or low-volume work might handle about 0.1-1 m³/h, mid-range models like the CLM-2/4 can process around 2-4 m³/h, larger industrial units such as the CLM-8/16 have capacities of 8-16 m³/h, some high-throughput models, like the CLM-18, are rated up to about 18 m³/h. So the approximate maximum capacity in GlobeCore’s standard portfolio is on the order of ~18 m³ per hour for a single mill in continuous operation, with larger or customized systems possible depending on specific requirements.

Field tests include IR scans, oil DGA, PD detection, and relay testing, with results compared to factory baselines.

Catalogues list product ranges, ratings, voltages, cooling types, standards, tap options, accessories, monitoring modules, dimensional data and service support. They guide selection for engineering projects.

The TOR-3 Tan Delta Tester measures dissipation factor and resistivity of insulating fluids according to IEC 60247. We’ll include pricing and standard delivery time.

The transformer oil color tester determines the color index of insulating oil according to ASTM D1500. We will provide a quotation and technical datasheet for the requested equipment.