Transformer oil inevitably absorbs moisture, gas, and particulate impurities during long-term operation. These contaminants severely reduce the oil's insulation performance, thereby weakening the transformer's internal insulation strength. When insulation performance drops to a critical value, it m

When conducting transformer turns ratio and group tests in the field, several common problems repeatedly arise: single-phase phase-by-phase testing requires separate measurements of phases A, B, and C; slight differences in contact resistance during the three wiring operations can reduce the lateral

Recently we finished the production of two sets GDGS 12KV Transforme tan delta tester and two sets GD-3045E 10KV Insulation resistance tester. and already arranged the shipment to our customers.GDGS 10kv transformer tan delta tester is the latest color screen design. The operation is simpler and mor