Test power supply panel (box)

The type PGY relay protection testing power supply panel is our company according to the Department of energy "power plant, substation and relay protection testing instrument configuration quota", "relay protection test regulations" and the Ministry of power industry "issued by the power system relay protection and security automatic equipment anti accident measures" the relevant provisions of the key points of design and manufacture of products. Provides AC and DC test power supply is reliable, stable, convenient for testing relay protection field, in order to improve the quality of relay protection testing, to ensure personal safety equipment, to provide a reliable guarantee.
This equipment is suitable for power plants, substations and large and medium-sized industrial enterprises, can be used as relay protection test power standard.
• product features:
1, the dual power supply, manual, automatic switching. Using the contactor can load switch, ensure the reliability of power supply.
2, the AC power supply with large capacity transformer isolation, the power and the test power system isolation, and in between the primary and the secondary adding shielding layer, so that the test power from the transient process of power grid and other harmonic interference. Transformer using △ /Y0 connection mode, greatly weakened the three harmonic, ensure the quality of power supply.
3, the DC power supply can be continuously and smoothly adjust voltage, in order to meet the needs of different test items;
Control 4, AC power supply adopt DZ47-60 type automatic switch, it moves quickly, long service life, a short circuit, overload automatic tripping function.
5, the output AC power supply is provided with a leakage protection switch, ensure the safety of personnel. The switch has the advantages of stable performance, high sensitivity, reliable action, with a short circuit, overload automatic tripping function.
6, the use of DC DC circuit breaker, it moves quickly, long service life, a short circuit, overload automatic tripping function.
• technical parameters:
The 1 part, communication
1.1 of the rated input voltage: three-phase 220V/380V, frequency 50Hz. ;
1.2 the rated output voltage: 220V/380V, three-phase four wire, three output;
58V/100V, a three-phase four wire, three output.
1.3 three-phase input output balance, imbalance of less than 1%.
1.4 three harmonic component is less than 3%.
1.5 input transformer capacity of 15kVA, work in eight hours under the condition, the maximum output current is 3 × 22.8A.
2, the DC part
The 2.1 power supply input AC three-phase 380V;
2.2 the output DC voltage of 0 ~ 250V continuously adjustable, three road output;
2.3 rectifier transformer capacity of 5kVA, work in eight hours under the condition, the maximum output current of 20A;
The 2.4 output DC ripple coefficient K<1.5%.