Anhui Zhiping Electric Co., Ltd. to undertake the national enterprise technical services and power quality testing, power quality testing services including harmonics, flicker, three-phase unbalance, power factor and other power quality indicators test, and issue a test report.

In addition, the maintenance and inspection of power distribution room equipment are very important links, Anhui Zhipeng Electric Co., Ltd. after training, there are professional maintenance and inspection personnel, can escort the enterprise, Anhui Zhipeng Co., Ltd. has made the following system for the inspection of power distribution room.

I. Fixed switchgear inspection items of 10KV and below voltage levels:

1, the circuit breaker should immediately check the equipment in the cabinet is abnormal;

2. Observe the color change of the bus bar and the hardware or observe whether the temperature indicating wax sheet is melted by heat to determine whether the bus bar and various contacts are overheating;

3, instruments, signals, indicators and other indications are correct;

4. Whether the connection line of the grounding device is loose or broken:

5. Whether the relay and DC equipment operate normally;

6, there is no abnormal smell and sound in the switch room;

7, ventilation, lighting and safety fire protection devices are normal;

8, each porcelain bottle, sleeve is clean, there is no damage and discharge traces;

Ii. Transformer:

1, equipment name, mark complete, intact

2, the body thermometer value is consistent with the telemetry value

3, with the help of objects to listen to the sound in the body is no different

4. All parts of the body have no leakage

5, pressure relief valve no leakage

6, the body grounding body intact, no corrosion

7, the body and pressure regulating gas relay rain cover intact

8, body and gas relay peep window should be opened

Iii. Cable:

(1) Check whether the cable and terminal box have leakage oil, and whether the insulation glue is softened and spilled.

(2) Whether the insulator is clean and complete, whether there are cracks and flashover traces, and whether the lead joint is intact and does not heat.

(3) Whether the outer skin of the exposed cable is complete and whether the support is firm.

(4) Whether the skin is well grounded.

Iv. Inspection of vacuum circuit breaker

1, the opening and closing position indication is correct, and is consistent with the actual operating position.

2, circuit breaker and recloser indicator light is correct.

3, pillar insulator and sleeve have cracks or discharge phenomenon.

4. Whether the lead is moderate, whether the contact is good, and whether the wax sheet is melted.

5, circuit breaker support grounding is intact.

V. Dc power supply device inspection items

1, check the battery voltage value, whether the connection sheet loose and corrosion phenomenon, whether the shell leakage and deformation, insulation resistance is reduced.

2. For lead-acid and cadmium-nickel batteries, check the liquid level of each battery to see if there is leakage. If the liquid level is lower than the line, distilled water should be added and the specific gravity of the electrolyte should be adjusted within the qualified range.

3. For the charging device, check whether the three-phase AC voltage is balanced, whether the running noise is abnormal, whether the AC input voltage value, DC output voltage value, DC output current value and other meters are displayed correctly, and whether the positive and negative ground-to-ground insulation is good.

4. Check whether the various signal lights and sound alarm devices on the DC power supply device are normal.