Serial number

Exception description

Treatment

Treatment measures

1

Tank partial oil leakage, oil level visible

Site processing

Check to confirm leakage, plugging, fill the oil

2

The electromagnetic unit oil level exceeds the upper limit

Site processing

For the products put into operation if the secondary voltage fluctuations at the same time, contact the manufacturer service department;
For non-commissioned products, remove the next section of the divider expansion device cover, check whether the expansion of the normal expansion of the state, if any abnormal contact factory services

3

Transformer abnormal noise, odor or vibration, there is abnormal voltage display

Site processing

Check the secondary wiring, to ensure that no secondary wiring short circuit, N, XL reliable grounding

4 

Site processing

Remove the secondary wiring board at the pollution and wipe clean with alcohol, can not be restored, please contact the manufacturer Service

5 

Site processing

Check the test methods, lines and equipment, if the test is no exception to contact the manufacturer service department

6

Other exceptions

/

Please contact the manufacturer's service department

Serial number

Exception description

Treatment

Treatment measures

1

Current transformer oil leakage, oil level visible

Site processing

Check to confirm leakage, plugging, fill the oil

2

Put the oil level above the upper limit

Site processing

Put the oil to the right level

3

The transformer has an abnormal sound

Site processing

Check the secondary wiring, to ensure that the secondary wiring is no open, no virtual access

4

DC resistance abnormal 

Check the test wiring, clean the clamping part of the oxide layer, retest

5

Current ratio test is abnormal

Site processing

Check a series-parallel connection, check the test wiring, improve the test current

6

Expander (cover) from the top

Replace the product

Exit immediately

7

Other exceptions

/

Please contact the manufacturer's service department

Serial number

Exception description

Treatment

Treatment measures

1

Treatment measures

Site processing

1, the controller to remove the check, if the replacement of the controller;
2, product leakage, such as the existence of leakage fault, please contact the manufacturer services.

2

SF6 PT operates with secondary discharge sound

Site processing

Check whether the circuit short-circuit phenomenon, the secondary voltage is abnormal, unused winding is open.

3

SF6 PT low resistance to ground insulation

Site processing

Check the insulation casing surface is dirty or damp, clean again after treatment.

4 

Site processing

If the measurement error at the control cabinet will increase the system error caused by the lead voltage drop from the SF6 PT secondary wiring board to the HSBC cabinet, the SF6 PT error test will not be carried out. qualified. It is required to carry out error test at SF6 PT secondary wiring board to reduce systematic error.

5

SF6 PT after the operation of the third harmonic, and the three-phase third-harmonic amplitude is basically the same, the phase is identical, open-triangle output voltage is essentially zero.

Site processing

Check the secondary circuit, the existence of virtual line virtual connection.

6

A group of JDQX-35 products (3) a secondary output voltage is low, and the opening triangle abnormal voltage

Site processing

Substation power failure to carry out the following pilot projects:
1, test each phase PT A-N DC resistance is normal.
2, test the fuse DC resistance of each phase is normal.

7 

Site processing

Substation power failure to check the three-phase PT residual winding connection meets the requirements (three remaining winding requirements of the first and last connection).

8

Rupture disk

Replace the product

Exit immediately

9

Other exceptions

/

Please contact the manufacturer's service department

Serial number

Exception description

Treatment

Treatment measures

1

Site controller alarm

Site processing

1, the controller to remove the check, if the replacement of the controller;
2, product leakage, such as the existence of leakage fault, please contact the manufacturer services.

2

Current ratio test is abnormal

Site processing

Check a series-parallel connection, check the test wiring, improve the test current

3

Rupture disk Replace the product

Replace the product

4

Other exceptions

/

Please contact the manufacturer's service department

Serial number

common problem

Treatment

solution

1

Products than the test correct, after the installation of secondary current anomalies

Site processing

1, check the transformer secondary terminal of the lead wire is burr lap;
2, check the transformer body to the circuit breaker (switchgear) terminal box wiring is correct;

2

Generator outlet (into the line cabinet) bus-type transformer and a copper discharge transformer

Site processing

Check whether the transformer shield wire is firmly fixed with the primary copper wire

Serial number

common problem

Treatment

solution

1

Open delta voltage is not correct

Site processing

Check the three-phase voltage transformer residual winding wiring is connected end to end

2

Fuse frequent fuse

Site processing

1, check the secondary circuit for short circuit;
2, re-measured transformer excitation characteristics;