The transformer comprehensive tester can output low-voltage three-phase sine wave inverters without external AC power supply to test transformer capacity. The instrument itself can provide working power for the test part without external power supply, which makes the test of transformer capacity more convenient and fast. The instrument is equipped with the function of monitoring the remaining battery power to prevent the battery from overdischarge and prolong the service life of the battery.

This instrument not only expands the scope of capacity test, but also visually shows the scope of reference national standards, making the test of transformer capacity more intuitive. It can be used for capacity testing and type judgment of SG and SC series dry-type distribution transformers, single-phase distribution transformers and single-phase special transformers (including single-phase arc furnace transformers).

When using external AC to test transformer capacity, the instrument is powered by external power supply and can work by connecting 220V AC power to charging input port. The instrument can be used in conjunction with external test power supply. No-load and load test of distribution transformer can be carried out according to the requirements of national standard, and the capacity and type of transformer can be determined.

Voltage range: 0-650V (RMS) error < 0.2% reading + 0.02% range)

Current range: 0-80A (RMS) error < 0.2% reading + 0.02% range) 

Power measurement: COS_= 0.5-1.0 error < 0.5% reading + 0.05% range)

                               COS_= 0.2-0.5 error < 1.0% reading + 0.1% range)

Volumetric measurement range:

6-11/0.4 kV     Power Transformer: 30-2500 kVA

6-11/3-6.3 kV    Power Transformer: 630-6300 kVA

35 kV     Power Transformer: 50-31500 kVA

60-66 kV     Power Transformer: 630-63000 kVA

110kV     Power Transformer: 6300-80000 kVA

SJ1/SJ2/SJ6    Power Transformer: 20-1800 kVA 

SJL1     Power Transformer: 30-1600 kVA

SG, SC/10kV     dry-type transformer: 30-1600 kVA

SG, SC/35kV     dry-type transformer: 50-31500 kVA 

D-type     single-phase transformer: 5-160 kVA

6-110 kV      Single-phase or Three-phase Special Transformer: 30-80000 kVA 

Type Judgment Range:

10 kV Power Transformers: S7, S9, S11, S13, S15, D9, D10, D11, SG (C) 8, SG (C) 9, SG (C) 10, SZ7, SZ9, SZ11, SJ1

35 kV Power Transformer: S7, S9, S11, SZ7, SZ9, SZ11

Working environment temperature: 0 - 40℃

Relative humidity: <85%

Instrument power supply: AC 187 V~242 V 

Instrument shape size: 330×250 ×50 (mm); weight: about 5kg

Rated output capacity of three-phase inverters: 200 VA

Rated Output Current of Three-phase Inverter Power Supply: 10A (RMS)

Rated output frequency of three-phase inverters: 50 +0.01 Hz

Battery rated voltage: 23.6 V

Battery capacity: 3.5 x 2 Ah

Charging power supply voltage: 220 + 20% (50Hz) V

Charging current: 1A

Trickle current charging current: <0.1A

The instrument can output three-phase sine wave inverters. Without external AC power supply, the transformer capacity test can be carried out, and the transformer capacity can be automatically judged.

The instrument can be operated with dual power supply. It can be powered by internal battery or external AC 220V power supply.

The instrument can judge the capacity of single-phase and three-phase electric arc furnace transformers and special transformers.

The instrument can judge the capacity of dry-type transformer and single-phase transformer.

S7, S9, S11, S13, S15, SZ7, SZ9, SZ11, D9, D10, D11, SG8, SG9, SG10, SC8, SC9, SC10, 10kV and 35kV transformer types can be judged.

In order to facilitate measurement and ensure the safety of transformer, the capacity of transformer can be measured by non-rated tapping.

The instrument can be used with single-phase transformer test power supply. The single-phase method is used to measure the single-phase characteristic parameters of three-phase transformer by three-phase separation, and calculate the three-phase characteristic parameters of transformer. The measurement results of three-phase separation are stored under the same serial number respectively, so that power failure is not lost.

The instrument can measure no-load loss, no-load current, load loss, impedance voltage and other parameters of transformer. At the same time, it can measure three-phase voltage, real effective value of current and active power. No-load test of transformer can automatically capture set point test data.

Range automatic switching, can connect CT, PT for large transformer measurement, all data display direct reading value.

No-load test can accurately measure parameters under set values without voltage correction.

Load test can measure the current at reduced current and automatically convert the current to rated value.

The instrument automatically converts the test results of load loss and impedance voltage to 75, 80, 100, 115, 120 and 145 C according to different types of transformers.

Large LCD full Chinese menu man-machine interface, tabular data management, Chinese character prompt easy to operate.

The instrument can automatically judge the rated capacity of the transformer according to the test parameters and calculate the deviation from the standard.