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Transformer Electrical Test Instrument OLTC On Load Tap Changer With USB

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Transformer Electrical Test Instrument OLTC On Load Tap Changer With USB

Brand Name : AI

Model Number : OLTC-II

Certification : ISO

Place of Origin : China

MOQ : 1 Set On Load Tap Changer Test Instrument

Price : Negotiable

Payment Terms : T/T, Western Union, L/C

Supply Ability : 1000 sets per month

Delivery Time : 15 days

Packaging Details : On Load Tap Changer Test Instrument packed in Plywood case

Power supply : 230V±10%, 50HZ±1Hz

Display : 800×480 colorized LCD touch screen

Measuring range : 1A:0.4Ω~20Ω; 0.2A:10Ω~100Ω

Maximum voltage of the port : 24V

Maximum range of transition resistance : 100Ω

Warranty : 1 Year

Format of result : WORD

Data storage : 1000 groups

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Transformer On-load Tap Changer Test Instrument

I. Introduction:

The on load tap changer test instrument can record switch operation waveform in overall process. The longest time is 6.4s.It can test various parameters such as transition waveform, transition time, transition resistance and three phase synchronization one time and analyze results automatically. It has power-off protection, over-voltage protection, perpetual clock and high-speed printing.

II.Main Features

1. Test transformers of type Y0 Y Δ and display resistance value directly;
2. Automatically analyze waveform fault and mark the fault;
3. Automatically adjust resistance value and time range according to sampling data;
4.Transformer type Δ is able to display to synchronization status of three phase;
5. The OLTC test instrument is able to test with winding or without winding;
6. Four terminal connection mode and provide high accuracy of resistance measurement.
7. Continuous test to save time of power off
8. This on load tap changer test instrument can produce word report
9. 800×480 colorized LCD with touch screen and high speed printer are designed with OLTC on load tap changer tester.
10. Store 1000 groups of data and also can be saved by USB flash disk.

Transformer Electrical Test Instrument OLTC On Load Tap Changer With USB

III. Specifications:

1	Three phase constant current source charge,charge current	3A/1A; 0.6A/0.2A
2	Maximum voltage of the port	24V
3	Maximum range of transition resistance	100Ω
4	Measuring range	1A:0.4Ω~20Ω 0.2A:10Ω~100Ω
5	Record time of waveform	300ms
6	Sample rate	30K
7	Resolution of time	0.1ms
8	Resolution of resistance	0.1Ω
9	Accuracy of transition resistance	±5% Reading±0.1Ω
10	Accuracy of transient time	±0.5% Reading±0.2mS
11	Temperature	-10-40°C Humidity: <85%RH

IV.Accessories List

Test cable

Ground cable

Power cable

The mouse

U flash disk with PC software

V.Opeation introduction

①.The winding of transformer could be connected in the test circuit but all the external power source should be removed before make connection with the tester and sample transformer.

②.No testing windings of transformer should be short connected to the earth grounding while the terminal O shouldn’t be connected to the earth grounding；

③. If the tap changer hasn’t been operated for a long time Please clean the oxid layer and impurity by move the tap changer multi times.

④. Please be sure that the tester has been connect to the earth grounding reliable before run the tester.

⑤. Please don’t measure more than two groups of test line in one group measurement；

⑥. It’s forbidden to cut off the test connection when tester running.

⑦．Please turn off the tester first and then remove the test connections.

VI.Sample test result:

	T0(ms)	T1(ms)	T2(ms)	T3(ms)	T4(ms)	R0(Ω)	R1(Ω)	R2(Ω)
A phase	0.0	19.9	5.1	19.9	44.9	0.8	5.1	5.0
B phase	0.0	19.9	5.1	19.9	44.9	0.8	5.0	5.0
C phase	0.0	19.9	5.1	19.9	44.9	0.9	5.0	5.0

Transformer Electrical Test Instrument OLTC On Load Tap Changer With USB

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