Current transformer (CT) / voltage transformer (PT) calibration tester
Full Automatic Transformer Test Equipment(Cabinet shape)

Main Features:

♦ Human-machine interaction. 320X240-lattice LCD, displaying working state and operation direction in Chinese, which is legible and neat;

♦ Optional 8~12 CT test frame (with non-through standard current transformer inside);

♦ Able to measure tolerance at all measuring points automatically required by JJG313-94/JJG314-94 without the aid of PC.

♦ Double hardware protection and polarity protection for all operations. In emergency, protection switch can stop present operation.

♦ Withstand voltage expandable without adding hardware.

♦ Connected with PC, able to run data communication and processing software under Windows 95/98, to save, search and print data, to sort out tolerance and to count test plans.

♦ Manual protection in emergency: In case of emergency, pressing protection button will disconnect input of voltage regulator.

♦ Automatic protection for reversed polarity: Matching with HN-2K01B Full Automatic Transformer Tester, if polarity is reversed, voltage regulator will reset automatically, with sound indication and state display.

♦ Monitor of output voltage and current:

Operator can view output voltage and current directly on the controller display.

♦ Communication:

a Able to communicate with PC through serial communication interface, receive control command from PC, thus realize automatic measuring.

b Able to be connected with customer’s database for data processing.

Main Functions:

♦ Output Voltage Adjustment:

Manual Adjustment Range: Voltage (%): 1~120

Current (%): 1~120

Auto-adjustment Point: Voltage (%): 20, 50, 80, 100, 120

Current (%): 1, 5, 20, 100, 120

♦ Automatic Protection of Over-current:

a In case of over-current at a certain measuring point, rough and fine voltage regulator will reset automatically, with sound indication and state display.

b In case output current exceeds rated value, over-current protection switch will disconnect automatically.

Specifications:

♦ Power Supply: AC 220V±10% (5kVA, 10kVA)

♦ Maximum Output Power: 5kVA (expandable to 10kVA)

♦ Auto-stabilizing Point: Voltage (%): 20, 50, 80, 100, 120

Current (%): 1, 5, 20, 100, 120

♦ Over-current Protection Range: ≥20A

♦ 2.0% or 1.0% transformer regulator, matching with 0.05%~0.005% standard transformers, is able to test 0.5%~0.02% transformer and meet all criteria by the code.

♦ Power Consumption: 22VA

♦ Dimension: 1070mm(width) x 1050mm (height) x 580mm (depth)

♦ Total Weight: About 170KG