Technical Specifications:
Training Contents:

•  Single Phase Transformer:
•  Measurement of the single-phase transformer ratio and parameter by no-load and short-circuit experiment
•  drawing out of the T-type equivalent circuit diagram according to parameters to be measured from no-load and short circuit experiment
•  Measurement of the running characteristic of a transformer by resistive/inductive/capacitive load experiment
•  Parallel operation of a transformer (polarity discrimination, parallel two transformers)
•  Three Phase Transformer:
•  High / Low voltage winding discrimination, primary/secondary polarity measurement
•  Measurement of the three-phase transformer ratio and parameter by no-load and short circuit experiment
•  Three-phase transformer Y-Y12 connection
•  Three-phase transformer Y-Y6 connection
•  Three-phase transformer Y-Δ11 connection
•  Three-phase transformer Y-Δ5 connection
•  Voltage vector diagram of three-phase transformers under different connections

Features and Technical Specification:

• This trainer should be designed to meet the operational training of electrical transformers, covering a variety of training topics for single-phase and three-phase characteristics, as well as parametric measurement
•  The frame should adopt a standard aluminum profile with a modular experiment panel design, thus, making it easy to build different experiment combinations on the flexible two-layer structure
•  All the upper parts should be removable including the experiment module, power supply module, and frame support
•  All terminals should be led out on printed composite panels with 4mm safety sockets and connected by a fully sealed sheathed pluggable connector.
•  The complete unit should be movable with lockable trucks on the bottom
•  Mobile aluminum experiment stand:
•  High-compressed chipboard tabletop & baseplate
•  Solid impact-resistant protective edging
•  Minimum 6 extruded aluminum profiles with 8 grooves
•  Minimum 3 H-shaped profiles for panel organization
•  4 swiveling casters, 2 have brakes
•  Table & upper frame parts are separable for easy delivery
•  Cable holder should be attached to side column for at least 48 cable PCs
•  Three-phase power supply:
•  RCCB and momentary pushbutton with lamp, green/red
•  Key switch, 1NO/NC and AC contactor
•  Input CEE socket, output 4mm safety socket
•  Three-phase voltage regulators:
•  1KW regulator, 0 ~ 450V, 0 ~ 250V variable output
•  Indicating lamp R/G/Y
•  Output voltage monitoring meter x3
•  Selective input and output voltage display
•  Single phase transformer 1.0:
•  PN = 77W, UN = 220V/55V, IN = 0.35A/1.4A
•  Transformer x3
• With all terminals led to colorized 4mm safety socket
• Three-phase transformer 1.0:
•  PN = 200W, UN = 220V/55V, IN = 0.52A/2.09A
•  With all terminals led to colorized 4mm safety socket
•  Power & Power factor meter 1.0:
•  Single phase active power meter, digital, 0 ~ 1000W x2
•  Power factor meter, digital, 380V/5A
•  With all terminals led to colorized 4mm safety socket
•  AC voltmeter & AC ammeter 2.0:
•  Voltmeter digital AC 0 ~ 450V x3
•  Ammeter digital AC 0 ~ 3A x3
•  With all terminals led to colorized 4mm safety socket
•  Standard size available for frame insertion
•  Capacitive load 1.0:
•  Fuse protector 3A x 3
•  3-fold capacitors of 1uF/2uF/4uF/6uF
•  With all terminals led to colorized 4mm safety socket
•  Inductive load 1.0:
•  Auto former regulator 0 ~ 250V with fixed inductor group x3
•  Inductance value 1H, adjustable, 0.48A
•  Fuse protectors x3
• With all terminals led to colorized 4mm safety socket
•  Resistive load 1.0:
•  Double-linked resistor x3
•  Each with variable range 0 ~ 900Ω, 0.41A
•  Fuse protector x6

Accessories:

•  Safety hole sealing cable: conductor cross-section: 16AWG tinned copper wire, 3kV, 20A, with axial socket
•  Experiment guidebook
•  Wiring instruction map
•  Warranty: 1(One) year with services
•  Documents: Manufacturer's Authorization Letter with contact details should be submitted
•  ISO Certificate and Catalogue should be submitted
•  Installation, Testing, and Commissioning: Should be performed by the bidder’s qualified and experienced engineers
•  Training: Training by the bidder’s qualified and experienced engineers at DTTTI premises should be provided