Hmcxz-270kVA 270kv Series Variable Frequency Resonant AC Hipot Tester

• Customization: Available
• Accuracy Grade: RMS 1.5
• Display: Touch Screen
• Model NO.: Hmcxz
• Power Source: 220V/380V
• Rated Capacity: 270kVA
• Transport Package: Wooden Box with Foam Inside
• Trademark: GDHM
• Origin: Hubei, China(Mainland)

Product Description

Advantage
1) Placed way: the placement of variable frequency power for longitudinal and transverse, especially suitable for field operation and observe.
2) Shockproof protection: internal and external have special damping rubber support foot and protect aluminum boxes, which can effectively slow motion and lifting the bumpy transport the shock. Ensure the inverter power long-term stability and reliability.
3) Parameter display: touch or external mouse LCD interface display system.
Can show resonance voltage (namely test before setting goals voltage), test frequency, measure frequency, low-pressure voltage, low voltage electric current, voltage time, over-voltage protection, over-current protection, flash winding protection, phase booster and stage timing, operation mode switch, capacitor, inductance, frequency swap calculation, parameters, still can show inquiry on frequency curve, voltage curve can intuitivey judgment when trials resonance frequency accurately and stability.
4) Parameter Settings: big screen touch LCD backlit and external mouse directly in completing various parameters Settings. But on the initial frequency, termination frequency, starting voltage, phase booster and timing, measuring bleeder variable ratio, incentive change ratio, over-voltage protection, over-current protection, flash winding protection, test mode, capacitance inductance frequency swap calculation, parameter setting tips, and help parameters Settings or choice.
5) Test mode: touch screen and external mouse operation, there is automatic and semi-automatic, manual three operating status. With pressor, tuning (including manual, automatic), subsection pressurized and timing, running status, pattern switching, troubleshooting tips, capacitance inductance frequency swap computing functions, etc.
6) Protection function and information clew: having high-pressure over-voltage protection, low-pressure over-current, over-current protection, as well as detuning protection, zero, shem winding protection, emergency stop, undervoltage protection multiple protection function.
7) Automatic voltage function: system according to the test voltage or manually set of automatic tracking and boost results, stable test voltage, voltage stability can amount to 1.0%.
8) FM range and frequency resolution all can set: FM range set:30~300Hz,45~100Hz,200-300Hz, on-demand setting, can accelerate tuning process; The frequency resolution, according to the needs, presetting 0.1 Hz,efficiency and tuned in tuned balance between accuracy obtained optimization.
9) Frequency adjustment is divided into thick harmonic fine tuning, and automatic resonant point, guarantee for trials in the whole experiment resonant frequency process does not happen drift.
10) Storage measuring datas and print.

Parameters of Full System
- Rated Capacity: 270kVA;
- Output Voltage: 0-270KV
- Output frequency: 30-300Hz;
- Input Power: 220V/380V ±10 %single phase, 50Hz
- Waveform distortion rate: output voltage distortion ≤ 1%;
- Working time: 30mins under rated load;
Cable testing: continuous 60 minutes under rated load;
- Temperature rise: ≤65Kunder rated load;
- Working Temperature: -15ºC~+45ºC
- Quality factors:  Q ≥ 50;
                Cable testing Q ≥ 30 (depend on load).
- Stability: Over-current/over-voltage/Flashover protection;Auto Time;Touch Screen;
- Accuracy: RMS 1.5



Application&System configuration
Combination switch cabinet, ,Transformer,insulators, Wall busbar,GIS Combination Breakers AC withstand voltage testing.

Configuration DUT		Reactor 45kVA/45kV  6units	Transformer output
10kV/240mm^2 Cable	Length 3000m	6 Reactors in parallel	3kV
110kV/300mm^2cable	Length 600m	2 groups: 3 Reactors in series and 2 groups in parallel	5kV
35KV/300mm^2cable	Length 1000m	3 groups: 2 Reactors in series and 3 groups in parallel	3KV
110KV power transformer	22000KW	4 Reactors in series	5kV
110KV Cabinet, busbar, GIS...		6 Reactors in series	15KV

 

Sr no	Description	Specification	Qty
1	Variable frequency power supply CHXB-15KVA/380V/220V	- Rated output capacity: 15KW - Power Supply: 220V/380V ± 15% (single phase), 50Hz - Output Voltage: 0 - 400V, adjustable; - Rated Output Current: 0-37.5A; - Frequency: 30 - 300Hz, 0.1Hz step adjustable - Frequency resolution:  0.1Hz - Frequency stability: ≤ 0.02%	1 unit
2	Excitation Transformer JLB-15KVA/3KV/5KV/15KV/0.2KV/0.4KV	- Rated capacity: 15KVA;                      - Input voltage: 400V/200V, single phase; - Output voltage :3kv/5KV/15kV; - Output current :5A/3A/1A; - Frequency:30-300Hz;	1 unit
3	Reactor DK-33.75KVA/27KV	- Rated Capacity: 33.75kVA; - Rated voltage: 27kV; - Rated current: 1.25A; - Induction:90H/each one - Continous wroking time: 60mins; - Temperature rising: <60ºC - Working frequency: :30-300Hz.	4 units