Zhengzhou Great Electric Co.,Ltd.
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HES-10 CT & PT Accuracy Testing System
System Configuration
Main function description
| Product Name | Main Function |
| HES-1C Digital Transformer Tester | Measurement the Ratio error and phase error of the CT & PT |
| FY49 Current Transformer Burden | The secondary load of the CT |
| HLS-30G2 Standard Current Transformer | Benchmark of the CT and provide Current source |
| FY95 Voltage Transformer Burden | The secondary load of the PT |
| HJS-35G2 Standard Voltage Transformer | Benchmark of the PT and provide Voltage source |
| HES-10 CT&PT Testing Bench | To provide testing power of the CT&PT, control function, CT demagnetization, etc. |
Product Technical Parameters
HES-10 CT&PT Testing Bench
| Input Voltage | AC 220V 50Hz or 60HZ Single-phase |
| Output Voltage | AC 0-250V |
| Rated Capacity | 10kVA |
| Regulation way | coarse adjustment & fine adjustment |
| Adjustment way | Manual adjustment |
| Demagnetization Function | provide “open-circuit demagnetization”, “closed-circuit demagnetization”, “Error measurement” |
| Protection functions | provide over current protection |
| Equipment Can be installation and placed | FY current transformer burden,FY voltage transformer burden,HES-1C Digital Transformer Tester,Other Control function etc. |
HES-1C Digital Transformer Tester
| Rate Current and Voltage |
5A, 1A, 110V, 110/√3V, 100/√3V, 1003V etc (Total 10 Rated Current and 15 Rated Voltage) |
| Measuring range |
Ratio error range: ±0.0001% ~ ±19.99%(three positions: 0.1999%, 1.999%, 19.99%). Minimum resolution:0.0001%
Phase error range:±0.01' ~ ±900'(three positions: 9.00',90.0',900'). Minimum resolution: 0.01'
Impedance range:0.001Ω~ 19.99Ω. Minimum resolution: 0.001Ω
Admittance:0.001 ms ~ 19.99 ms. Minimum resolution:0.001 ms |
| Accuracy of Voltage and Current display |
Accuracy: ±1% Display range: 0-199,9% |
| The secondary impedance of standard current transformer connected with Tester | ≤ 0.11Ω (cosφ = 1) |
| The secondary impedance of tested current transformer connected with Tester | ≈ 0.003Ω (cosφ = 1) |
| Loading of standard voltage transformer connected to the tester | ≈ 0 |
| Polarity display current and voltage | < 30% of normal value |
| Power consumption | < 20VA |
| Rate Frequency | 50Hz or 60HZ |
HLS-30G2 Standard Current Transformer (Include Current Source)
| Rated primary current(A) |
5,7.5,10,15,20,25,30,40,50,60,75,80,100,120,150,160,200,250,300,315,400,500, 600,630,750,800,1000,1200,1250,1500,1600,2000,2500,3000,3150 or more optional |
| Rated secondary current | 5A,1A |
| Accuracy calss | 0.02% or higher accuracy class |
| Rated secondary load | 0.2 ohm |
| Frequency | 50Hz or 60HZ |
| Operating Range | 1%--120% |
| Capacity of the Current Source | 10kVA |
FY49 current transformer burden
| Rated Current | 5A or 1A (optional) |
| Operating Range | 1%--120% |
| Rated load (VA) |
cosФ = 0.8: 2.5, 3.75, 5, 6.25, 7.5, 10, 12.5, 15, 20, 25,30, 40, 50, 60 VA or more options cosФ = 1.0: 2.5, 3.75, 5, 6.25, 7.5, 10 VA or more options |
| Rate Frequency | 50Hz or 60HZ |
| Accuracy Class | ±3% |
FY95 Voltage transformer burden
| Rated voltage | 100V, 100/√3V or more optionals |
| Operation Range | 20%--120% |
| Rated load | 1.25VA, 2.5VA, 5VA, 10VA,20VA, 40VA, 80VA (Total load:158.75 VA) or more option |
| Fundamental error | ±3% |
| Power factor | COSФ=0.8 |
| Rate Frequency | 50Hz or 60Hz |
HJS-35G3 Standard Voltage Transformer (Include Voltage Source)
| Rated primary voltage | 6kV,10kV,15kV,22kV,35kV or more option |
| Rated secondary voltage | 100V,100/√3V,110V,110/√3V, or more option |
| Accuracy class | 0.05% or higher accuracy class |
| Secondary capacity | 0.5VA or more option |
| Power factor | cosΦ=1.0 |
| Power frequency | 50Hz |
| Range of operating voltage | 20%--120% |
Current transformer primary test cable
Cable configuration:
2000A x 3m x 1set,1000A x 5m x 1set
500A x 1.5m x 2set,250A x 1.5m x 2set,100A x 1.5m x 2set