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Primary Current Injection Test Sets
Megger INGVAR Portable Primary Current Injection Test System
The Megger INGVAR Portable Primary Current Injection Test System enables simple testing of protective relay equipment, circuit breakers, all types of switchgear, ground grid and CT commissioning. It is ideal for applications that require high variable currents, such as testing the turns ratio of current transformers.
The Megger INGVAR Portable Primary Current Injection Test System has a maximum current output of 5000A. It also features a unique I/30 (Current Reduction) function that can be used to pre-set the current using a low current to prevent the test sample from heating. This stops the test result from being corrupted.
The Megger INGVAR Portable Primary Current Injection Test System consists of a control unit and current unit that can be easily and quickly assembled in the field. Each of the two units weighs approximately 20kg and is easy to transport. The control unit can calculate and display the current transformer turns ratio, impedance, power, power factor (cos φ) and phase angle. Additionally, current and voltage can be viewed as percentages of nominal values. The Megger INGVAR Portable Primary Current Injection Test System’s fast-action Hold function can be used to freeze the reading on the digital display. Moreover, the control unit includes a second measurement channel which can be used to test an additional voltage or current.
The Megger INGVAR Portable Primary Current Injection Test System is simple-to-use, versatile and practical.
Applications
| Primary current injection testing and breaker testing | Provides high currents and the ability to measure very short duration current flow. Extra contacts are not required to measure the operating time of low-voltage breakers and testing stops the instant the main breaker contacts open to interrupt the current. Output current initiation is synchronised with the current's zero-cross-over point to ensure good reliability and minimised DC offset. |
| Testing current transformers | During turns ratio testing, the primary current and either the secondary current or the turns ratio are displayed simultaneously. As the turns ratio is displayed as a nominal value further calculation is not required. The burden of the secondary circuit can be measured and presented in VA. |
| Polarity Testing | The current phase displacement is displayed and the polarities of the outputs are clearly marked. |
| Heat Runs | Current can be applied continuously or at programmed intervals. Times are displayed in minutes and hours enabling long-term testing. |
| Automatic Reclosers and Sectionalisers | Test circuit breakers with reclosing relays. Measure the operating limits, partial times, total times and the number of operations before lockout. Supports user-programmable reclosing sequences for testing sectionalisers. |
| Testing Integrity of Safety-ground Devices | Inject current through the safety-ground and measure the voltage drop to ascertain the impedance. |
Megger INGVAR Portable Primary Current Injection Test System Key Features
- Enables simple testing of protective relay equipment, circuit breakers, all types of switchgear, ground grid and CT commissioning
- Ideal for applications that require high variable currents
- Test the turns ratio of current transformers
- Maximum current output: 5000A
- Current Reduction (I/30) function: pre-sets the current using a low current to prevent the test sample from heating; this stops the test result from being corrupted
- Consists of a control unit and current unit
- Can be assembled quickly and easily
- Each unit weighs approximately 20kg
- Easy to transport
- Calculates and displays transformer turns ratio, impedance, power, power factor (cos φ) and phase angle
- Current and voltage can be viewed as percentages of nominal values
- Fast-action Hold function freezes readings on the display
- Digital display
- Second measurement channel can be used to test an additional voltage or current
- Mains inlet, 3-pin CEE connector (16A)
- Emergency stop button
- Current adjustment knob
- Indicator lamps
- Input for voltmeter
- Miniature circuit breaker for current output
- Input ammeter
- Multi-connector for interconnection of control and current units
- USB port, type B
- On/Off switch
- Selection/ setting knob
- Setting buttons with pre-defined settings for Ammeter, V/A Meter, System, Memory and Application
- Injection button: starts current injection and timing
- Momentary Injection button: injection continues for as long as the button is pressed
- Automatic Injection Stop button: generation stops after a specified interval or when the input condition is met
- Manual Shut Off button: injection and timing are stopped when this button is pressed
- Stop-condition Indicator
- Status Indicator
- Stop input: used to freeze a reading or stop the injection
- Current bars for parallel or serial connection of the outputs
What’s Included?
- 1x Megger INGVAR Portable Primary Current Injection Test System (Control Unit and Current Unit)
- 1x 3m (10ft) Interconnection Cable
- 2x 2m (6.5ft) x 120mm2 Current Cable
- 1x 2.5m (8ft) Mains Cable
- 1x 5m (16ft) Grounding Cable
Megger INGVAR Portable Primary Current Injection Test System Technical Specifications
| Environment | |||
| Application field | The instrument is intended for use in medium-voltage substations and industrial environments. | ||
| Temperature | Operating | 0°C to +50°C (+32°F to +122°F) | |
| Storage & transport | -25°C to +55°C (-13°F to +127°F) | ||
| Humidity | 5% – 95% RH, Non-condensing | ||
| Altitude (operational) | <2000 m | ||
| Pollution degree | 2 | ||
| CE-marking | |||
| EMC | 2014/30/EU | ||
| LVD | 2014/35/EC | ||
| ROHS | 2011/65/EU | ||
| General | |||
| Measurement category | CAT I Rated transient overvoltage: 2200 V | ||
| Mains voltage | 100 – 240 V AC, 50/60 Hz | ||
| Mains inlet | IEC 60309-1, -2. 16 A | ||
| Power consumption | Input voltage |
Output current |
Input current |
| 240 V | 2 kA | 20 A | |
| 240 V | 3.8 kA | 45 A | |
| 120 V | 2.5 kA | 30 A | |
| 120 V | 1 kA | 12 A | |
| Protection | The output transformer has a built-in thermal cut-out, and the primary side is protected by a miniature circuit breaker |
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| Dimensions | Control Unit | 546 x 347 x 247 mm (21.5” x 13.7” x 9.7”) |
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| Current Unit | 410 x 340 x 205 mm (16.1” x 13.4” x 8”) |
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| Weight | Control Unit | 20 kg (44 lbs) | |
| Current Unit | 20 kg (44 lbs) | ||
| Data transfer | USB Type B Female | ||
| Display | |||
| Type | LCD | ||
| Available languages | English, German, French, Spanish, Swedish. | ||
| Outputs | |||
| Outputs in parallel, 240 mains voltage | |||
| Maximal current2) |
Maximum generation time |
Minimum rest time1) |
Load voltage |
| 700 A | continuously | - | 2.6 V |
| 1000 A | 30 min | 5 min | 2.5 V |
| 2000 A | 3 min | 10 min | 2.1 V |
| 3000 A | 1 min | 12 min | 1.8 V |
| 5000 A | 2 sec | 3 min | 1.2 V |
| 350 A | continuously | - | 5.3 V |
| 500 A | 20 min | 15 min | 5.1 V |
| 1500 A | 2 min | 12 min | 3.5 V |
| Notes | 1) Time to reset the thermal protection | ||
| 2) Output current x open circuit voltage / input voltage | |||
| Measurement Section | |||
| Ammeters | Measurement method | AC 50/60 Hz, DC RMS | |
| Inaccuracy | 1% of range ±1 digit | ||
| Ammeter 1 | Ranges | Serial Low | 0 – 2.15 kA |
| Serial High | 0 – 3.30 kA | ||
| Parallel Low | 0 – 4.00 kA | ||
| Parallel High | 0 – 6.50 kA | ||
| Resolution | 0-999 A | 1 A | |
| 1.00 – 6.50 kA | 10 A | ||
| Ammeter 2 | Ranges | 0 – 2 A / 0 – 20 A | |
| Voltmeter | Measurement method | AC 50/60 Hz, DC RMS | |
| Ranges | 0 – 0.2 V, 0 – 2 V, 0 – 20 V, 0 – 200 V, AUTO |
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| Inaccuracy | 1% of range ±1 digit | ||
| Input resistance (Rin) | 240 kΩ (range 0 – 200 V) | ||
| 24 kΩ (other ranges) | |||
| Dielectric withstand | 2.5 kV | ||
| Timer | Presentation | In seconds, mains frequency cycles or hours and minutes | |
| Ranges | 0.000 – 99999.9 s 0 – 9999 cycles |
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| Inaccuracy | ±(1 digit + 0.01% of value) For the stop condition in INT-mode 1 ms shall be added to the specified measurement error |
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| Stop input | Max. input voltage | 250 V AC / 275 V DC | |
| Phase angle Range |
0 – 359º | ||
| Resolution | 1º | ||
| Inaccuracy | ±2º (For voltage and current readings higher than 10% of the selected range) |
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| Z, P, R, X, S, Q and power factor (cosϕ) | |||
| The result is calculated using U, I and ϕ | |||
| Imax | Stores highest current value that exists ≥100 ms | ||
| INT-level | Threshold indicating that current is interrupted, can be set to approx. 0.5 or 2% of range for Ammeter 1 | ||
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Additional Information
| SKU | BH-72490 |
|---|---|
| Manufacturer Part Code | BH-72490 |
