The GSZ Series is regenerative Grid Simulator with optional 4-Quatrant e-Load and PHIL interface. Designed to emulate global grid conditions for compliance and testing as per global regulatory compliance standards such as IEEE 1547, UL 1741, IEC 61000-3, IEC 61000-4, and more.
The GSZ’s single cabinet offers 30kVA, 45kVA, or 55kVA/kW and units can be paralleled up three-Phase High Power Systems of 1.1+MW based on your requirements.
GSZ platform is optimized for Power-Hardware-in-Loop PHIL, with three powerful DSPs for controls and measurements to cover advanced applications.
Up to 1.1MW+
Dual Range
15Hz-200Hz
AC & DC Power Source with Options for Load & PHIL Amplifier
Dual voltage range and high current availability within a single product
Save time testing to: IEC 61000-4-xx and IEEE 1547.1-2020
AC, DC (AC+DC option), and 6-form configurations for multi-channel capability
The GSZ series supports low and high voltage ranges for AC or DC which helps to offer Constant power for wide voltage range. The Low Voltage range 0-240 Vac LN / 0-415 Vac LL and High Voltage range 0-480 Vac LN / 0-830 Vac LL offers widest Operating Envelope.
For real-time Power Hardware in Loop (PHIL)grid simulation applications, the GSZ offers a high speed set of analog inputs and outputs with fast output response. This analog interface provides high speed input for controlling frequency, voltage or current and waveshape. Voltage and Current output capture signals are returned to the Real Time Simulation System.
The Regenerative Grid Simulator – GSZ Series has a built-in waveform digitizer and scope with fast transient capabilities at 200µs time resolution supporting LIST, PULSE and STEP modes. Waveform generation includes ten Standard, Sine, Square, Triangle, Clipped and Harmonics AND inter-harmonics generation.
AC and DC operation of modes per phase (or channel), and the automatic switching of output modes provides test engineers with a unique capability and the highest degree of flexibility. Isolated Neutral per phase allows user to operate GSZ in AC, DC, AC+DC, DC+AC output configurations available in single, split, three phase and multi-channels.
SmartSource Suite, our proprietary built-in platform that allows full remote Programming, development, and execution of test sequences in real-time. Data-logging, Programming control, and manage testing using the intuitive embedded web browser interface on any mobile device.
| Model | Phase Mode | Rated Power(1) (AC/DC) |
Voltage Ranges (Vin / Vdc) | Max. AC/DC Current High V Range(2) |
Max. AC/DC Current Low V Range(2) |
Form Factor | CTA |
|---|---|---|---|---|---|---|---|
| 3300GSZ | 1,2 & 3 | 30 kVA, kW 30 kW |
240Vac/480Vac ±340Vdc/±680Vdc |
45Arms 30Adc |
90Arms 60Adc |
34U Cabinet | Buy / Rent |
| 3450GSZ | 1,2 & 3 | 45 kVA, kW 45 kW |
240Vac/480Vac ±340Vdc/±680Vdc |
65Arms 40Adc |
110Arms 80Adc |
34U Cabinet | Buy / Rent |
| 3550GSZ | 1,2 & 3 | 55 kVA, kW 55 kW |
240Vac/480Vac ±340Vdc/±680Vdc |
75Arms 50Adc |
130Arms 100Adc |
34U Cabinet | Buy / Rent |
| 3900GSZ | 1,2 & 3 | 90 kVA, kW 90 kW |
240Vac/480Vac ±340Vdc/±680Vdc |
130Arms 80Adc |
220Arms 160Adc |
2 x 34U Cabinet | Buy / Rent |
| 31100GSZ | 1,2 & 3 | 110 kVA, kW 110 kW |
240Vac/480Vac ±340Vdc/±680Vdc |
150Arms 100Adc |
260Arms 200Adc |
2 x 34U Cabinet | Buy / Rent |
| 31650GSZ | 1,2 & 3 | 165 kVA, kW 165 kW |
240Vac/480Vac ±340Vdc/±680Vdc |
225Arms 150Adc |
390Arms 300Adc |
3 x 34U Cabinet | Buy / Rent |
| 32200GSZ | 1,2 & 3 | 220 kVA, kW 220 kW |
240Vac/480Vac ±340Vdc/±680Vdc |
300Arms 200Adc |
520Arms 400Adc |
4 x 34U Cabinet | Buy / Rent |
The GSZ Series is a regenerative grid simulator with built‑in Power Hardware‑in‑the‑Loop (PHIL) capability, designed for advanced testing of grid‑connected and power‑electronic devices under real‑time, closed‑loop grid conditions.
A grid simulator with PHIL allows real hardware (DUT) to interact in real time with a simulated electrical grid model. The GSZ Series enables this closed‑loop interaction while safely sourcing or absorbing power.
Yes. The GSZ Series is designed to interface with real‑time digital simulators used for PHIL testing, enabling synchronized and stable operation.
CALTEST INSTRUMENTS PVT LTD
NMR Green Nest, Ground Floor
Hitech Defense and Aerospace Park, Bangalore North,
Bandi Kodigehalli
Bangalore 562149, KA.
info@caltestindia.com
+919845007602