IGBT Type / Contactless Type Voltage Regulator
Product Summary:
The YIY-AVC is an inverter based system that protects sensitive industrial and commercial loads from voltage disturbances.Providing fast, accurate voltage sag and surge correction as well as continuous voltage regulation and load voltage compensation.
The YIY-AVC has been optimally designed to provide equipment immunity from power quality events on the supply network.
Working Principle:
The YIY-AVC consists of two converters that are not on the current path between the load and the utility. Instead, the corrective voltage injection is achieved by means of a transformer winding between the utility and the sensitive load. This configuration results in a very efficient and effective method to provide voltage correction with reduced risk of negative impacts on the load. The YIY-AVC requires no batteries as it draws the additional energy required during sag to make up the correction voltage from the utility supply. With no ongoing maintenance costs typically associated with batteries the cost of ownership for YIY-AVC systems is very small. Furthermore, the YIY-AVC contains a redundant internal bypass system that, in the event of overload or internal fault condition, ensures that the load is continued to be supplied from the utility.
Technical Specifications:
| Item | Tech. Spec. | ||
| Power Capcity | Single Phase : 10KVA-1800KVA | ||
| Three Phase : 30KVA -3600KVA | |||
| Utility Input | Power System | Three Phase 380V+N ( 3P4W) 3 phase + Neutral (4-Wire)1 Center ground referenced (TN-S) |
|
| Range | 220 V – application range 187 – 253 V 380 V – application range 325 – 440 V |
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| Max Supply Voltage | 130% | ||
| Frequency | 50Hz/60Hz ±5Hz | ||
| Outage – Control Ride Through | 10 ms | ||
| Harmonics2 | THDv<3% | ||
| Output | Voltage | To match nominal input voltage3 | |
| Regulation Mode | contactless | ||
| Equivalent Series Impedance | < 4% (model specific) | ||
| Control model | independent control on each phase | ||
| Partial Correction Derating conditions | 1.0 PF at 80% load, 0.8 PF at 100% load | ||
| Power Factor | 0 lagging to 0.9 leading | ||
| Crest Factor | 300% | ||
| Overload Capacrty from 100% supply Volte | 150% for 21S, once every 500s | ||
| Performance | Efficiency | Typically > 95% | |
| Sag Correction Response | Initial <250ps Complete < 1/2 cycle | ||
| Voltage Regulation Accuracy | <±0.5% typical, ±2% max | ||
| Sag Correction Accuracy | ±4% | ||
| Continuous Regulation Range | ±10% | ||
| Sag correction performance5 Three phase sags Single phase |
60% to 100% for 30 s, 50% to 90% for 10 s 40% to 100% for 30 s |
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| Partial correction derating conditions6 | 1.0 PF at 80% load / 0.8 PF at 100% load | ||
| Internal Bypass | Capacity | 100% of model rating (kVA) | |
| Maximum Overload Capacity (in bypass) | 125% for 10 minutes / 150% for 1 minute /500% for 1 s 2000% for 200 ms |
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| Transfer Time | To Bypass < 0.5 ms / To Inverter < 250 ms | ||
| Equivalent Series Impedance | Bypass < 2.5% typical | ||
| Injection Transformer | Transformer Type | Dry | |
| Insulation | IEC 60085 Thermal class 200 | ||
| Frequency | 50 Hz / 60 Hz | ||
| Vector Group | Diii (delta + 3 independent windings) | ||
| Protection | Input over/low voltage protection/ output over/low voltage protection, input over current protection, TX over heat protection, output over load protection etc. | Internal | |
| Display | 7inch Touch Screen | Parameter control, power info, display, fault log, history curve line, etc. | |
| Environmental | Operating Temperature Range | 0° C to 50° C (32° F to 122° F) | |
| Temperature Derating | Above 40° C, derate at 2% load per °C to a maximum of 50° C | ||
| Operating Altitude | < 1000 m without derating | ||
| Derating with Altrtude | 1 % every 100m above 1500m. 2000m max | ||
| Inverter Cooling | Forced ventilation | ||
| Transformer Cooling | Natural convection | ||
| Humidity | < 95%, non-condensing | ||
| Pollution Degree Rating | 200% | ||
| Noise | < 75dBA @ 1 m | ||
| Working Temperature | -25 〜+45°C | ||
| Storage Temperature | -30 〜+70C | ||
| IP Grade | IP20 | ||
Operational Detail:
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