FAQ: Substation & Power Plant UPS Solutions

Last updated 2026-08-25

Power generation plants — thermal, hydro, nuclear, and renewable — depend on UPS systems for DCS controllers, turbine governors, protection relays, and SCADA. High Idea Power provides purpose-built UPS solutions from ET Series Lithium Battery UPS to industrial HTT Series with zero transfer time.

Series Type Power Range Key Feature
ET Series Online double-conversion 1–40KVA Lithium Battery UPS, tower/rack
33ETPRO Series 3-phase online 30–60KVA PF=1.0, 95.5% efficiency
HT Series Industrial-frequency UPS 1–10KVA 220VDC, -25°C to +60°C
HTT Series Integrated industrial 10–120KVA 110/220VDC, LCD+touch HMI

1. ET Series Lithium Battery UPS for substation automation?

ET1K (1000VA/800W, 36V15AH) and ET3K (3000VA/2400W, 48V30AH) with built-in LiFePO4 for small bay-level units. ET3C15KS/20KS (15–20KVA, 3U, 192VDC external battery) for larger substations. RS232 + MODBUS + dry contact + Cloud monitoring — SNMP+MODBUS dual protocol for SCADA integration.

2. 33ETPRO Series for DCS applications?

33ETPRO (30KVA/30KW, 40KVA/40KW, 60KVA/60KW) three-phase online: PF=1.0 maximizes usable kW. 95.5% AC / 94.5% battery efficiency. ±192VDC configurable battery (also ±204/±216/±228/±240V). Isolation transformer option prevents DC bias. EMC Level 4 — most stringent IEC 61000-4 immunity. Up to 4 units parallel N+1. Physical: 797×438×176mm, 42–45kg.

3. Nuclear Class 1E UPS requirements?

HTT Series provides the foundation: galvanic isolation via internal transformer, 110/220VDC station battery compatibility, zero transfer (<1ms inverter→bypass), -10°C to +50°C, humidity 30–90%, altitude 2000m. LCD+touch HMI. Overload 125% for 10 min / 150% for 1 min. Custom Class 1E qualification testing available.

4. Renewable energy plants (solar PV / wind)?

HT Series (-25°C to +60°C, 220VDC input) for solar plants. ET/E Series 1U/2U rack-mount for wind turbine cabinets. H/HB Series wide DC tolerance (36–60V/90–132V/180–280V). SNMP+MODBUS for plant EMS integration. CloudUPS platform for remote monitoring of distributed renewable sites.

5. Communication protocols?

MODBUS RTU (RS232/RS485), MODBUS TCP (Ethernet), SNMP v1/v2c/v3, dry contacts (AC fail, battery low, bypass active, fault). CloudUPS web dashboard with email/SMS alarms. The dual protocol architecture enables simultaneous SNMP for IT NMS and MODBUS for plant DCS/SCADA.

6. Redundancy configurations?

N+1 parallel (up to 4 units) on ET/33ETPRO — automatic load sharing. Dual-bus (2N) for dual-corded DCS equipment. Static bypass <4ms. External maintenance bypass for servicing without dropping load.

7. Touch-screen HMI capabilities?

HTT and 33ETPRO: real-time mimic diagram (rectifier→inverter→load), multi-page parameters (V/A/Hz/PF per phase), battery management (voltage, current, runtime, SOH), event log with timestamps, multi-language support.

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