Line-Frequency UPS | BK-GH33-80KVA Transformer-Based Double Conversion UPS

Product Overview

The BK-GH33 Series 80KVA Industrial grade UPS is a high-performance line-frequency UPS (also known as low-frequency UPS) featuring three-phase input and three-phase output, specifically engineered for mission-critical applications requiring uncompromising stability and reliability. As a premium transformer-based online UPS and double conversion line frequency UPS, it integrates a heavy-duty industrial-grade isolation transformer, delivering inherent galvanic isolation that effectively shields sensitive equipment from grid harmonics, electromagnetic interference (EMI), voltage spikes, and ground loops.

Unlike transformerless online UPS alternatives, this UPS with built-in isolation transformer adopts true Double Conversion UPS technology, ensuring 0ms seamless transfer between mains and battery modes to eliminate downtime risks for critical loads. Equipped with a high-precision step-down transformer for voltage stabilization, it maintains exceptional output voltage regulation even amid extreme grid fluctuations, while its low total harmonic distortion input (THDi) qualifies it as a Low THDi line-frequency UPS that complies with global green energy standards.

The BK-GH33-80KVA offers enhanced load-carrying capacity, making it a superior UPS for inductive loads and motor startup—a key advantage over standard models. Its rugged design and High surge withstand capability UPS performance ensure reliable operation in extreme temperatures, high dust, and volatile power conditions, solidifying its reputation as a Robust UPS for harsh industrial environments.

Applications

Industrial Automation & Control

As a dedicated Industrial grade UPS, it protects PLCs, automated production lines, CNC machines, and industrial robots—its High surge withstand capability UPS design handles the inrush currents of inductive loads and motor startup, while galvanic isolation suppresses EMI to avoid costly production downtime in harsh factory settings.

Data Centers & IT Infrastructure

This double conversion line frequency UPS ensures 24/7 power for core servers, storage arrays, and network switches—0ms transfer time prevents data loss, while the built-in isolation transformer delivers pure power that optimizes IT equipment lifespan and reduces maintenance costs, supporting data center PUE optimization goals.

Medical & Healthcare Facilities

Compliant with medical-grade power standards, the line-frequency UPS provides stable power for diagnostic scanners, laboratory instruments, and operating room life support systems—its low leakage current, precise voltage regulation, and galvanic isolation eliminate risks of equipment malfunctions that could compromise patient safety.

Oil & Gas & Energy Sector

Ideal for offshore platforms, substation automation, and renewable energy systems, this Robust UPS for harsh industrial environments withstands extreme temperatures, humidity, and voltage instability—its low-frequency UPS architecture ensures reliable performance in remote, high-stress energy infrastructure.

Manufacturing & Heavy Industry

Supports heavy machinery, assembly lines, and precision tooling—its ability to handle mixed inductive/capacitive loads and step-down transformer for voltage stabilization make it the preferred UPS System for manufacturing facilities where power quality directly impacts product quality and production efficiency.

Product Features

Industrial-Grade Line-Frequency Transformer Design

As a authentic transformer-based online UPS and low-frequency UPS, it integrates a heavy-duty isolation transformer that provides physical galvanic isolation, suppressing grid interference and voltage spikes—essential for harsh industrial environments and sensitive equipment protection.

True Double Conversion Technology

Operates as a pure Double Conversion UPS with 0ms transfer time between mains and battery modes—the inverter powers the load 24/7, ensuring uninterrupted power that outperforms traditional standby UPS systems and even some High-frequency double-conversion UPS models in critical scenarios.

Superior Load Adaptability

Engineered as a specialized UPS for inductive loads and motor startup, it handles inrush currents and mixed load types (inductive, capacitive, resistive) with ease.

Precise Voltage Stabilization

Equipped with a step-down transformer for voltage stabilization, it maintains output voltage regulation of ±1% even when input voltage fluctuates widely—eliminating the need for additional voltage regulators and ensuring consistent performance for precision equipment.

Comprehensive Protection Mechanisms

Integrates over-voltage, under-voltage, overload, short-circuit, over-temperature, and battery over-charge/discharge protection—its rugged design safeguards both the UPS System and connected equipment, minimizing repair costs and downtime.

Smart Monitoring & Remote Management

Features an intuitive LCD display for real-time status tracking (input/output parameters, battery health, faults) — standard RS232/USB interfaces and optional SNMP card enable remote network management, aligning with modern industrial AIoT integration trends.

Specifications

Kindly note: The technical parameters provided here are for reference only and are intended as a selection guide. Given that the product offers various customization options, such as power rating, voltage configuration, battery solutions, and special certifications, the final product specifications will be subject to the final order document.