Kehua UPS power supply dedicated maintenance free lead-acid battery stable endurance data center emergency backup

Description :

  UPS battery is an energy storage core component specially designed for uninterruptible power supply systems under the Kehua brand, mainly solving the problem of continuous power supply for critical loads during power outages. In typical operating conditions such as data centers, medical equipment, and precision instruments, it can switch to battery powered mode within milliseconds, ensuring that data is not lost and equipment does not crash. As an ideal supporting solution for Kehua UPS power supply, this series of products has high energy density and low self discharge rate characteristics, which can adapt to long-term float charging state, provide reliable backup energy support for various key infrastructure, and ensure business continuity.

  The Kehua UPS battery usually adopts valve regulated sealed lead-acid (VRLA) technology, and the shell is made of high-strength ABS material, which has excellent impact resistance and flame retardant performance. The internal electrode plate adopts a lead calcium tin alloy grid structure, which effectively suppresses dendrite growth and extends cycle life. Typical specifications cover the 12V series, with capacities ranging from 7Ah to 200Ah. Specific parameters need to be confirmed based on the actual model nameplate. The product complies with national standards such as GB/T 19638.2 and has passed ISO9001 quality system certification. The terminal is designed with copper core silver plated or lead plated to reduce contact resistance, ensure stability and safety during high current discharge, and adapt to a wide temperature working environment of -15 ℃ to 45 ℃.

  When selecting Kehua UPS batteries, it is important to focus on matching the DC voltage requirements and load power of the UPS host. If the load power is high or a long backup time is required, a large capacity unit or a battery pack composed of series and parallel connections should be selected. Attention should be paid to distinguishing the differences between starter batteries and backup batteries. This category is designed specifically for deep cycling or long-term float charging and is not suitable for high rate instantaneous discharge scenarios such as car starting. For newly built computer rooms, it is recommended to reserve 20% -30% of capacity redundancy to cope with future expansion; For the renovation of old stations, it is necessary to check the consistency of internal resistance between new and old batteries. It is strictly prohibited to mix different brands and years of Kehua UPS batteries to avoid affecting the performance of the entire set.

  When installing Kehua UPS batteries, good ventilation should be maintained, and direct sunlight and work near heat sources should be avoided. The connecting cables should be tightened and coated with Vaseline to prevent oxidation. In daily maintenance, it is recommended to conduct a visual inspection once every quarter to check for any leakage or bulging; Conduct a verification discharge test every six months, record individual cell voltage and internal resistance data, and promptly detect outdated batteries. The typical service life can reach 3-5 years under float charging conditions, depending on the ambient temperature and charging and discharging frequency. If the voltage deviation of a single unit exceeds the average value ± 50mV, it should be balanced charging or replaced in a timely manner to prevent the fault from expanding and affecting the emergency power supply capability of the entire UPS system.

Kehua YTG1110 UPS Product Parameters

(Power frequency online, single in single out, tower type long-term machine, no built-in battery, built-in isolation transformer)

1、 Core specifications

-Rated capacity: 10kVA/8kW (PF=0.8), also available in 10kVA/9kW (PF=0.9) version

-Topology: Power frequency dual conversion online type, built-in output isolation transformer, pure sine wave output, seamless switching between mains and battery in 0ms

-DC voltage: 192VDC (requires 16 12V valve regulated sealed lead-acid batteries connected in series)

-Overall efficiency: up to 91% in dual transformation mode; Support ECO energy-saving mode for higher efficiency

-Charging capacity:<10 hours can be recharged to full capacity, supports temperature compensation, automatic equalization/float charging

2、 Input parameters

-Input format: single-phase three wire (220V)

-Input voltage: 165-280VAC (wide grid adaptation, compatible with generator power supply)

-Input frequency: 50Hz ± 10% (grid adaptive); Generator frequency tracking range 45-55Hz

-Input power factor: ≥ 0.95

3、 Output parameters

-Output voltage: 220V ± 1% (isolated transformer output, high voltage stabilization accuracy)

-Output frequency: mains synchronous; Battery mode 50Hz ± 0.5%

-Waveform distortion: pure sine wave, THD< 3% (linear load)

-Overload capacity: 115% load can operate for a long time; 125% load can last for 10 minutes; 150% load can last for 1 minute

4、 Physics and Environment

-Installation method: Tower type (supports rack deployment)

-Dimensions: 300 × 610 × 530mm (width × depth × height)

-Whole machine weight: approximately 67kg (bare machine without battery, including isolation transformer)

-Working temperature: 0-40 ℃

-Relative humidity: 0-95% (without condensation)

-Noise: ≤ 55dB

-Communication interface: standard RS232/RS485, dry contact, EPO emergency shutdown; Optional SNMP monitoring card

-Protection function: Multiple protections such as battery undervoltage/overvoltage, bus overvoltage, overload, short circuit, overheating, battery reverse connection, etc

5、 Applicable scenarios

Suitable for medical equipment, precision instruments, industrial automation, IT rooms and other places with extremely high requirements for power purity, anti-interference and voltage stabilization isolation, especially suitable for harsh working conditions in the power grid environment.

Core Features

-Built in isolation transformer: Provides strong resistance to impact and short circuit, blocks ground current flow, and reduces zero ground voltage.

-Fully digital control: adopting DSP+MCU architecture, with high control accuracy and fast protection response.

-Wide input range: reduces frequent battery discharge and extends battery life.

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