Backup power supply with PSL: what devices to leave on the battery and what to order
Photo model from the catalog. configuration and the composition of the proposed delivery are agreed separately.
Ask for the price and set of PSLThe requirement to “let everything run on battery” is difficult to turn into an exact order. It is useful for a backup to determine which instruments are needed in each work scenario and how long they should last. The PSL can be included in such a request, along with the consumer list, battery group, and power supply control requirements.
Divide consumers by reserve task
The list begins with the necessary functions of the object. For each function, name the devices, their permissible power supply and mode of operation in the absence of the main network. The required composition is determined by the project and operating conditions. Priorities in the procurement statement help to make claims specific.
| Group of statements | What to determine | What to pass for selection |
|---|---|---|
| Continuing work | What functions should be maintained continuously | Models, consumption and time required |
| Work on the event | What devices are included additionally | Consumption and combinations of regimes |
| Unplugged load | Which consumers are excluded from the reserve scenario | Agreed list and terms of the project |
For example, radio transmission and continuous operation of the receiver require different input data. If the devices are switched on at the same time, this combination must be clearly marked. The average load per day does not describe each system mode.
Set two indicators: load and duration
For the source, the load in the prescribed states is coordinated. For the battery part, the required duration, the actual state of the batteries and operating conditions are considered. These questions are related, but the name of the block itself does not promise a certain number of reserve hours.
If the data on consumers is still incomplete, attach a list of models and documents. Separately note the unknown values. This gives a clear sequence of refinements, instead of quotation, built on the conditional “all devices a little bit”.
What to report on batteries and charger
Indicate battery type and models, group composition, markings, installation date and available test results. Name the charger and its configuration. If the batteries are retained, their condition is considered as a starting condition, rather than being equated with the characteristics of the new product.
In scope of supply, it is convenient to separate power supply, battery components, a separate charge task, and system control. Before choosing, specify the functions of each product. Then the necessary charger or control will not be lost behind the general line “backup power supply”.
Agree on how the operator learns about the change of regime
Describe the desired indication or transmission of signals to the existing system. If the remote or control entrance is saved, attach the model and connection requirements. Signal selection is carried out separately from confirmation of the permissible power supply of consumers.
For acceptance, determine the necessary documents and verified conditions. Responsible specialists will agree on the procedure for checking the project and documentation. The saved list with models and modes will then help to repeat the delivery or change the composition of the equipment.
How to ask for the price of a full set
In the letter, list new and retained positions, required reserve time, state load, batteries, charging and control. To buy PSL in St. Petersburg, Kazan, Yaroslavl, Nizhny Novgorod, Krasnoyarsk or Khabarovsk, specify the final address. For Astana, Almaty, Aktau and Atyrau add the country and details. Price, current availability, composition and term are confirmed for agreed delivery.
Questions before buying
PSL itself determines the operating time of the AKB?
Duration is agreed on the batteries, their condition, load and the prescribed modes of the whole system.
What do you need to save the batteries?
Battery models and composition, markings, condition, charger, consumer list and required work scenarios.
How to prioritize the load in the order?
Divide the constant, event-included and excluded from the backup scenario consumers; attach models and data by mode.
Main product and related items
The main product from the technical guide is listed first. For each source, their own purpose, configuration and order composition are agreed.
