Predictika · Power transformers

An AI sales agent's cast resin transformer quote, checked before it goes out

An AI sales agent prepares a cast resin transformer for a customer: the rated power and insulation level, the enclosure and protection class, the cooling, the loss and sound figures it quotes, and the site it will stand in. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the manufacturer's published planning guide and returns a verdict, every reason and the figures it looked up.

Scope: SGB-SMIT cast resin transformers, 12 kV and 24 kV selection table (400 to 3150 kVA), standard enclosures, cooling, site classes and the Safe and Jet Systems, from the public planning guide. See everything this validator covers

This validator models quotes for SGB-SMIT cast resin transformers as described in the public SGB-SMIT planning guide for cast resin transformers, not just the scenarios shown below.

  • Selection table — for the 12 kV and 24 kV insulation levels and the ratings from 400 to 3150 kVA, the validator looks up the no-load loss, the load loss at 120 C, the short-circuit voltage and the sound power level, and compares them with the figures on the quote.
  • Power and voltage range — 50 kVA to 25 MVA and Um up to 40.5 kV; ratings or voltages outside the selection table need a person to confirm.
  • Enclosures — standard enclosure sizes 1 to 6 take transformers up to a stated rating for each voltage series; protection classes IP21, IP23, IP31 and IP33 for standard and IP21 to IP54 for project enclosures; an enclosure of at least IP23 is mandatory outdoors.
  • Cooling and load — fans add up to 40 percent; free-standing units take 2 to 6 fans; air/water cooling goes with project enclosures; the load capacity depends on the annual average ambient temperature.
  • Site — the climate class must suit the lowest site temperature; classes above C2 and E2, altitudes above 1000 m, ships, earthquake zones, wind turbines, EX areas and other frequencies need a person to confirm.
  • Safe System and Jet System — the Safe System up to 10 MVA and the Jet System from 1.6 to 4 MVA, both up to 40.5 kV.

Any cast resin transformer quote that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (SGB-SMIT publishes none, so this validator produces no price build-up), liquid-immersed and other transformer types, reduced-loss and low-noise designs, dimensions and weights (the guide gives them as guide values only), and the other planning-guide topics such as lifting and transport. Assumptions: the guide's 10 kV and 20 kV voltage series for standard enclosures are read as the 12 kV and 24 kV insulation levels, the 3160 kVA table row is left out because it lists no losses, and the combination of fan uplift with ambient derating is sent to a person because the guide does not state it.

The AI sales agentBuilds the transformer quote from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

8 scenarios in 4 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
Click to expand
    
Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
Enclosure size that depends on rating and voltage seriesOnly with care
Six standard enclosure sizes each take a different maximum rating at 10 kV and 20 kV, so a table has to be loaded and kept in step with the guide, and a too-small enclosure shows up only at engineering.		The enclosure limit is looked up on every call and compared with the rated power.
Stated losses and sound power must match the selection tableOnly with workarounds
Each rating has its own losses and sound level; a rep who reuses the figures of a neighboring rating quotes the wrong ones, and a rule has to compare each figure with the table.		The table figures are looked up on every call and compared with each figure on the quote.
Outdoor use needs an enclosure and a protection classOnly with care
The rule combines the installation site, the enclosure type and its protection class, and is easy to miss when a rep changes only one of them.		The site, enclosure and protection class are checked together on every call.
Load capacity that depends on cooling and ambient temperatureOnly with workarounds
The capacity is a percentage that depends on the annual average ambient temperature and on fans; it usually lives in an engineering spreadsheet beside the quote.		The capacity is looked up and compared with the load on every call, and shown with the reason.
Special systems with their own limits, and gray zonesOnly with care
The Safe System and the Jet System have their own power ranges, and site classes above the standard need a person, which tends to become a custom approval flow.		Block, needs-approval and allow are separate outcomes, returned with the reasons.

  

  

    
What this validator catches: findings from its test cases
Click to expand
    
Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1The planning guide lists no selection table row for 450 kVA at this voltage; losses and dimensions are specific to the order, so a person should confirm the design with SGB-SMIT.
2The planning guide covers rated powers from 50 kVA to 25 MVA; the quote has 40 kVA.
3Powers above 25 MVA are possible on request only; the quote has 30000 kVA.
4The voltage is inside the 1.1 to 40.5 kV range of the guide, but the guide lists selection tables for 12 kV and 24 kV only; a person should confirm the design with SGB-SMIT.
5The planning guide covers a maximum operating voltage Um of 1.1 to 40.5 kV; the quote is above that range.
6The Safe System is delivered in the power range up to 10 MVA; the quote has 12000 kVA.
7The Jet System is delivered in the power range from 1.6 MVA to 4 MVA; the quote has 1000 kVA.
8The Safe System and the Jet System are delivered up to a maximum operating voltage Um of 40.5 kV.
9The chosen standard enclosure size takes transformers up to 250 kVA at this voltage series; the quote has 1000 kVA, so a larger standard enclosure or a project enclosure is needed.
10The chosen standard enclosure size takes transformers up to 630 kVA at this voltage series; the quote has 1000 kVA, so a larger standard enclosure or a project enclosure is needed.
11The quote asks for protection class IP34; standard enclosures are offered in IP21, IP23, IP31 and IP33 and project enclosures from IP21 to IP54.
12The quote asks for protection class IP55; standard enclosures are offered in IP21, IP23, IP31 and IP33 and project enclosures from IP21 to IP54.
13An enclosure is mandatory for outdoor installation, with a minimum protection class of IP23; the quote has none or a lower class.
14Air/water cooling (AFWF) is offered with project enclosures; the quote has a different enclosure choice.
15A free-standing cast resin transformer is fitted with 2 to 6 fans; the quote has 1.
16The continuous load of 1500 kVA is above 140 percent of the rated power of 1000 kVA, the capacity at this cooling and annual average ambient temperature.
17The lowest site temperature is 30 degrees below zero, but the climate class on the quote is rated for operation down to 25 degrees below zero.
18Configurations up to climate class C2 and environmental class E2 are standard; the higher class on the quote must be requested from SGB-SMIT.
19The lowest site temperature is 10 degrees below zero, but the climate class on the quote is rated for operation down to 5 degrees below zero.
20The continuous load of 1100 kVA is above 100 percent of the rated power of 1000 kVA, the capacity at this cooling and annual average ambient temperature.
21The continuous load of 1130 kVA is above 112 percent of the rated power of 1000 kVA, the capacity at this cooling and annual average ambient temperature.
22The continuous load of 940 kVA is above 93 percent of the rated power of 1000 kVA, the capacity at this cooling and annual average ambient temperature.
23The guide gives the 40 percent fan uplift and the ambient load capacity separately and does not say how they combine at an annual average ambient of 30 C; a person should confirm.
24The guide lists load capacity only for annual average ambient temperatures of -20, -10, 0, 10, 20 and 30 C; the load was not checked at this ambient.
25The installation altitude of 1500 m is above 1000 m; the guide asks for it to be communicated so the design can take it into account.
26Ships, earthquake zones, wind turbines and EX areas are extreme installation conditions that must be communicated to SGB-SMIT for correct planning.
27The guide offers 16 2/3, 50 and 60 Hz; other frequencies are possible on request.
28The quote states a no-load loss of 1300 W, but the selection table lists 1550 W for this rating.
29The quote states a load loss at 120 C of 9001 W, but the selection table lists 9000 W for this rating.
30The quote states a sound power level of 62 dB(A), but the selection table lists 65 dB(A) for this rating.
31The quote states a short-circuit voltage of 6 percent, but the selection table lists 4 percent for this rating and voltage.
32The quote states a short-circuit voltage of 4 percent, but the selection table lists 6 percent for this rating and voltage.
33The chosen standard enclosure size takes transformers up to 315 kVA at this voltage series; the quote has 3150 kVA, so a larger standard enclosure or a project enclosure is needed.
34The continuous load of 4500 kVA is above 100 percent of the rated power of 3150 kVA, the capacity at this cooling and annual average ambient temperature.
35The quote states a no-load loss of 1550 W, but the selection table lists 3800 W for this rating.
36The quote states a load loss at 120 C of 9000 W, but the selection table lists 22000 W for this rating.
37The quote states a sound power level of 65 dB(A), but the selection table lists 74 dB(A) for this rating.

  

  

    
Scenarios and results
Click to expand
    
The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Losses on the quote: 1250 kVA at 24 kV with the losses of a 1000 kVA rating

    
The agent's request. Please quote a cast resin transformer, 1250 kVA at 24 kV insulation level, for indoor use, with no enclosure and natural air cooling. The quote states a no-load loss of 1550 W, a load loss of 9000 W, a short-circuit voltage of 6 percent and a sound power level of 67 dB(A). The continuous load is 1000 kVA. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Stated no-load loss differs from the table. The quote states a no-load loss of 1550 W, but the selection table lists 1800 W for this rating.
    • 
      
  • Stated load loss differs from the table. The quote states a load loss at 120 C of 9000 W, but the selection table lists 11000 W for this rating.
    • 
    

    
2. Losses on the quote: The agent resubmits after fixing the errors

    
The agent's request. Please quote a cast resin transformer, 1250 kVA at 24 kV insulation level, for indoor use, with no enclosure and natural air cooling. The quote states a no-load loss of 1800 W, a load loss of 11000 W, a short-circuit voltage of 6 percent and a sound power level of 67 dB(A). The continuous load is 1000 kVA. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Selection table row. Selection table row 1250 kVA at 24 kV insulation level: no-load loss 1800 W, load loss at 120 C 11000 W, short-circuit voltage 6 percent, sound power level 67 dB(A).
    • 
    

    
3. Enclosure size: 1600 kVA at 12 kV in a size 3 standard enclosure, indoor

    
The agent's request. Please quote a cast resin transformer, 1600 kVA at 12 kV insulation level, for indoor use, with a standard enclosure of size 3 at protection class IP23 and natural air cooling. The quote states a no-load loss of 2200 W, a load loss of 13000 W, a short-circuit voltage of 6 percent and a sound power level of 68 dB(A). The continuous load is 1280 kVA. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Standard enclosure too small. The chosen standard enclosure size takes transformers up to 1000 kVA at this voltage series; the quote has 1600 kVA, so a larger standard enclosure or a project enclosure is needed.
    • 
    

    
4. Enclosure size: The agent resubmits after fixing the errors

    
The agent's request. Please quote a cast resin transformer, 1600 kVA at 12 kV insulation level, for indoor use, with a standard enclosure of size 4 at protection class IP23 and natural air cooling. The quote states a no-load loss of 2200 W, a load loss of 13000 W, a short-circuit voltage of 6 percent and a sound power level of 68 dB(A). The continuous load is 1280 kVA. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Selection table row. Selection table row 1600 kVA at 12 kV insulation level: no-load loss 2200 W, load loss at 120 C 13000 W, short-circuit voltage 6 percent, sound power level 68 dB(A).
    • 
    

    
5. Outdoor installation: 630 kVA outdoors with no enclosure and a 700 kVA load

    
The agent's request. Please quote a cast resin transformer, 630 kVA at 12 kV insulation level, for outdoor use, with no enclosure and natural air cooling. The quote states a no-load loss of 1100 W, a load loss of 7600 W, a short-circuit voltage of 4 percent and a sound power level of 62 dB(A). The continuous load is 700 kVA. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Outdoor installation without a suitable enclosure. An enclosure is mandatory for outdoor installation, with a minimum protection class of IP23; the quote has none or a lower class.
    • 
      
  • Load above the capacity. The continuous load of 700 kVA is above 100 percent of the rated power of 630 kVA, the capacity at this cooling and annual average ambient temperature.
    • 
    

    
6. Outdoor installation: The agent resubmits after fixing the errors

    
The agent's request. Please quote a cast resin transformer, 630 kVA at 12 kV insulation level, for outdoor use, with a project enclosure at protection class IP54 and fan cooling with 4 fans. The quote states a no-load loss of 1100 W, a load loss of 7600 W, a short-circuit voltage of 4 percent and a sound power level of 62 dB(A). The continuous load is 700 kVA. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Selection table row. Selection table row 630 kVA at 12 kV insulation level: no-load loss 1100 W, load loss at 120 C 7600 W, short-circuit voltage 4 percent, sound power level 62 dB(A).
    • 
    

    
7. Jet System: Jet System at 1000 kVA

    
The agent's request. Please quote a Jet System cast resin transformer, 1000 kVA at 12 kV insulation level, for indoor use with a continuous load of 800 kVA. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Jet System outside 1.6 to 4 MVA. The Jet System is delivered in the power range from 1.6 MVA to 4 MVA; the quote has 1000 kVA.
    • 
    

    
8. Jet System: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Jet System cast resin transformer, 2000 kVA at 12 kV insulation level, for indoor use with a continuous load of 1600 kVA. It is ready to send.

    
Verdict: Allowed.

  

  

    
Narration transcript
Click to expand
    
The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares a cast resin transformer for a customer: the rated power and insulation level, the enclosure and protection class, the cooling, and more. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the manufacturer's published planning guide and returns a verdict, every reason and the figures it looked up.
    2. 
      
  2. I will start with the first request by the agent.
    3. 
      
  3. The agent says. Please quote a cast resin transformer, 1250 kVA at 24 kV insulation level, for indoor use, with no enclosure and natural air cooling. The quote states a no-load loss of 1550 W, a load loss of 9000 W, a short-circuit voltage of 6 percent and a sound power level of 67 dB(A). The rest of the request is on screen.
    4. 
      
  4. Before it goes out, the agent calls the validator.
    5. 
      
  5. Blocked, with two findings, all in one answer. The quote states a no-load loss of 1550 W, but the selection table lists 1800 W for this rating. The quote states a load loss at 120 C of 9000 W, but the selection table lists 11000 W for this rating.
    6. 
      
  6. The validator returned two blocking findings in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
    7. 
      
  7. What this shows: for stated losses and sound power must match the selection table, a rules-based CPQ can do this only with workarounds.
    8. 
      
  8. Now the agent resubmits.
    9. 
      
  9. The corrected request. It changes the no-load loss on the quote to 1800 and the load loss on the quote to 11000.
    10. 
      
  10. It calls the validator again.
    11. 
      
  11. This time the validator clears it.
    12. 
      
  12. Both earlier findings are cleared.
    13. 
      
  13. Two problems caught in one call, fixed in one pass, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer.
    14.