PSC 113.0913(2)(2) Meters equipped with electronic programmable registers may be shop tested on a periodic basis. PSC 113.0913 HistoryHistory: Cr. Register, July, 2000, No. 535, eff. 8-1-00; CR 02-027: am. (1) (intro.) and (a), Register December 2002 No. 564, eff. 1-1-03. PSC 113.0914PSC 113.0914 Testing of polyphase electromechanical and completely solid state electronic meters used with instrument transformers at fixed periodic intervals. In this section, “meter” or “meters” may refer to metering system(s). PSC 113.0914(1)(1) Polyphase meters used with instrument transformers, together with associated equipment such as demand equipment, pulsing devices, phase-shifting transformers, control devices, etc., shall be tested on the customer’s premises, a central testing facility or in a mobile test facility, except for pars. (a) and (d), for accuracy at unity and 50% power factor under the following circumstances. PSC 113.0914(1)(a)(a) Before being placed in service. For new meters given a prior test by the manufacturer, the manufacturer’s certified test results may be substituted for this requirement. PSC 113.0914(1)(e)(e) Within a period of 4 months before or 4 months after 2 years of service for non-magnetic-bearing electromechanical meters, 4 years of service for electromechanical magnetic-bearing surge-proof meters and 6 years of service for completely solid state electronic meters with electronic registers capable of down-loading voltage and current monitoring readings from the instrument transformers to digital meter reading devices at meter reading intervals. Exception: Electronic (solid state) meters may be tested instead in accordance with the plan outlined in s. PSC 113.0921. PSC 113.0914(2)(2) A stator balance test shall be performed on all new meters before being placed in service. PSC 113.0914(3)(3) Meters with electronic programmable registers may be shop tested on a periodic basis. PSC 113.0914 HistoryHistory: Cr. Register, July, 2000, No. 535, eff. 8-1-00; CR 02-027: am. (1) (intro.) and (a), Register December 2002 No. 564, eff. 1-1-03. PSC 113.0915PSC 113.0915 Testing of metering installations utilizing pulse devices. PSC 113.0915(1)(1) Metering installations utilizing pulse initiators and pulse recorders shall be checked for accuracy each billing period by comparing the recorded pulse count against the registration of the corresponding meter. When the results are not in agreement within the accuracy limits of s. PSC 113.0812 (2) the pulse devices shall be promptly tested and adjusted to required accuracy or replaced. PSC 113.0915(2)(2) Pulse devices shall be tested before use and as part of the complete metering installation whenever the associated watthour meter is tested. PSC 113.0915 HistoryHistory: Cr. Register, July, 2000, No. 535, eff. 8-1-00. PSC 113.0916PSC 113.0916 Testing of instrument transformers. PSC 113.0916(1)(1) No instrument transformer shall be placed in service, or allowed to remain in service, if it shows evidence of physical damage, discolored terminals due to overload, change in texture or resiliency of insulation, or arc tracking on the insulation or bushings. PSC 113.0916(2)(2) Instrument transformers of all utilities shall be tested for voltage withstand by the manufacturer, the utility, or a laboratory approved for such test by the commission before being placed in service. Each instrument transformer that has been removed from service shall be tested for voltage withstand prior to reinstallation if the reason for removal or physical appearance, gives cause to doubt its reliability. The utility shall maintain a record of all such tests. PSC 113.0916(3)(3) Instrument transformers of class A privately-owned utilities shall be tested at the utility meter shop or the manufacturers’ certified test reports may be used to determine accuracy (ratio correction factor and phase angle): PSC 113.0916(3)(c)(c) When there is evidence from outward appearance or performance to suspect inaccuracy. PSC 113.0916(3)(d)(d) The manufacturer’s calibration results may be acceptable on all new voltage transformers rated above 15,000 volts. Removal tests of these transformers may also be omitted except in those cases where there is reason to suspect that a transformer malfunction has occurred. PSC 113.0916(4)(4) Instrument transformers of other than class A private-owned utilities shall be tested at the utilities meter shop, the manufacturer’s laboratory or a laboratory approved by the commission for accuracy (ratio correction factor and phase angle): PSC 113.0916(4)(b)(b) When there is evidence from outward appearance or performance to suspect inaccuracy. PSC 113.0916(5)(5) Instrument transformers in service shall be given an approved check (such as the variable burden method in the case of current transformers or a field check of the secondary voltage with a good quality voltmeter in the case of voltage transformers) made in conjunction with each field test of the associated watthour meter. When such check provides evidence that the instrument transformer may be inaccurate, that instrument transformer shall be tested for accuracy. PSC 113.0916 HistoryHistory: Cr. Register, July, 2000, No. 535, eff. 8-1-00.