* Judge throws out all defence objections
* Tymoshenko accused over 2009 gas deal with Russia
* Says her trial is political, refuses to stand in court
* West has warned Ukraine against "selective justice"
(Updates with ruling on trial from June 29)
By Pavel Polityuk and Richard Balmforth
KIEV, June 25 (Reuters) - Former Ukrainian prime minister Yulia Tymoshenko must stand trial next Wednesday on a charge of abuse of power, a judge ruled in a pre-trial hearing late on Saturday.
The charge carries a jail term of at least seven years.
Judge Rodion Kyriyev threw out objections by Tymoshenko and her defence that the charge against her was politically motivated and that President Viktor Yanukovich was behind it.
Earlier, the 50-year-old political firebrand had continued to argue that the accusation against her, which relates to the signing of a 2009 gas deal with Russia when she was in power, was part of a wider political plot.
"The aim of this trial is the liquidation of a working opposition in Ukraine," she said, before Kyriyev handed down his ruling.
"Consideration of the case is set for June 29 at 10 a.m.," Kyriyev declared, after emerging from deliberations.
Tymoshenko, twice prime minister and now in opposition, has alleged Yanukovich, her bitter political foe, was the instigator of a crooked court action that was certain to convict her.
Though Western governments have not come down publicly on her side, visiting EU politicians have told the Yanukovich leadership they are concerned over the possible use of "selective justice" in Ukraine.
The gas supply agreement ended a stand-off between Russia and its ex-Soviet neighbour over the pricing of Russian gas which had led to supplies being cut off to Western Europe. It has since been denounced by the Yanukovich leadership as a sell-out, though Kiev is continuing to observe it.
The prosecution alleges that Tymoshenko, without consulting her government, forced the then-head of state energy firm Naftogaz to sign the gas deal with Russia's Gazprom . She denies this.
"I did not break the law so where is the basis for the 7-10 years sentence which our 'bought' state prosecutor wants pronounced against me?" she asked on Saturday before the judge made his ruling.
While a few hundred of her supporters braved torrential rain on the streets of Kiev to express their solidarity, Tymoshenko used her oratory in the courtroom to berate Kyriyev, whom she denounced on Friday as a Yanukovich "puppet".
Refusing to stand to address the court, she told Kyriyev: "Since this is an ordered operation by the President, I permit myself to act towards the court as it does towards me. When the court becomes honourable, only then will I address you as 'Your Honour'".
She also asked for other accusations against her, including misuse of government funds received in exchange of emission quotas sold to Japan under the Kyoto protocol, to be heard by the court.
Tymoshenko became known as the "gas princess" in the late 1990s as owner of a company which bought and sold Russian gas.
With her trademark peasant-style hair braid, she became an international figure in 2004 when she led the "Orange Revolution" street demonstrations that ultimately doomed Yanukovich's first bid for the presidency.
She went on to serve two terms as prime minister. But in February 2010, with many people disillusioned that the Orange Revolution leaders had failed to deliver on their promises, she lost to Yanukovich in a bitter fight for the presidency.
Though remaining very popular across the country, she has failed to unify the opposition around her since her defeat. (Reporting by Pavel Polityuk; Writing by Richard Balmforth; Editing by Mark Trevelyan)